WO2021024485A1 - ハラル対応除菌液 - Google Patents
ハラル対応除菌液 Download PDFInfo
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- WO2021024485A1 WO2021024485A1 PCT/JP2019/031501 JP2019031501W WO2021024485A1 WO 2021024485 A1 WO2021024485 A1 WO 2021024485A1 JP 2019031501 W JP2019031501 W JP 2019031501W WO 2021024485 A1 WO2021024485 A1 WO 2021024485A1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P1/00—Disinfectants; Antimicrobial compounds or mixtures thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
- A61L2/16—Disinfection or sterilisation of materials or objects, in general; Accessories therefor using chemical substances
- A61L2/18—Liquid substances
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K33/00—Medicinal preparations containing inorganic active ingredients
- A61K33/20—Elemental chlorine; Inorganic compounds releasing chlorine
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/02—Local antiseptics
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/08—Chlorous acid
Definitions
- the present disclosure relates to a sterilizing solution containing chlorinated water, which sterilizes the animal by directly contacting the sterilizing solution with the animal.
- Halal-compatible products have not been confirmed at this time.
- the present invention provides the following items.
- (Item 1) A sterilizing solution containing chlorite water, which sterilizes the animal by directly contacting the sterilizing solution with the animal.
- (Item 2) The disinfectant solution according to item 1, wherein the contact is achieved by a rubbing method, a scrub method or a basin method.
- (Item 3) The sterilizing solution according to item 2, wherein the phosphate buffer solution contains two or more kinds of phosphates.
- the phosphate buffer solution contains two or more of potassium dihydrogen phosphate, dipotassium hydrogen phosphate, and sodium dihydrogen phosphate.
- (Item 5) The sterilizing solution according to item 4, wherein the potassium dihydrogen phosphate is 0.68% to 13.61%, and the sodium dihydrogen phosphate is 0.60% to 12.00%.
- (Item 6) The disinfectant solution according to item 4, wherein the potassium dihydrogen phosphate is 1% and the sodium dihydrogen phosphate is 1%.
- (Item 7) The sterilizing solution according to item 4, wherein the potassium dihydrogen phosphate is 0.68% to 13.61%, and the dipotassium hydrogen phosphate is 0.87% to 17.42%.
- (Item 8) The disinfectant solution according to item 4, wherein the potassium dihydrogen phosphate is 1% and the dipotassium hydrogen phosphate is 1%.
- (Item 9) The sterilizing solution according to any one of items 1 to 8, wherein the animal is a living animal.
- the disinfectant solution according to item 10 wherein the surface of the animal is skin.
- (Item 14) The sterilizing solution according to any one of items 1 to 13, wherein the sterilization is performed in the preparation of food.
- (Item 15) The disinfectant solution according to any one of items 1 to 14, wherein chlorous acid is used at 10 ppm to 60,000 ppm.
- (Item 16) The disinfectant solution according to any one of items 1 to 15, wherein chlorous acid is used at 200 ppm to 8,000 ppm.
- (Item 17) The sterilizing solution according to any one of items 1 to 16, wherein the free chlorine concentration of the chlorinated water is 0.25 mg / L to 1,500 mg / L.
- (Item 18) The sterilizing solution according to any one of items 1 to 17, wherein the sterilization targets at least one selected from viruses, bacteria, and eukaryotes.
- the sterilizing solution according to any one of items 1 to 18, wherein the sterilizing solution does not contain an animal-derived component, an alcohol component, or a fragrance.
- a halal-compatible hand sanitizer containing 1.00% chlorous acid water, 1.00% sodium dihydrogen phosphate, 1.00% potassium dihydrogen phosphate, and 97.00% ion-exchanged water.
- a disinfectant solution having 400 ppm of chlorous acid and 10 mg / L of free chlorine concentration.
- a halal-compatible hand sanitizer containing 20.00% chlorous acid water, 1.00% potassium dihydrogen phosphate, 1.00% dipotassium hydrogen phosphate, and 78.00% ion-exchanged water.
- a disinfectant solution having 8,000 ppm of chlorous acid and 200 mg / L of free chlorine concentration.
- Sodium hypochlorite which is used in the field of disinfectants, is strongly irritating to the skin such as rough hands when directly sprayed or immersed in the disinfectant site, and direct use is not preferable.
- Sodium hypochlorite is prescribed in the drug approval as an effective chlorine concentration of 0.01 to 0.05% (100 ppm to 500 ppm), but this concentration is the minimum concentration that causes cytotoxicity. It is higher than 0.001% (10 ppm; Japanese Journal of Infectious Diseases Vol.71 (2016), No.5 pp.333-337), and its use as a drug is limited to very limited cases, but the present disclosure It was found that the chlorite water in the water does not have such restrictions.
- Povidone iodine preparations used in the field of disinfectants are not recommended for iodine hypersensitivity or problems with thyroid function, and are irritating to the skin, coloring (browning), and surgical incisions.
- the chlorinated waters of the present disclosure have been found to have no such restrictions.
- Alcohols used in the field of disinfectants are also irritating to the skin, but the chlorinated water of the present disclosure has been found to be extremely less irritating.
- alcohols are dangerous substances (class 4 alcohols), so there are restrictions on the storage and installation locations and, in some cases, the quantity.
- the chlorinated water of the present disclosure is norovirus.
- Benzalkonium chloride used in the field of disinfectants is a low-level disinfectant, effective against general bacteria and yeast-like fungi, and has a narrow antibacterial spectrum.
- the benzoic acid water of the present disclosure has been found to have a disinfecting effect on a broad antibacterial spectrum.
- the present application provides a sterilizing solution capable of sterilizing an animal by directly contacting the animal.
- the sterilizing solution containing chlorinated water can come into direct contact with animals, disinfection with a high sterilizing effect such as rubbing method (rubbing method), scrub method (cleaning method), and basin method (immersion method). It can be sterilized firmly using the method. All four disinfection methods (rubbing method, scrub method, swab method, basin method) can be used for the chlorinated water and chlorinated water preparations of the present disclosure.
- chlorite water and chlorite water preparation correspond to high-level disinfectants that can also sterilize and disinfect spores, and can be used for each disinfection method, so there is the advantage that one drug can be used for batch management. There is also.
- the disinfectant solution containing chlorite water can be an alcohol-free and animal-free fragrance-free disinfectant, it can also be used in the production of halal foods.
- FIG. 1 shows the skin of the test substance treatment group of Example 2.
- FIG. 2 shows the skin of the comparative control substance treatment group of Example 2.
- FIG. 3 shows the ocular reaction of Example 3.
- FIG. 4 shows a treatment site treated with the test substance of Example 4.
- FIG. 5 shows the treatment site treated with the negative control group of Example 4.
- FIG. 6 shows the treatment site treated with the negative control group of Example 4.
- FIG. 7 shows the treatment site treated with the positive control group of Example 4.
- references to "about” with respect to values or parameters herein include variability with respect to the values or parameters themselves. Unless otherwise specified, for example, “about X” includes “X” itself and a value that allows an error of ⁇ 10% thereof.
- chlorous acid water is an aqueous solution containing chlorous acid (HClO 2 ) used as a bactericidal agent, which creates a stable chemical equilibrium state and transfers chlorous acid to chlorine dioxide. By delaying the decomposition reaction, chlorous acid (HClO 2 ) can be stably maintained for a long period of time.
- acid chlorite ion represent the peak around 260nm between wavelengths 240 ⁇ 420 nm in the UV spectrum (H + + ClO 2 -) in the absorbing section and 350nm near containing
- the presence of chlorinated water can be recognized when two absorption portions containing chlorine dioxide (ClO 2 ) representing a peak can be confirmed at the same time, that is, when a twin aneurysm is indicated.
- Mainly chlorite (HClO 2) At this time, chlorine dioxide (ClO 2), and acidic chlorite ion (H + + ClO 2 -) considered cycle reaction is proceeding concurrently.
- the chlorinated water can be prepared by the method disclosed in International Publications WO2008 / 026607, WO2014 / 188310, WO2014 / 188311, WO2014 / 188312, WO2015 / 093062, and WO2017 / 170904.
- Chlorous acid water was designated as a food additive on February 1, 2013, and is a bactericidal agent containing chlorous acid (HClO 2 ) as the main active ingredient, and is the main ingredient of this "chlorous acid water".
- the active ingredient, chlorous acid (HClO 2 ) is a semi-stable chemical and is recognized by the US USDA and FDA as a particularly safe substance in food additives: processing aids.
- chlorinated water can exert a strong bactericidal effect even in the presence of organic substances, and the National Institute of Health Sciences (commonly known as the National Institute of Health Sciences) stated that “2015 norovirus inactivation”.
- the National Institute of Health Sciences commonly known as the National Institute of Health Sciences
- “2015 norovirus inactivation” In the “Survey on Conditions”, it was highly evaluated that “only chlorinated water could be inactivated below the detection limit under all load conditions", and "mass cooking facility cooking manual” " In order of large-scale food poisoning accidents such as "Pickle Sanitation Standards", chlorinated water is being listed along with the revision of the Food Sanitation Law Enforcement Regulations.
- Chlorous acid water whose main active ingredient is chlorous acid, has a strong bactericidal activity equal to or higher than that of "hypochlorite water” and "sodium hypochlorite". Its reactivity is gradual, and although it does not have a bactericidal effect (immediate effect) that is exerted instantly, it possesses gradual reactivity while having accurate bactericidal activity, and also maintains stable bactericidal activity.
- "Chlorous acid water” has the feature that it is slow but surely in a dirty environment where a lot of organic substances are present, which has been said to be the weakest point for chlorine oxide chemicals so far. Moreover, the bactericidal effect can be accurately exhibited. (Bactericidal power against microorganisms lurking in dirt).
- resistant bacteria that have been difficult to sterilize until now (heat-resistant bacteria whose resistance increases by forming spores, drug-resistant bacteria for which antibiotics are no longer effective, etc.), fungi such as mold and yeast, Furthermore, it can exert an inactivating effect on viruses (including non-enveloped viruses).
- "Hydronic acid water” does not need to be adjusted at the time of use, does not require a dedicated generator for that purpose, and can be used by anyone when they want to use it anywhere, and it is safe.
- sterilization means removing microorganisms such as filamentous fungi, bacteria, and viruses having pathogenicity, harmfulness, and infectivity.
- the specification uses a broad concept including not only eradication (action) but also antibacterial (action), sterilization (action), and disinfection (action). Therefore, those having an antibacterial action, a bactericidal action, a sterilizing action, and a disinfecting action are collectively referred to as a "sterilizing agent" in the present specification, and when used normally in the present specification, the antibacterial action or the sterilizing action, It is understood to be a drug that also has contents corresponding to bactericidal action, sterilizing action, and disinfecting action.
- microorganisms eradicated in the present specification include microorganisms that cause food poisoning, pathogenic microorganisms, microorganisms that may cause infectious diseases, drug-resistant microorganisms (bacteria), and the like. Fecal Escherichia coli, pathogenic Escherichia coli, Staphylococcus aureus, Salmonella spp., Vibrio parahaemolyticus, Campylobacter, Clostridium perfringens, and Bacillus cereus. The relationship between the microorganisms that cause food poisoning, pathogenic microorganisms, microorganisms that may cause infectious diseases, and drug-resistant bacteria (bacteria) is as follows.
- infectious disease means that the host is infected from humans, animals, the environment, etc., the amount of pathogens becomes constant in the body, and symptoms such as fever, diarrhea, and cough appear in the host. It can occur even with a small amount of microorganisms.
- virus the infected host may continue to coexist with the virus for a long period of time and become a carrier (persistent infection), or an infection that does not lead to disease (subclinical infection).
- Infection means that a pathogen invades the body of a host (human or animal) and grows and proliferates in the body.
- pathogen refers to a microorganism (bacteria, virus, fungus, liquettia, protozoan, parasite) that infects and causes a disease, and a pathogen excluding the parasite is called a "pathogenic microorganism”.
- Class 1 infectious diseases (Ebola hemorrhagic fever, Chlamydia congo fever, hemorrhoids, South American hemorrhagic fever, pest, Marbrook's disease, Lassa fever, etc.), Class 2 infectious diseases (acute gray-white scab (porio), tuberculosis, diphtheria, SARS, etc.), Class 3 infectious diseases (cholera, bacterial dysfunction, intestinal hemorrhagic Escherichia coli infection, intestinal typhoid, paratyphus, etc.), class 4 infectious diseases (hepatitis A / E, malaria, yellow fever, Q fever, mad dog disease, botulinum disease, malaria, etc. ), Type 5 infectious diseases (influenza, viral hepatitis, crosspolydium disease, AIDS, regular chlamydia infections, syphilis, hepatitis, MRSA, norovirus, etc.).
- food poisoning refers to oral infection caused by eating or drinking (orally ingested) food (case). Food poisoning is a food-borne infection and is part of the infection. Many food poisoning incidents occur every year by ingesting meat, etc., caused by animals (livestock) and microorganisms existing in the natural world. Bacterial food poisoning includes infectious infectious type (Salmonella, etc.), infectious toxin type (Vibrio parahaemolyticus, pathogenic Escherichia coli, etc.), and toxin type such as Staphylococcus aureus and Clostridium botulinum.
- Viral food poisoning includes those caused by norovirus, hepatitis A virus, hepatitis E virus and the like.
- Chemical food poisoning includes those caused by harmful food additives (arsenic, residual pesticides, etc.), pollutants, and the like.
- Natural food poisoning includes animal-derived substances such as puffer fish poison and shellfish poisoning, which are natural poisons, and plant-derived substances such as poisonous mushrooms and poisonous plants, which are natural poisons. Allergic food poisoning is also mentioned.
- the "pathogenic microorganism” refers to a microorganism that is transmitted through humans and the environment, excluding food poisoning (oral infection). Infected individuals can spread the microorganisms through diarrhea, vomiting, coughing, etc. and become infected by secondary infection.
- drug resistance refers to a phenomenon in which drugs having some action on oneself, such as antibiotics, have resistance, and these drugs do not work or become difficult to work. It occurs when an animal (human) becomes infectious and becomes resistant to the drug (antibiotic) in the body when treated with antibiotics. All bacteria may have acquired resistance to some antibiotics. Antibiotics include bacteriostatic agents (which suppress the growth of bacteria) and fungicides (which kill bacteria).
- drug-resistant bacteria means bacteria that have acquired drug resistance.
- drug-resistant bacteria include methicillin-resistant yellow staphylococcus (MRSA), multidrug-resistant green pus (MDRP), vancomycin-resistant enterococci (VRE), Clostridium difficile (CD: spore formation, toxin production), and vancomycin.
- MRSA methicillin-resistant yellow staphylococcus
- MDRP multidrug-resistant green pus
- VRE vancomycin-resistant enterococci
- CD Clostridium difficile
- vancomycin examples include, but are not limited to, resistant yellow staphylococci, multidrug-resistant yellow staphylococcus, green pustulosis, penicillin-resistant pneumoniae bacilli, multidrug-resistant acinetobacter, carbapenem-based antibacterial agent-resistant bacteria, and multidrug-resistant seratia.
- drug resistance genes are generally acquired as genes that confer drug resistance.
- the present invention is considered to have a bacterial killing effect by destroying such a gene or a gene product as well. Therefore, the present invention has been demonstrated to be effective for specific multidrug-resistant bacteria that can tolerate a plurality of drugs, and those skilled in the art can be extrapolated to those that are generally effective for simpler drug-resistant bacteria. Understood by.
- multidrug-resistant bacteria refers to bacteria that have acquired drug resistance against a plurality of drugs (particularly antibiotics).
- the "sterilizing solution” means a liquid disinfectant.
- contacting the disinfectant solution directly with the animal means contacting the animal by spraying the disinfectant solution or immersing the disinfectant portion of the animal in the disinfectant solution.
- the present specification does not include wiping with cotton wool, gauze, a treatment sheet, or the like impregnated with cotton wool (swab method (cleaning method)).
- the "rubbing method (rubbing method)" (also called a waterless method) is a method of using a disinfectant solution and rubbing it on a disinfectant site (for example, fingers) until it dries.
- a disinfectant site for example, fingers
- the disinfectant solution can be sprayed on the palm, rubbed well on both hands, and then thoroughly drained with a non-woven fabric or a hand dryer and dried. The most effective and convenient.
- the "scrub method (cleaning method)" is a method in which a disinfectant solution containing a cleaning agent is used to whisk well and flush with running water. After hand washing, a paper towel or the like is used to completely wipe off the water. is there. A brush may be used. Dirt removal and disinfection can be done at the same time.
- the "basin method (immersion method)” is a method in which a sterilizing solution having a constant concentration is put into a basin (wash basin, etc.) and the sterilized part is immersed and washed. Soak a clean non-woven fabric or cloth in the disinfectant solution, soak the disinfectant part firmly, use the soaked non-woven fabric or cloth, wipe it in the liquid, and dry it thoroughly with a non-woven fabric or a hand dryer. Can be done by
- the "swab method (cleaning method)" is a method in which a disinfectant solution is sufficiently impregnated into absorbent cotton, gauze, non-woven fabric, etc., and the disinfectant site is wiped off.
- the swab method (cleaning method) is the least effective as compared with the other methods described above. In the present specification, the swab method (cleaning method) does not correspond to direct contact of the disinfectant solution with the animal.
- the "animal surface” refers to the surface of the animal body such as the skin, hair, claws, wings, scales, horns, and teeth of the animal. It also includes parts that can be easily contacted from the outside, such as the mouth.
- free chlorine is defined as "free residual chlorine and binding specified by the Minister of Health, Labor and Welfare based on the provisions of Article 17, Paragraph 2 of the Enforcement Regulations of the Waterworks Law. It is a value measured by Appendix 3 (hereinafter, colorimetric method (DPD indicator)) of "Chlorine Inspection Method”, and is a value obtained by oxidizing the DPD indicator.
- DPD indicator colorimetric method
- concentration of chlorite water indicates a value measured by the following (quantification method of chlorite water).
- high-level disinfectant (sterilizing solution) is classified by Spalding (Rutala WA: APIC Guideline for selection and use of disinfectants. 1996. Am J Infect Control 1996; 24: 3). It is one of the classifications of chemical disinfection methods. A disinfectant that kills all microorganisms, except when there are many spores. Glutaral preparations, phthalal preparations, peracetic acid preparations and the like can be mentioned.
- the term "medium-level disinfectant (disinfectant)” is classified by Spalding (Rutala WA: APIC Guideline for selection and use of disinfectants. 1996. Am J Infect Control 1996; 24: 3). It is one of the classifications of chemical disinfection methods. A disinfectant that kills tubercle bacilli, vegetative bacteria, most fungi, and most viruses, but not spores. Examples include sodium hypochlorite, povidone iodine preparations, and alcohols.
- the term "low-level disinfectant (disinfectant)” is classified by Spalding (Rutala WA: APIC Guideline for selection and use of disinfectants. 1996. Am J Infect Control 1996; 24: 3). It is one of the classifications of chemical disinfection methods. A disinfectant that kills most vegetative bacteria, certain fungi, and certain viruses. Examples include chlorhexidine preparations, quaternary ammonium salts, amphoteric surfactants and the like.
- halal correspondence does not include what is referred to as “haram (forbidden)” in Islamic teaching.
- Examples of “halal” include alcohol, animal components, and the like, and are shown in Halal hood guideline (Department of Halal Certification EU). In the present specification, it means that it is produced on a production line without containing “haram” such as alcohol, animal components, and fragrances from raw materials.
- a sterilizing solution containing chlorite water which sterilizes the animal by directly contacting the sterilizing solution with the animal. .. Since the disinfectant solution of the present disclosure comes into direct contact with animals, microorganisms such as filamentous fungi, bacteria, and viruses can be firmly removed, and it is unlikely that they will remain unremoved. The disinfectant solution of the present disclosure does not cause any damage even if it comes into direct contact with an animal because it is less irritating.
- the contact is achieved by a rubbing method (rubbing method), a scrub method (cleaning method) or a basin method (immersion method).
- rubbing method rubbing method
- scrub method cleaning method
- basin method immersion method
- higher sterilization effect can be obtained compared to the swab method (cleaning method).
- the level of direct contact with the skin is higher, so there are concerns about safety.
- the chlorinated water of the present disclosure is surprisingly used in the rubbing method, scrub method, basin method, etc. It was unexpectedly found that contacting the liquid directly with the animal did not cause damage to the skin such as fingers.
- the sterilizing solution containing a phosphoric acid buffer solution containing 0.5% to 20% of a 40,000 ppm chlorous acid water stock solution has a chlorous acid content of 200 ppm to 8000 ppm. If 1% of a 40,000 ppm chlorous acid water stock solution is blended, the amount of chlorous acid becomes 400 ppm. When 0.5% to 20% of a chlorous acid aqueous stock solution 4% to 6% (40,000 ppm to 60,000 ppm) product is blended, the amount of chlorous acid is 200 ppm to 12000 ppm.
- the phosphate buffer solution contains two or more types of phosphates.
- the phosphate buffer solution contains two or more of potassium dihydrogen phosphate, dipotassium hydrogen phosphate, and sodium dihydrogen phosphate.
- potassium dihydrogen phosphate is 0.68% to 13.61%
- sodium dihydrogen phosphate is 0.60% to 12.00%.
- Potassium dihydrogen phosphate is 0.7%, 0.8%, 0.9%, 1.0%, 2.0%, 3.0%, 4.0%, 5.0%, 6.0. %, 7.0%, 8.0%, 9.0%, 10%, 11%, 12%, 13%, and can be any number between these values.
- Sodium dihydrogen phosphate is 0.60%, 0.7%, 0.8%, 0.9%, 1.0%, 2.0%, 3.0%, 4.0%, 5.0. %, 6.0%, 7.0%, 8.0%, 9.0%, 10%, 11%, 12%, and can be any number between these values.
- potassium dihydrogen phosphate is 1% and sodium dihydrogen phosphate is 1%.
- potassium dihydrogen phosphate is 0.68% to 13.61%
- dipotassium hydrogen phosphate is 0.87% to 17.42%
- Potassium dihydrogen phosphate is 0.7%, 0.8%, 0.9%, 1.0%, 2.0%, 3.0%, 4.0%, 5.0%, 6.0. %, 7.0%, 8.0%, 9.0%, 10%, 11%, 12%, 13%, and can be any number between these values.
- Dipotassium hydrogen phosphate is 0.9%, 1.0%, 2.0%, 3.0%, 4.0%, 5.0%, 6.0%, 7.0%, 8.0. %, 9.0%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, and can be any number between these values.
- potassium dihydrogen phosphate is 1% and dipotassium hydrogen phosphate is 1%.
- the animal is a living animal.
- the animal includes the surface of the animal.
- the surface of the animal is skin.
- the surface of the animal is a finger.
- the animal includes the human body.
- the sterilization is performed in the preparation of food.
- Food preparation includes preparation in both food processing plants and cooking facilities (kitchens). Food preparation is done by those who are engaged in food processors and food handlers such as processed foods, those who cook and cook, those who use restaurants including restaurants and cooking facilities including kitchens, and those who go in and out of these places. It covers all people who do, raw material suppliers and distributors, those who serve food, those who directly touch food, those who indirectly touch food, and so on.
- Chlorous acid is about 10 ppm, about 15 ppm, about 20 ppm, about 25 ppm, about 30 ppm, about 40 ppm, about 50 ppm, about 60 ppm, about 70 ppm, about 80 ppm, about 90 ppm, about 100 ppm, about 150 ppm, about 200 ppm, about 250 ppm, About 300 ppm, about 350 ppm, about 400 ppm, about 450 ppm, about 500 ppm, about 550 ppm, about 600 ppm, about 650 ppm, about 700 ppm, about 750 ppm, about 800 ppm, about 850 ppm, about 900 ppm, about 950 ppm, about 1,000 ppm, about 1, 500ppm, about 2,000ppm, about 2,500ppm, about 3,000ppm, about 3,500ppm, about 4,000ppm, about 4,500ppm, about 5,000ppm, about 5,500ppm, about 6,000ppm, about 6,
- the free chlorine concentration of chlorinated water is about 0.25 mg / L, about 0.3 mg / L, about 0.35 mg / L, about 0.4 mg / L, about 0.45 mg / L, about 0.5 mg / L.
- the eradication targets at least one selected from viruses, bacteria, and eukaryotes.
- the eradication targets microorganisms that cause food poisoning, pathogenic microorganisms, microorganisms that may cause infectious diseases, drug-resistant bacteria (bacteria), and the like.
- the disinfectant solution does not contain animal-derived components, alcohol components, or fragrances.
- chlorous acid water 1.00%, sodium dihydrogen phosphate 1.00%, potassium dihydrogen phosphate 1.00% and ion-exchanged water 97.00 are halal-compatible hand sanitizers.
- This disinfectant solution does not contain animal-derived components, alcohol components, or fragrances, and is halal-compatible.
- the fingers can be easily sterilized by spraying directly onto the fingers without the need for dilution.
- a substance having high sterilizing power and sterilizing by directly contacting fingers has never existed and is the first in the world. It is said that a sterilizing solution containing such a concentration of phosphate buffer, chlorous acid, and free chlorine is safe for skin irritation, eye irritation, and skin sensitization while having high sterilizing power. The discovery is unpredictable.
- the sterilizing solution for halal-compatible fingers chlorous acid water 20.00%, potassium dihydrogen phosphate 1.00%, dipotassium hydrogen phosphate 1.00% and ion-exchanged water 78.00.
- This disinfectant solution does not contain animal-derived components, alcohol components, or fragrances, and is halal-compatible. It can be diluted (for example, 4-fold dilution, 8-fold dilution, 20-fold dilution) and used in processed food factories and mass cooking facilities, and can be used at low cost.
- the chlorite water used in the present disclosure has the characteristics found by the present inventors.
- a chlorite water produced by any method such as a known production method as described in the above-mentioned literature can be used.
- As a typical composition for example, 61.40% of chlorous acid water, 1.00% of potassium dihydrogen phosphate, 0.10% of potassium hydroxide and 37.50% of purified water are blended and used.
- 72% of chlorous acid water corresponds to 30,000 ppm of chlorous acid), but is not limited to this, and 0.25% to 75% of chlorous acid water and diphosphate.
- Potassium hydrogen may be 0.70% to 17.42%, and potassium hydroxide may be 0.10% to 5.60%.
- Sodium dihydrogen phosphate may be used instead of potassium dihydrogen phosphate, and sodium hydroxide may be used instead of potassium hydroxide.
- chlorite water 1.00% potassium dihydrogen phosphate, 1.00% sodium dihydrogen phosphate and 97.00% purified water are blended and used.
- chlorinated water is 0.1% to 5%
- potassium dihydrogen phosphate is 0.68% to 13.6%
- sodium dihydrogen phosphate is 0.60% to 12.0%. good.
- chlorite water As a typical composition, 20.00% chlorite water, 1.00% potassium dihydrogen phosphate, 1.00% dipotassium hydrogen phosphate and 78.00% purified water are blended and used. However, chlorite water is 15% to 25%, potassium dihydrogen phosphate is 0.68% to 13.6%, and dipotassium hydrogen phosphate is 0.87% to 17.4%. good.
- This agent reduces the decay of chlorous acid due to contact with organic matter under acidic conditions, but maintains its bactericidal effect.
- the generation of chlorine gas is slight, and it also has the feature of suppressing the amplification of the odor of a mixture of chlorine and organic substances.
- the chlorinated water of the present disclosure is reacted by adding sulfuric acid or an aqueous solution thereof in an amount and concentration capable of maintaining the pH value of the aqueous solution to 3.4 or less with an aqueous solution of sodium chlorate.
- This can be produced by generating chloric acid and then adding an amount of hydrogen peroxide equal to or greater than the amount required for the reduction reaction of the chloric acid.
- the chlorous acid water of the present disclosure is prepared by adding sulfuric acid or an aqueous solution thereof to an aqueous solution of sodium chlorate in an amount and concentration capable of maintaining the pH value of the aqueous solution at 3.4 or less.
- chloric acid is generated, and then chlorous acid is generated by adding an amount of hydrogen peroxide equal to or more than the amount required for the reduction reaction of the chloric acid. It is produced by adding either one of inorganic acids and inorganic acid salts alone, or two or more kinds of simple substances or a combination thereof, and adjusting the pH value within the range of 3.2 to 8.5. be able to.
- the chlorous acid water of the present disclosure is prepared by adding sulfuric acid or an aqueous solution thereof in an amount and concentration capable of maintaining the pH value of the aqueous solution to 3.4 or less in an aqueous solution of sodium chlorate.
- chloric acid is generated, and then chlorous acid is generated by adding an amount of hydrogen peroxide equal to or more than the amount required for the reduction reaction of the chloric acid.
- the pH value is adjusted within the range of 3.2 to 8.5 by adding any single substance of inorganic acid or inorganic acid salt or organic acid or organic acid salt, or two or more kinds of simple substances or a combination thereof. By doing so, it can be generated.
- the chlorinated water of the present disclosure is prepared by adding sulfuric acid or an aqueous solution thereof to an aqueous solution of sodium chlorate in an amount and concentration capable of maintaining the pH value of the aqueous solution at 3.4 or less.
- sulfuric acid or an aqueous solution thereof to an aqueous solution of sodium chlorate in an amount and concentration capable of maintaining the pH value of the aqueous solution at 3.4 or less.
- hydrogen peroxide in an amount equal to or greater than the amount required for the reduction reaction of the chloric acid to form an aqueous solution in which chloric acid is produced.
- Inorganic acid or inorganic acid salt alone or two or more types alone or a combination thereof and then either inorganic acid or inorganic acid salt or organic acid or organic acid salt alone or It can be produced by adding two or more kinds of simple substances or a combination thereof and adjusting the pH value within the range of 3.2 to 8.5.
- carbonic acid, phosphoric acid, boric acid or sulfuric acid can be used as the inorganic acid in the above method.
- the inorganic acid salt can be a carbonate, an inorganic hydroxide, a phosphate or a borate.
- sodium carbonate, potassium carbonate, sodium hydrogencarbonate or potassium hydrogencarbonate can be used as the carbonate.
- inorganic hydroxide sodium hydroxide or potassium hydroxide, calcium hydroxide, barium hydroxide can be used.
- the phosphate used is disodium hydrogen phosphate, sodium dihydrogen phosphate, trisodium phosphate, tripotassium phosphate, dipotassium hydrogen phosphate or potassium dihydrogen phosphate. be able to.
- sodium borate or potassium borate can be used as the borate.
- the organic acid can be succinic acid, citric acid, malic acid, acetic acid or lactic acid.
- the organic acid salts include sodium succinate, potassium succinate, sodium citrate, potassium citrate, sodium malate, potassium malate, sodium acetate, potassium acetate, sodium lactate, potassium lactate.
- calcium lactate can be used.
- chlorous acid water containing chlorous acid (HClO 2 ) that can be used as a bacterial killing agent
- sulfuric acid (H 2 SO 4 ) or an aqueous solution thereof is added to an aqueous solution of sodium chlorate (NaClO 3 ).
- chlorous acid (HClO 3 ) obtained under acidic conditions is added with hydrogen peroxide (H 2 O 2 ) in an amount necessary for converting chloric acid (HClO 3 ) into chlorous acid by a reduction reaction. (HClO 2 ) is produced.
- the basic chemical reaction of this production method is represented by the following formulas A and B.
- Formula A shows that chloric acid can be obtained by adding sulfuric acid (H 2 SO 4 ) or an aqueous solution thereof in an amount and concentration that can maintain the pH value of an aqueous solution of sodium chlorate (NaClO 3 ) within acidic conditions. Then, the B-type, chlorate (HClO 3) is reduced with hydrogen peroxide (H 2 O 2), shows that the chlorite (HClO 2) is generated.
- chlorine dioxide gas (ClO 2 ) is generated (C type), but by coexisting with hydrogen peroxide (H 2 O 2 ), chlorous acid (HClO 2) undergoes the reactions of formulas D to F. ) Is generated.
- chlorous acid HClO 2
- chloride ion Cl ⁇
- hypochlorous acid HClO
- chlorous acid (HClO 2 ) or chlorine dioxide gas (ClO 2 ) obtained by the above method, or an aqueous solution containing these contains either a single inorganic acid, an inorganic acid salt, an organic acid or an organic acid salt, or two types.
- Chlorous acid (HClO 2 ) can be stably maintained for a long period of time by creating a transition state and delaying the decomposition reaction by adding the above single substance or a combination thereof.
- chlorous acid (HClO 2 ) or chlorine dioxide gas (ClO 2 ) obtained by the above method or an aqueous solution containing these is mixed with an inorganic acid or an inorganic acid salt, specifically, a carbonate or an inorganic hydroxide. It is possible to use a single substance, two or more types of single substances, or a combination of these.
- an inorganic acid or an inorganic acid salt specifically, an inorganic acid or an inorganic acid salt, or an aqueous solution obtained by adding a carbonate or an inorganic hydroxide as a simple substance or two or more kinds of simple substances or a combination thereof. It is possible to use an organic acid or an organic acid salt added alone, two or more kinds alone, or in combination thereof.
- an inorganic acid, an inorganic acid salt, an organic acid or an organic acid salt is added to the aqueous solution produced by the above method alone, in combination of two or more kinds, or in combination thereof. You can use things.
- Examples of the above-mentioned inorganic acid include carbonic acid, phosphoric acid, boric acid and sulfuric acid.
- Examples of the inorganic salt include carbonates and inorganic hydroxides, as well as phosphates and borates. More specifically, the carbonates include sodium carbonate, potassium carbonate and sodium hydrogen carbonate.
- Potassium hydrogen carbonate, inorganic hydroxides are sodium hydroxide and potassium hydroxide, calcium hydroxide, barium hydroxide, phosphates are disodium hydrogen phosphate, sodium dihydrogen phosphate, trisodium phosphate, phosphate.
- tripotassium, dipotassium hydrogen phosphate, potassium dihydrogen phosphate, and borate sodium borate and potassium borate may be used.
- organic acid examples include succinic acid, citric acid, malic acid, acetic acid and lactic acid.
- organic acid salt sodium succinate, potassium succinate, sodium citrate, potassium citrate, sodium malate, potassium malate, sodium acetate, potassium acetate, sodium lactate, potassium lactate or calcium lactate are suitable.
- the decomposition rate of the chlorite aqueous solution at pH increases as the pH decreases, that is, the acid becomes stronger. That is, the absolute speeds of the reactions (a), (b) and (c) in the above formula are increased.
- the proportion of the reaction (a) decreases as the pH decreases, but the total decomposition rate fluctuates greatly, that is, increases, so that the amount of chlorine dioxide (ClO 2 ) generated also increases as the pH decreases.
- the lower the pH value the faster the sterilization and bleaching, but the irritating and harmful chlorine dioxide gas (ClO 2 ) makes the work difficult and adversely affects human health.
- the reaction of chlorous acid to chlorine dioxide proceeds rapidly, the chlorous acid becomes unstable, and the time during which the bactericidal activity can be maintained is extremely short.
- the pH is determined from the viewpoint of suppressing the generation of chlorine dioxide and balancing with the bactericidal activity. Adjust the value within the range of 3.2 to 8.5.
- the sterilizing solution of the present disclosure can sterilize an animal by directly contacting the animal.
- a sterilization method a rubbing method (rubbing method), a scrub method (cleaning method), or a basin method (immersion method) can be used.
- the swab method cleaning method may be used. In food processing plants, restaurants including cafeterias, cooking facilities including kitchens, etc., sterilization can be performed at the time of admission, and sterilization can be performed each time.
- chlorous acid aqueous preparation used in the following examples was produced as follows.
- chlorinated water may be abbreviated as "sub-water”, but it has the same meaning.
- chlorinated water preparation was manufactured based on the following formulation.
- the concentration of "chlorite water” was measured based on the above “quantification method of chlorite water” for the “chlorite water preparation produced with chlorite water” prepared based on the above preparation method, and each implementation was carried out.
- the chlorinated water of each example was prepared using a buffer solution (a phosphate buffer solution containing dipotassium hydrogen phosphate and potassium dihydrogen phosphate) prepared to have the free chlorine concentration described in the examples. ..
- the contact time was 5 minutes.
- a sterilizing effect of 3 Logs or more was observed from the first time, and the sterilizing effect of 3 Logs or more was maintained until the 10th time.
- the contact time was 2 minutes, the sterilization effect of 2 Log or more, which was the standard value, was not observed at the first time.
- hypochlorous acid aqueous preparation was evaluated by ASTEM Standard E1174 at two set values (free chlorine concentration 25 mg / L, content of HClO 2 of 1,000 ppm; and free chlorine concentration of 10 mg / L, content of HClO 2 of 400 ppm). It is shown that it meets the criteria based on the criteria and has a sufficient sterilizing effect.
- the sterilization effect was confirmed by the rubbing method (waterless method), which is one of the hand disinfection (sterilization) methods during surgery in hospitals.
- the method of using the hand disinfectant (sterilization) agent installed at the entrance or the entrance / exit of the facility is as follows (the amount of one discharge of the dispenser is 3 ml / one time). Used in. (See “How to use hand sanitizer (sterilization) medicine" (see https://www.yoshida-homecare.com/jitsurei/01.html)
- Example 2 Skin irritation test of chlorite water preparation using rabbit
- a skin irritation test was conducted using 3 female Kbl: NZW rabbits.
- three animals treated with sodium hypochlorite were set as control groups, and their irritant responses were compared.
- 0.5 mL of the test substance was evenly applied to a lint cloth patch, which was exposed to the back skin of the rabbit for 4 hours. Skin reactions and general conditions were observed daily for 1, 24, 48 and 72 hours and up to 14 days after patch removal.
- body weight was measured before administration and at the end of observation.
- the GHS hazard category skin corrosive and skin irritant
- the GHS hazard category skin corrosive and skin irritant
- Test materials and methods 14.1. Test animal 14.1.1. Rabbit Seed 14.1.2. System [Grade] New Zealand White Species (Kbl: NZW) [SPF] 14.1.3. Producer Kitayama Labes Co., Ltd. 14.1.4. Where to buy Oriental Yeast Co., Ltd. 14.1.5. Reasons for selecting the test system For animals, the white rabbit recommended by the guidelines was selected. For the strain, the New Zealand white rabbit, which is widely used for this type of test, was selected. 14.1.6. Weekly age A 16-week-old animal was purchased and the test substance was administered at 17-week-old (body weight range: 2.89 to 3.20 kg). 14.1.7. Number of animals purchased 7 females 14.1.8. Number of animals used 6 females
- Breeding management 14.2.1. Breeding environment Animals were bred in the 7-207 breeding room [positive pressure] (W4.8 x D 10.3 x H 2.6 m), and the standard values for environmental control were as follows. Temperature: 17-23 ° C (measured value: 20.8-21.4 ° C) Humidity: 35-70% RH (measured value: 50-67% RH) Ventilation rate: 8 times or more / h Lighting: 12 hours (lit at 7 o'clock, turned off at 19:00) One animal was housed in a breeding cage (W62.2 x D 75.6 x H 46.2 cm). The breeding cage was changed every other week and the feeder was changed once a week. 14.2.2. Feed Solid feed (RC4, LotNo.
- the quarantine period was from the delivery of animals to the weight measurement on the day before administration, and the acclimation period was before administration. During this period, the general condition was observed once a day (excluding Saturday and Sunday), and the body weight was measured at the time of delivery and the day before administration (before hair cutting).
- Individual identification Kitayama Labes Co., Ltd. uses the serial number entered on the auricle of the animal as the animal number (Animal ID No.), and attaches the animal identification card (Animal ID card) that specifies the animal number to the cage. Was identified.
- Test group composition and reasons for choosing test method 14.7.1.
- Reasons for selecting the test method Based on the information that chlorinated water is not irritating to the skin, a method of exposing the test substance to a total of 3 rabbits for 4 hours was selected according to the test guidelines. Even in the sodium hypochlorite preparation, there was no description indicating corrosiveness from the product package insert.
- test substance was used as it was for administration.
- test substances and comparative control substances were classified into the GHS [2] hazard category. If it is not classified into categories 1 to 3, it is excluded from the category.
- Comparative control substance treatment group (Table 1-2) The average score of erythema / scab and edema of each animal at 48, 72 hours and 4 days after patch removal, which maximizes the total skin reaction score, was calculated and found to be 3.0 for erythema / scab and 3.0 for edema. It was 2.7 to 3.0.
- GHS hazard category corrosive and irritating to the skin
- the skin (irritating) reaction of all cases did not recover during the observation period, and up to 14 days after patch removal, which was judged to be a corrosive reaction in one case. Since scars that did not heal were observed, it was classified as Category 1 (corrosive).
- the GHS hazard category skin corrosive and skin irritant
- the GHS hazard category skin corrosive and skin irritant
- Example 3 Eye irritation test of chlorite water preparation using rabbit
- an eye irritation test was conducted using 3 female Kbl: NZW rabbits.
- 0.1 mL of the test substance was administered into the conjunctival sac of the animal's right eye.
- Ocular reactions in the treated eyes were observed 1, 24, 48 and 72 hours after administration and the general condition was observed, and body weight was measured before and at the end of observation.
- the condition of the corneal epithelium Presence or absence of damaged site was confirmed by staining with an aqueous solution of sodium fluorescein.
- Test substance 13.1. Name Japanese name: Chlorous acid water (formulation) English name: Chlorous acid water (formulation)
- Test materials and methods 14.1. Test animal 14.1.1. Rabbit Seed 14.1.2. System [Grade] New Zealand White Species (Kbl: NZW) [SPF] 14.1.3. Producer Kitayama Labes Co., Ltd. 14.1.4. Where to buy Oriental Yeast Co., Ltd. 14.1.5. Reasons for selecting the test system For animals, the white rabbit recommended by the guidelines was selected. For the strain, the New Zealand white rabbit, which is widely used for this type of test, was selected. 14.1.6. Weekly age A 10-week-old animal was purchased and the test substance was administered at 11-week-old age (body weight range: 2.10 to 2.30 kg). 14.1.7. Number of animals purchased 4 females 14.1.8. Number of animals used 3 females
- the quarantine period was from the delivery of animals to the weight measurement on the day before administration, and the acclimation period was before administration. During this period, the general condition was observed once a day (excluding Saturday and Sunday), and the body weight was measured at the time of delivery and the day before administration (before confirmation of corneal epithelium).
- Test group composition and reasons for choosing test method 14.7.1.
- test substance was used as it was for administration.
- Observation, measurement and inspection 15.1. Observation of ocular response Responses in the cornea, iris and conjunctiva of the eye administered 1, 24, 48 and 72 hours after administration were observed and scored according to the criteria for ocular response (Draize [1], 1959). Regarding the state of the corneal epithelium, 24 hours after administration, a 2% aqueous solution of sodium fluorescein was instilled, washed with physiological saline, and then the stained (damaged) range of the cornea was observed. In addition, as reference data, the treated eyes of all the cases were photographed using a digital camera during observation 24 hours after the administration.
- Conjunctiva A Conjunctival redness (eyelid conjunctiva and eyeball conjunctiva excluding cornea and iris) Blood vessels are normal ⁇ 0 Blood vessels are clearly hyperemic than normal ⁇ 1 Diffuse, crimson and difficult to distinguish individual blood vessels ⁇ 2 Diffuse beef-like red ⁇ 3
- a Maximization Test was conducted using 20 Slc: Hartley female guinea pigs (SPFs) in order to obtain information on the skin sensitization of chlorinated water preparations.
- the medium and treatment concentration in the skin sensitization test were set based on the results of the preliminary test conducted in advance.
- 10 animals were used to inject 0.2 w / v% test substance solution (medium: distilled water) intradermally in the first sensitization treatment, and 100% test substance solution in the second sensitization treatment. (Undiluted solution) was closed and pasted for 48 hours.
- a 20 w / v% test substance solution was occluded and applied for 24 hours.
- control groups 5 negative control groups using a medium during intradermal sensitization treatment and 5 positive control groups using the positive control substance ⁇ -Hexyl cinnamaldehyde (HCA) were provided. Skin reactions were observed at all evoked treatment sites in each group.
- HCA ⁇ -Hexyl cinnamaldehyde
- the skin sensitization rate of the test substance was calculated to be 0%, and since it did not reach the lower limit of any of the GHS hazard categories (skin sensitization), it was judged to be out of the category.
- a skin reaction with a score of 3 was observed in all 5 cases in the positive control group, and no animal showed a skin reaction in the negative control group.
- the skin sensitization rate of the positive control substance was calculated to be 100%, and the skin sensitization of HCA, which is the positive control substance, was confirmed. Therefore, the skin sensitization of the chlorous acid water preparation was appropriately evaluated in the test. It was judged that it was done.
- HCA Positive control substance
- ⁇ -Hexyl cinnamaldehyde which is widely used in sensitization tests and is exemplified in the guideline, was selected as the positive control substance.
- Test materials and methods 14.1.
- Reasons for selecting the test system The guinea pigs recommended in the test guidelines were selected. For the strain, the Slc: Hartley strain was selected in consideration of susceptibility to known chemical substances, genetic stability, and the like. 14.1.5. Weekly age A 6-week-old animal was purchased and started at 7-week-old (body weight range: 384-452 g). 14.1.6. Number of animals purchased 22 females 14.1.7. Number of animals used 20 females
- Breeding management 14.2.1. Breeding environment Animals were bred in the 7-201 breeding room [positive pressure] (W6.4 x D 10.3 x H 2.6 m), and the standard values for environmental control were as follows. Temperature: 20-26 ° C (measured value: 22.8-23.3 ° C) Humidity: 35-70% RH (measured value: 48-61% RH) Ventilation rate: 12 times or more / h Lighting: 12 hours (lit at 7 o'clock, turned off at 19:00) Using a flush-type breeding machine (Toyo Riko), one animal was housed in an aluminum front and floor stainless steel mesh breeding cage (W 29.1 x D 26.3 x H 18.0 cm).
- a water quality inspection based on the Water Supply Law was conducted by an external organization in April 2017, and it was confirmed that the inspection results were within the standard values of the water supply quality standard (Report No. K17-0031).
- a bacterial test (general bacterial and E. coli test) was conducted at the reputation center in June, July and August 2017, and it was confirmed that no bacteria were detected (GT17-06). , GT17-07, GT17-08).
- the period from the delivery of animals to the start of sensitization treatment was defined as the quarantine and habituation period.
- the quarantine and habituation period The period from the delivery of animals to the start of sensitization treatment was defined as the quarantine and habituation period.
- the general condition of the animals was observed once daily (excluding Saturdays and Sundays) and acclimatized to the test environment.
- body weight was measured at the time of delivery and before the start of sensitization treatment (at the end of the quarantine / acclimation period). No abnormalities were found in any of the animals in these observations and measurements.
- Grouping Grouping was performed on Day 0 (sensitization treatment start date).
- test group composition Composition of test group and reason for setting concentration 14.7.1.
- Test group composition FCA: Freund's complete adjuvant -: Only the patch was treated. 14.7.2.
- Reason for setting the concentration The treatment concentration of the test substance was set based on the results of the preliminary test [Test No. H520 (697-003)] (GLP not applied). In the preliminary test, a total of 9 concentrations of test substance solution of 0.1, 0.2, 0.5, 1, 2, 5, 10, 20 and 50 w / v% (medium: distilled water) were applied to each animal at two locations of 0.1 mL each.
- a corrosive reaction (white spots or crusting at the administration site) was observed at the administration site at a concentration of 0.5 w / v% or more 24 hours after the administration.
- a skin reaction with a score of 2 was observed at the 0.2 w / v% administration site and a score of 1 or 2 was observed at the 0.1 w / v% administration site.
- a total of 3 concentrations of 4, 20 w / v% (medium: distilled water) and 100% (stock solution) of the test substance were occluded and applied to 2 animals for 24 hours, and as a result, 100% was applied 24 hours after patch removal.
- a moderate skin reaction was observed at the application site of 20 w / v% or less, and no skin reaction was observed at the application site of 20 w / v% or less. No abnormalities in general condition were observed in animals with intradermal injection and occlusion application.
- the intradermal injection of the sensitization treatment in this test gave a moderate (score 2) skin reaction, and the highest concentration of 0.2 w / v%, which did not show a corrosive reaction, was felt.
- Test substance treatment group (100% test substance solution) A stock solution of the test substance was used. 14.9.3.2. Negative control group No administration solution was used. 14.9.3.3. Positive control group (100% HCA solution) The HCA stock solution was used.
- test substance treatment group and negative control group (20w / v% test substance solution) 2 g of test substance was weighed. Distilled water (water for injection, LotNo. K6D73) was added thereto, and the mixture was stirred and the volume was adjusted to 10 mL. 14.9.4.2. Positive control group and negative control group (10w / v% HCA solution) HCA 0.3g was weighed. Liquid paraffin (Lot No. 816186, Yoshida Pharmaceutical Co., Ltd.) was added thereto, and the mixture was stirred and the volume was adjusted to 3 mL.
- Sensitization treatment 1st (Day0) Hair was removed from the back of the chest of the animal using an electric clipper and a shaver. A 2 x 4 cm administration section (image 1, the area surrounded by (1) to (3)) was provided on the hair removal site by marking with an oil-based pen. 0.1 mL of each of the prepared administration solutions (1) to (3) (section 14.9.1.) of each test group was intradermally injected so as to correspond to the administration sites (1) to (3) of Image 1. 14.10.2. Open application of 10% sodium dodecyl sulfate mixture (Day7) On Day 7, the back of the chest of the animal (the part of images 1 and (4)) was depilated using an electric clipper and a shaver.
- a 10% sodium dodecyl sulfate mixture (Section 14.9.2.) was thinly and uniformly openly applied to the same site in the test substance treatment group and the negative control group. 14.10.3.
- Second sensitization procedure (Day 8-10) A 2 x 4 cm filter paper coated with surgical tape (2 inches wide, Blenderm TM , 3M) on one side, using a pipette (MICROMAN®, model M1000, Gilson) to administer each test group (14.9. 3.) 0.2 mL was applied evenly. This patch was applied to the administration compartments (sites in images 1 and 4) to correspond to the administration site in each test group and then secured with surgical tape (2 inches wide, Transpore TM , 3M).
- This patch was applied to the administration compartments (sites in images 1, (5) and (6)) so as to correspond to the administration site in each test group, and then fixed with surgical tape (width 2 inches, Transpore TM , 3M). After applying the occlusion for 24 hours, the patch was removed and the site to be treated was marked with an oil-based pen. The test substance remaining at the site of induction treatment was removed using distilled water and tissue paper.
- the skin sensitization rate was calculated as [(number of sensitization-positive animals / number of animals used) x 100].
- the occurrence of skin reaction at the site of induction treatment was confirmed (skin sensitization rate of 30% or more), and it was confirmed that the experimental method was appropriate.
- Test results 17.1. Observation of skin reaction (Appendix1, Photographs 1 to 4 (Figs. 4 to 7)) Observation of the site of evoked treatment treated with the test substance showed no skin reaction in any of the animals. On the other hand, when observing the site of induction treatment of the positive control substance, a skin reaction with a score of 3 was observed in all 5 cases in the positive control group, and no animal showed a skin reaction in the negative control group.
- Weight measurement (Appendix2) Body weight at the end of observation of all animals increased from the start of sensitization (Day 0).
- the disinfectant solution containing chlorite water is "out of classification" in terms of skin corrosiveness and irritation, serious damage to the eyes or eye irritation, and skin sensitization. That is, when a disinfectant solution containing chlorite water is applied to the skin, there is no corrosive reaction on the skin, there is no erythema or edema, and when applied to the eye, the cornea, glow, and conjunctiva are normal. It has been shown to show no skin sensitization.
- sodium hypochlorite is "Category 1" in terms of skin corrosiveness and irritation, as well as severe damage or eye irritation to the eye, and is very mild when applied to the skin.
- Ethanol is "Category 2B” or “Category 2" for severe eye damage or irritation to the eye, and a positive reaction above a certain score in corneal opacity, ulceris, uveitis, and / or chemosis.
- disinfectants containing chlorinated water do not cause harmful events when in direct contact with animals and can directly disinfect animals.
- the sterilizing solution containing chlorinated water has high sterilizing performance and can come into direct contact with animals, so the rubbing method (rubbing method), scrub method (cleaning method), and basin method (immersion method) It has been shown that sterilization can be performed firmly by using a disinfection method with a high sterilization effect.
- the disinfectant solution of the present disclosure can be used for disinfecting animals.
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Abstract
Description
(項目1)
亜塩素酸水を含む除菌液であって、該除菌液を直接動物に接触することにより該動物を除菌するものである除菌液。
(項目2)
前記接触がラビング法、スクラブ法またはベースン法により達成される、項目1に記載の除菌液。
(項目3)
前記リン酸緩衝液が、2種類以上のリン酸塩を含む、項目2に記載の除菌液。
(項目4)
前記リン酸緩衝液が、リン酸二水素カリウム、リン酸水素二カリウム、またはリン酸二水素ナトリウムのうちの2種類以上を含む、項目2または3に記載の除菌液。
(項目5)
リン酸二水素カリウムが0.68%~13.61%であり、リン酸二水素ナトリウムが0.60%~12.00%である、項目4に記載の除菌液。
(項目6)
リン酸二水素カリウムが1%であり、リン酸二水素ナトリウムが1%である、項目4に記載の除菌液。
(項目7)
リン酸二水素カリウムが0.68%~13.61%であり、リン酸水素二カリウムが0.87%~17.42%である、項目4に記載の除菌液。
(項目8)
リン酸二水素カリウムが1%であり、リン酸水素二カリウムが1%である、項目4に記載の除菌液。
(項目9)
前記動物が生きた動物である、項目1~8のいずれか1項に記載の除菌液。
(項目10)
前記動物が、動物の表面を含む、項目1~9のいずれか1項に記載の除菌液。
(項目11)
前記動物の表面が、皮膚である、項目10に記載の除菌液。
(項目12)
前記動物の表面が、手指である、項目11に記載の除菌液。
(項目13)
前記動物が、人体を含む、項目1~12のいずれか1項に記載の除菌液。
(項目14)
前記除菌が、食品の準備においてなされる、項目1~13のいずれか1項に記載の除菌液。
(項目15)
亜塩素酸が10ppm~60,000ppmで使用される、項目1~14のいずれか1項に記載の除菌液。
(項目16)
亜塩素酸が200ppm~8,000ppmで使用される、項目1~15のいずれか1項に記載の除菌液。
(項目17)
亜塩素酸水の遊離塩素濃度が、0.25mg/L~1,500mg/Lである、項目1~16のいずれか1項に記載の除菌液。
(項目18)
前記除菌が、ウイルス、細菌、および真核生物から選択される少なくとも1つを対象とする、項目1~17のいずれか1項に記載の除菌液。
(項目19)
前記除菌液が、動物由来成分も、アルコール成分も、香料も含まない、項目1~18のいずれか1項に記載の除菌液。
(項目20)
ハラル対応手指用除菌液であって、亜塩素酸水1.00%、リン酸二水素ナトリウム1.00%、リン酸二水素カリウム1.00%およびイオン交換水97.00%を含み、亜塩素酸が400ppmであり、遊離塩素濃度が10mg/Lである、除菌液。
(項目21)
ハラル対応手指用除菌液であって、亜塩素酸水20.00%、リン酸二水素カリウム1.00%、リン酸水素二カリウム1.00%およびイオン交換水78.00%を含み、亜塩素酸が8,000ppmであり、遊離塩素濃度が200mg/Lである、除菌液。
本開示の1つの局面において、亜塩素酸水を含む、除菌液であって、該除菌液を直接動物に接触することにより該動物を除菌するものである除菌液が提供される。本開示の除菌液は、直接動物に接触するので、糸状菌、細菌、ウイルスなどの微生物をしっかりと除去することができ、除去されずに残る可能性は低い。本開示の除菌液は、直接動物に接触しても、刺激性が低いので、障害を起こさない。
本開示で使用される亜塩素酸水は、本発明者らが見出した特徴を有するものである。上述した文献に記載されるような既知の製法等の任意の方法により製造された亜塩素酸水を用いることができる。代表的な組成として、たとえば、亜塩素酸水61.40%、リン酸二水素カリウム1.00%、水酸化カリウム0.10%および精製水37.50%のものを配合し、使用することができる(出願人より販売される。亜塩素酸水72%は亜塩素酸30000ppmに該当する。)が、これに限定されず、亜塩素酸水は0.25%~75%、リン酸二水素カリウムは、0.70%~17.42%、水酸化カリウムは、0.10%~5.60%であっても良い。リン酸二水素カリウムの代わりにリン酸二水素ナトリウムを、水酸化カリウムの代わりに水酸化ナトリウムを使用しても良い。代表的な組成としてはまた、亜塩素酸水1.00%、リン酸二水素カリウム1.00%、リン酸二水素ナトリウム1.00%および精製水97.00%のものを配合し、使用することができるが、亜塩素酸水0.1%~5%、リン酸二水素カリウム0.68%~13.6%、リン酸二水素ナトリウム0.60%~12.0%であって良い。代表的な組成としてはまた、亜塩素酸水20.00%、リン酸二水素カリウム1.00%、リン酸水素二カリウム1.00%および精製水78.00%のものを配合し、使用することができるが、亜塩素酸水15%~25%、リン酸二水素カリウム0.68%~13.6%、リン酸水素二カリウムは、0.87%~17.4%であって良い。この薬剤は、酸性条件下で、有機物との接触による亜塩素酸の減衰を低減させているが、殺菌効果は維持している。かつ、塩素ガスの発生が軽微であり、塩素と有機物が混合した臭いの増幅をおさえるという特徴をも有する。
本開示の除菌液は、直接動物に接触させることにより、動物を除菌することができる。除菌方法としては、ラビング法(擦式法)、スクラブ法(洗浄法)またはベースン法(浸漬法)により行なわれ得る。スワブ法(清拭法)を使用していもよい。食品加工場、食堂を含む喫飲食施設、厨房を含む調理施設などにおいては、入場時に除菌することができ、また都度都度で除菌することができる。
本品約5gを精密に量り,水を加えて正確に100mlとする。この試料液20mlを正確に量り、ヨウ素ビンに入れ、硫酸(1→10)10mlを加えた後、ヨウ化カリウム1gを加え、直ちに密栓をしてよくふり混ぜる。ヨウ素瓶の上部にヨウ化カリウム試液を流し込み、暗所に15分間放置する。次に栓を緩めてヨウ化カリウム試液を流し込み、直ちに密栓してよくふり混ぜた後、遊離したヨウ素を0.1mol/Lチオ硫酸ナトリウムで滴定する(指示薬デンプン試液)。指示薬は液の色が淡黄色に変化した後に加える。別に空試験を行い補正する。0.1mol/Lチオ硫酸ナトリウム溶液1ml=1.711mg HClO2)。
以下の実施例で使用される亜塩素酸水製剤は、以下のように製造した。本明細書では、亜塩素酸水は「亜水」と略称することがあるが、同義である。
亜塩素酸水の成分分析表
(除菌効果)
以下を使用した:
菌株: Escherichia coli NBRC3972 (自社保有菌株使用)
培地 :デソキシコレート寒天培地
希釈(回収):滅菌水、Saline(生理食塩水)、滅菌ビニール手袋
薬液濃度 :α)遊離塩素濃度(Cl=35.45 として):25 mg/L 以上;3mL×2(ディスペンサー)、消毒(除菌)時間2分間
β)遊離塩素濃度(Cl=35.45として):10mg/L以上;3mL×2(ディスペンサー)、消毒(除菌)時間5 分間
γ)遊離塩素濃度(Cl=35.45として):10mg/L以上:3mL×2(ディスペンサー)、消毒(除菌)時間2 分間
(試験手順)
(1)指標菌液3mLを手指(片手)に汚染させ、2分間乾燥させる。
(2)ビニール手袋をはめ、50mLの滅菌水を流しいれ、全体にいきわたるように手を揉む(口を塞いで、滅菌水がこぼれないようにする)。
(3)滅菌水を回収し、適時生理食塩水で希釈した液0.1 mL を培地に塗抹し、35℃で培養する。(ベースライン)。
(4)(1)の操作を行った後、手指(片手)の消毒を揉みこみながら2分間(試験区βは5分間)行う。
(5)(4)の操作を10回繰り返し、(2)の操作は1回目と、3回目と、7回目と、10回目に行う。
1回目の消毒後、5分以内に≧2Log10 reducation(低減)し、10回目の消毒後、5分以内に≧3Log10reducation(低減)すること。
(結果)
薬液濃度:
(「手指消毒(除菌)薬の使い方」(https://www.yoshida-homecare.com/jitsurei/01.html参照)
以下を使用した:
菌株: Escherichia coli NBRC3972 (自社保有菌株使用)
培地 :デソキシコレート寒天培地
希釈(回収):滅菌水,Saline(生理食塩水)、滅菌ビニール手袋
薬液濃度 :α)遊離塩素濃度(Cl=35.45 として):10mg/L以上;3mL×1(ディスペンサー)、消毒(除菌)時間5 分間
(試験手順)
(1)指標菌液3mL を手指(片手)に汚染させ、2 分間乾燥させる。
(2)ビニール手袋をはめ、50mLの滅菌水を流しいれ、全体にいきわたるように手を揉む(口を塞いで、滅菌水がこぼれないようにする。
(3)滅菌水を回収し、適時生理食塩水で希釈した液0.1mL を培地に塗抹し、35℃で培養する。(ベースライン)
(4)(1)の操作を行った後、上記「手指消毒(除菌)薬の使い方」に従って手指(両手)の消毒(除菌)を揉みこみながら5分間行う。
(5)(4)の操作を10回繰り返し、(2)の操作は1 回目と、3 回目と、7 回目と、10 回目に行う。
<判断基準>
1 回目の消毒(除菌)後、5 分以内に≧2Log10reducation(低減)し、10 回目の消毒(除菌)後、5 分以内に≧3Log10 reducation(低減)すること。
遊離塩素濃度(Cl=35.45として)10mg/l の亜塩素酸水の希釈液を、手指(両手)に3ml/手×1 回使用し、上記「手指消毒(除菌)薬の使い方」に従い、接触時間を5 分間で確認してみた。その結果、1回目から2Log 以上の減菌効果が認められ、10 回目まで3Log 以上の減菌効果が維持していた。そのため、遊離塩素濃度(Cl=35.45 として)が10mg/Lの亜塩素酸水の希釈液を使用し、接触時間を5分間にした場合、薬液量が3ml/手×1 回でも「※1手指消毒(除菌)薬の使い方」に従えば1 回目から3Log 以上の減菌効果が得られることが判った。
(ウサギを用いる亜塩素酸水製剤の皮膚刺激性試験)
亜塩素酸水製剤の皮膚刺激性および腐食性を調べるため,Kbl:NZW ウサギ雌3 匹を用いて皮膚刺激性試験を実施した。また,比較対照群として次亜塩素酸ナトリウム製剤処置群3 匹を設定し、その刺激性反応を比較した。被験物質0.5mL をリント布製パッチへ均一に塗布し、これをウサギの背部皮膚に4 時間暴露した。パッチ除去後1,24,48 および72 時間さらに14 日までの毎日、皮膚反応を観察するとともに一般状態を観察した。加えて投与前および観察終了時に体重測定を行った。
ウサギを用いる亜塩素酸水製剤の皮膚刺激性試験
亜塩素酸水製剤の皮膚刺激性および腐食性を調べるため、ウサギを用いて皮膚刺激性試験を実施する。また、比較対照物質として次亜塩素酸ナトリウム製剤を投与し、その刺激性反応を比較する。
- 「医薬品の安全性に関する非臨床試験の実施の基準に関する省令」(平成9年3月26 日厚生省令第21 号)
- OECDGuideline for Testing of Chemicals 404 (28 July 2015: Acute Dermal
Irritation/Corrosion)
当該試験は、「動物の愛護及び管理に関する法律」(昭和48年10月1日法律第105号,最終改正:平成26 年5 月30 日法律第46 号)および「実験動物の飼養及び保管並びに苦痛の軽減に関する基準」(平成18年4 月28 日環境省告示第88 号,最終改正:平成25 年8 月30 日環境省告示第84 号)を遵守して実施された。当該試験は安評センターの動物実験委員会により試験開始前に審査、承認されており(承認番号17-0030A),安評センター「動物実験に関する指針」(2014年6 月2 日)に記載された動物倫理評価基準に従って実施された。
13.1.1. 名称
和名:亜塩素酸水製剤
英名:Chlorous acid water(formulation)
13.1.5. 成分含量
13.1.5.1. 有効成分
亜塩素酸 0.8%
13.1.5.1.1. 有効成分(実測値)
亜塩素酸水(総塩素量:HClO2 = 68.46)[%]0.84
遊離塩素(HClO2 = 68.46)[mg/L] 448
13.1.5.2. その他成分
リン酸水素二カリウム
リン酸二水素カリウム
13.1.6. 安定性
有効期限内指定条件下で安定
13.1.7. 物質の状態
13.1.7.1. 外観
鮮やかな黄~薄い緑みの黄の透明な液体
13.1.7.2. 臭い
塩素臭
13.1.8. 有効期限
2018 年2 月7 日(製造後1年)
13.1.9. 保管条件
冷蔵,遮光,気密
13.1.9.1. 保管温度実測値および保管期間
- 3.1~7.5°C
- 2017 年5 月2 日~2017年6 月13 日(被験物質受領日~使用日)
13.1.10. 取り扱い上の注意
マスク・手袋の着用
13.1.11. 残余被験物質の処理
すべて廃棄した。
13.2. 比較対照物質
13.2.1. 名称
和名:次亜塩素酸ナトリウム製剤
英名:Sodiumhypochlorite solution (formulation)
13.2.2. 商品名
和名:ピューラックス-10
英名:Purelox-10
13.2.3. 用途
医薬品
13.2.4. ロット番号
6511
13.2.5. 成分含量
13.2.5.1. 有効成分
次亜塩素酸ナトリウム 10%
13.2.5.2. その他成分
不明
13.2.6. 安定性
有効期限内指定条件下で安定
13.2.7. 物質の状態
13.2.7.1. 外観
淡黄色の透明な液体
13.2.7.2. 臭い
塩素臭
13.2.8. 有効期限
2018 年2 月
13.2.9. 保管条件
冷蔵,遮光,気密
13.2.9.1. 保管温度実測値および保管期間
- 3.1~7.5°C
- 2017 年5 月2 日~2017年6 月13 日(比較対照物質受領日~使用日)
13.2.10. 取り扱い上の注意
マスク・手袋の着用
13.2.11. 残余比較対照物質の処理
当該試験用に被験物質等管理責任者から配布された比較対照物質の残余は廃棄した。
14.1. 供試動物
14.1.1. 種
ウサギ
14.1.2. 系統[グレード]
ニュージーランドホワイト種(Kbl:NZW)[SPF]
14.1.3. 生産者
北山ラベス株式会社
14.1.4. 購入先
オリエンタル酵母工業株式会社
14.1.5. 試験系の選択理由
動物については、ガイドラインで推奨されている白色ウサギを選択した。系統については、この種の試験に汎用されているニュージーランドホワイト種を選択した。
14.1.6. 週齢
16 週齢の動物を購入し,17週齢時(体重範囲:2.89~3.20 kg)に被験物質を投与した。
14.1.7. 購入動物数
雌7 匹
14.1.8. 使用動物数
雌6 匹
14.2.1. 飼育環境
7-207 号飼育室[陽圧](W4.8 × D 10.3 × H 2.6 m)で動物を飼育し,その環境調節の基準値を次のとおりとした。
温度: 17~23°C(実測値:20.8~21.4°C)
湿度: 35~70%RH(実測値:50~67%RH)
換気回数: 8 回以上/h
照明: 12 時間(7時点灯,19 時消灯)
飼育ケージ(W62.2 × D 75.6 × H 46.2 cm)に動物を1 匹ずつ収容した。飼育ケージは隔週1 回,給餌器は週1 回の頻度で交換した。
14.2.2. 飼料
固型飼料(RC4,LotNo. 161111,オリエンタル酵母工業)を給餌器から自由に摂取させた。
使用した飼料中の汚染物質に関する検査結果(AR-16-JP-114796-01-JA)を製造元から入手し、その値が日本実験動物飼料協会案の許容基準値内であることを確認した。
14.2.3. 給水
水道水を自動給水ノズルから自由に摂取させた。
水道法に基づく水質検査を2017 年4 月に外部機関で行い,検査結果が上水道水質基準の基準値内であることを確認した(成績書No. K17-0031)。上述の水質検査とは別に,細菌検査(一般細菌および大腸菌検査)を2017年5,6 および7 月に安評センターで実施し、細菌が検出されていないことを確認した(第GT17-05号,第GT17-06号,第GT17-07号)。
動物搬入から投与前日の体重測定までを検疫期間とし、投与前までを馴化期間とした。
この間、一般状態を1 日1 回(土、日曜日を除く)観察し、体重を搬入時および投与前日(毛刈り前)に測定した。
北山ラベス株式会社が動物の耳介に記入した連続番号を動物番号(Animal ID No.)として使用し、動物番号を明記した動物識別カード(Animal ID カード)をケージに付けて動物を識別した。
投与の約24 時間前に、すべての動物の躯幹背部の被毛を電気バリカン(替刃0.1mm)で刈毛した。投与当日、いずれの動物にも検疫・馴化期間中の一般状態および体重推移に異常がないことを確認した。1 匹(動物番号5)の刈毛皮膚の投与を想定した部位に、傷または瘢痕が認められたため、当該動物を試験から除外(余剰動物)し、残りの6匹を試験動物として選択した。
余剰動物は、動物管理部門に移管した。
供試動物は、ペントバルビタールナトリウム過麻酔により安楽死させた。
14.7.1. 試験群の構成
14.7.2. 試験法の選択理由
亜塩素酸水の皮膚に対する刺激性はないとの情報から、試験ガイドラインに従い、合計3 匹のウサギに被験物質を4 時間暴露する方法を選択した。次亜塩素酸ナトリウム製剤においても、製品添付文書から腐食性を窺わせる記載はなかった。
提供された被験物質を、そのまま投与に用いた。
投与は、MICROMAN(モデルM1000,Gilson)を用いて被験物質0.5mL を、2.45 × 2.45cmのパッチ(リント布、長谷川綿行)のリント布面に均一に広げた後、紙絆創膏(KENZ)を用いて、動物の背部皮膚に貼付した。さらに、処置部位全体を大型リント布(長谷川綿行)で被覆し、粘着性包帯(ニューハレックス、長谷川綿行)で固定した。暴露時間は4時間とした。暴露終了後にパッチを除去し、投与部位を油性ペンで印すとともに、注射用水およびティッシュペーパーを用いて清拭した。
15.1. 皮膚反応の観察
パッチ除去後1、24、48および72 時間に投与部位の紅斑および痂皮形成ならびに浮腫について観察し、皮膚反応の判定基準(Draize[1]、1959)に従って採点した。パッチ除去後72時間に皮膚反応が認められない動物は、その時点で観察を終了した。パッチ除去後72 時間においても皮膚反応が認められる動物は、パッチ除去後14日を最長とし、翌日以降も回復するまで毎日1回観察した。
また、参考データとして全例の投与部位を、パッチ除去後24 時間の観察時にデジタルカメラを用いて写真撮影を行った。
皮膚反応の判定基準
皮膚反応以外の局所毒性および全身毒性症状について、皮膚反応観察と同じ頻度で観察した。
全供試動物について、投与日(投与前)および観察終了日に体重を測定した。
統計学的手法を用いた検定は、実施しなかった。
17.1. 皮膚反応の観察
17.1.1. 被験物質処置群(Appendix1-1、Photograph 1(図1))
観察期間中、いずれの動物の投与部位にも皮膚反応は観察されなかった。
17.1.2. 比較対照物質処置群(Appendix1-2、Photograph 2(図2))
パッチ除去後1 時間の観察から、評点1の紅斑および評点1 または2 の浮腫が3 例全例の投与部位に認められた。その後、これらの反応は増強し、パッチ除去後72 時間では紅斑および浮腫ともに評点3 を示した。パッチ除去後5日から浮腫は回復傾向を示したものの、パッチ除去後5 または7 日で2 例の紅斑は評点4 に増強した。パッチ除去後14 日においても、評点2 または3 の紅斑が全例に観察された。また、落屑がパッチ除去後5または6 日から観察され、うち1 例では瘢痕が9 日から認められた。パッチ除去後14 日においても、1 例では瘢痕、2 例では落屑が認められた。
観察期間中、いずれの動物にも異常は認められなかった。
すべての動物における体重推移は正常の範囲内であった。
17.4.1. 被験物質処置群(Table1-1)
パッチ除去後24、48および72 時間における各動物の紅斑/痂皮および浮腫の平均スコア値を算出した結果、いずれの例においても、両項目とも0.0 であった。
GHS 有害性区分(皮膚腐食性および皮膚刺激性)は、観察期間中に皮膚反応を示さず、算出された平均スコア値が、いずれの区分の下限値にも達しないことから、区分外に分類された。
17.4.2. 比較対照物質処置群(Table1-2)
皮膚反応の評点合計が最大となるパッチ除去後48、72 時間および4 日における各動物の紅斑/痂皮および浮腫の平均スコア値を算出した結果、紅斑/痂皮は3 例ともに3.0、浮腫は2.7ないし3.0 であった。
GHS 有害性区分(皮膚腐食性および皮膚刺激性)は、観察期間中に全例の皮膚(刺激性)反応が回復せず、1例では腐食性の反応と判断されるパッチ除去後14 日までに回復しない瘢痕が観察されたことから、区分1(腐食性)に分類された。
ウサギの皮膚に0.5mL の亜塩素酸水製剤または次亜塩素酸ナトリウム製剤を4 時間暴露し、皮膚に対する刺激性および腐食性を調べた。
[1] Draize JH. Dermaltoxicity. In: Appraisal of the safety of chemicals in foods, drugs and cosmetics,Association of food and drug officials of the United States; 1959: p.p. 46-53.
[2] UnitedNations. Globally harmonized system of classification and labelling of chemicals (GHS).Sixth revised edition, 2015.
(ウサギを用いる亜塩素酸水製剤の眼刺激性試験)
亜塩素酸水製剤の眼刺激性および重篤な損傷性を調べるため、Kbl:NZW ウサギ雌3匹を用いて眼刺激性試験を実施した。被験物質 0.1 mL を動物の右眼結膜嚢内に投与した。投与した眼における眼反応を、投与後1、24、48および72 時間に観察するとともに一般状態を観察し、加えて投与前および観察終了時に体重測定を行った。また、投与後24 時間の眼反応の観察と同時点に、角膜上皮の状態(損傷部位の有無)をフルオレセインナトリウム水溶液で染色して確認した。
ウサギを用いる亜塩素酸水製剤の眼刺激性試験
2. 試験目的
亜塩素酸水製剤の眼刺激性および重篤な損傷性を調べるため、ウサギを用いて眼刺激性試験を実施する。
3. 遵守したGLP
- 「医薬品の安全性に関する非臨床試験の実施の基準に関する省令」(平成9年3月26 日厚生省令第21 号)
4. 参照したガイドライン
- OECDGuideline for Testing of Chemicals 405 (2 October 2012: AcuteEyeIrritation/Corrosion)
5. 遵守した動物実験関連規則
当該試験は、「動物の愛護及び管理に関する法律」(昭和48年10月1日法律第105号、最終改正:平成26 年5 月30 日法律第46 号)および「実験動物の飼養及び保管並びに苦痛の軽減に関する基準」(平成18年4 月28 日環境省告示第88 号、最終改正:平成25 年8 月30 日環境省告示第84 号)を遵守して実施された。当該試験は安評センターの動物実験委員会により試験開始前に審査、承認されており(承認番号17-0031A)、安評センター「動物実験に関する指針」(2014年6 月2 日)に記載された動物倫理評価基準に従って実施された。
13.1. 名称
和名:亜塩素酸水製剤
英名:Chlorousacid water (formulation)
13.5.1. 有効成分
亜塩素酸 0.8%
13.5.1.1. 有効成分(実測値)
亜塩素酸水(総塩素量:HClO2 = 68.46)[%] 0.84
遊離塩素(HClO2 = 68.46)[mg/L] 448
13.5.2. その他成分
リン酸水素二カリウム
リン酸二水素カリウム
有効期限内指定条件下で安定
13.7.1. 外観
鮮やかな黄~薄い緑みの黄の透明な液体
13.7.2. 臭い
塩素臭
2018 年2 月7 日(製造後1 年)
冷蔵、遮光、気密
13.9.1. 保管温度実測値および保管期間
- 3.1~7.5°C
- 2017 年5 月2 日~2017年6 月13 日(被験物質受領日~使用日)
マスク・手袋の着用
すべて廃棄した.
14.1. 供試動物
14.1.1. 種
ウサギ
14.1.2. 系統[グレード]
ニュージーランドホワイト種(Kbl:NZW)[SPF]
14.1.3. 生産者
北山ラベス株式会社
14.1.4. 購入先
オリエンタル酵母工業株式会社
14.1.5. 試験系の選択理由
動物については、ガイドラインで推奨されている白色ウサギを選択した。系統については、この種の試験に汎用されているニュージーランドホワイト種を選択した。
14.1.6. 週齢
10 週齢の動物を購入し、被験物質を11週齢時(体重範囲:2.10~2.30 kg)に投与した。
14.1.7. 購入動物数
雌4 匹
14.1.8. 使用動物数
雌3 匹
14.2.1. 飼育環境
7-207 号飼育室[陽圧](W4.8 × D 10.3 × H 2.6 m)で動物を飼育し、その環境調節の基準値を次のとおりとした。
温度: 17~23°C(実測値:20.9~21.4°C)
湿度: 35~70%RH(実測値:50~67%RH)
換気回数: 8 回以上/h
照明: 12 時間(7時点灯、19 時消灯)
飼育ケージ(W62.2 × D 75.6 × H 46.2 cm)に動物を1 匹ずつ収容した。給餌器は週1回の頻度で交換した。
14.2.2. 飼料
固型飼料(RC4、LotNo. 161111、オリエンタル酵母工業)を給餌器から自由に摂取させた。
使用した飼料中の汚染物質に関する検査結果(AR-16-JP-114796-01-JA)を製造元から入手し、その値が日本実験動物飼料協会案の許容基準値内であることを確認した。
14.2.3. 給水
水道水を自動給水ノズルから自由に摂取させた。
水道法に基づく水質検査を2017 年4 月に外部機関で行い、検査結果が上水道水質基準の基準値内であることを確認した(成績書No. K17-0031)。上述の水質検査とは別に、細菌検査(一般細菌および大腸菌検査)を2017年5、6 および7 月に安評センターで実施し、細菌が検出されていないことを確認した(第GT17-05号、第GT17-06号、第GT17-07号)。
動物搬入から投与前日の体重測定までを検疫期間とし、投与前までを馴化期間とした。
この間一般状態を1日1 回(土、日曜日を除く)観察し、体重を搬入時および投与前日(角膜上皮の確認前)に測定した。
北山ラベス株式会社が動物の耳介に記入した連続番号を動物番号(Animal ID No.)として使用し、動物番号を明記した動物識別カード(Animal ID カード)をケージに付けて動物を識別した。
投与の約24 時間前に、すべての動物の両眼をフルオレセインナトリウム(LotNo.PDK5648、和光純薬工業)の2%水溶液(媒体:注射用水、Lot No. K6D73、大塚製薬工場)を用いて角膜における傷がないことを確認した。投与当日、いずれの動物にも検疫・馴化期間中の一般状態および体重推移に異常がないことを確認した。1匹(動物番号3)の投与を想定した眼に、結膜の発赤が確認されたため、当該動物を試験から除外(余剰動物)し、残りの3 匹を試験動物として選択した。
余剰動物は、動物管理部門に移管した。
供試動物は、ペントバルビタールナトリウム過麻酔により安楽死させた。
14.7.1. 試験群の構成
14.7.2. 試験法の選択理由
亜塩素酸水の眼に対する刺激性はないとの情報から、試験ガイドラインに従い、合計3 匹のウサギに被験物質を投与する方法を選択した。
提供された被験物質を、そのまま投与に用いた。
投与は、MICROMAN(モデルM100、Gilson)を用いて被験物質原液0.1mL を、動物の片側の眼の結膜嚢内に落とし込んだ。被験物質の損失を防ぐため、上下眼瞼を緩やかに合わせて約1 秒間保持した。被験物質を投与しない眼は、無処置対照眼とした。
15.1. 眼反応の観察
投与後1、24、48および72 時間に投与した眼の角膜、虹彩および結膜における反応を観察し、眼反応の判定基準(Draize[1]、1959)に従って採点した。角膜上皮の状態について、投与後24時間に、2%フルオレセインナトリウム水溶液を点眼し、生理食塩液で洗浄後、角膜の染色(損傷)範囲を観察した。また、参考データとして全例の投与した眼を、投与後24時間の観察時にデジタルカメラを用いて写真撮影を行った。
角膜 A 混濁の程度(最も濃い領域を評価する)
透明、混濁なし──────────────────────────0
散在性及び瀰漫性の混濁、虹彩ははっきり認められる─────────1
半透明で容易に識別可能、虹彩はやや不明瞭─────────────2
乳濁、虹彩の細部認めず、瞳孔の大きさがやっと認められる──────3
白濁、虹彩は認めない───────────────────────4
0<~1/4─────────────────────────────1
1/4~1/2─────────────────────────────2
1/2~3/4─────────────────────────────3
3/4~4/4─────────────────────────────4
正常───────────────────────────────0
正常以上のひだ、充血、腫脹、角膜周囲充血(いずれか一つ、または組合せ)、
多少とも対光反応あり───────────────────────1
対光反応なし、出血、著しい組織崩壊(いずれか一つ)────────2
血管は正常────────────────────────────0
正常より明らかに血管は充血────────────────────1
瀰漫性、深紅色で個々の血管は識別しにくい─────────────2
瀰漫性の牛肉様の赤色───────────────────────3
腫脹なし─────────────────────────────0
正常を超える腫脹(瞬膜を含む)──────────────────1
明らかな腫脹、眼瞼が少し外反───────────────────2
眼瞼が半分閉じる腫脹───────────────────────3
眼瞼が半分以上閉じる腫脹─────────────────────4
分泌物は認められない─────────────────────────0
正常より少し多い(正常動物の内眼角に観察される少量のものは含まない)─1
眼瞼とそのすぐ近くの被毛を濡らす程度の分泌物─────────────2
眼瞼と被毛、その周囲のかなりの部分を濡らす程度の分泌物────────3
眼反応以外の局所毒性および全身毒性症状について、眼反応観察と同じ頻度で観察した。
全供試動物について、投与日(投与前)および観察終了日に体重を測定した。
統計学的手法を用いた検定は、実施しなかった。
17.1. 眼反応の観察(Appendix1、2、Photograph 1(図3))
投与後1 時間の観察から、評点1の結膜発赤が3 例中2 例に認められた。観察された結膜発赤はパッチ除去後24 時間に回復を示した。以降、いずれの動物にも投与した眼に眼反応(刺激性反応)は観察されなかった。フルオレセインナトリウム水溶液を用いた角膜上皮における損傷(染色)部位の確認では、いずれの動物にも染色範囲は認められなかった。
観察期間中、いずれの動物にも異常は認められなかった。
すべての動物における体重推移は正常の範囲内であった。
投与後24、48および72 時間における各動物の角膜、虹彩、結膜発赤および浮腫の平均スコア値を算出した結果、角膜混濁、虹彩、結膜発赤および浮腫は3 例ともにいずれも0.0 であった。
ウサギの眼に0.1mL の亜塩素酸水製剤を投与し、眼に対する刺激性および重篤な損傷性を調べた。
[1] Draize JH.Dermal toxicity. In: Appraisal of the safety of chemicals in foods, drugs and cosmetics,Association of food and drug officials of the United States; 1959: p.p. 46-53.
[2] UnitedNations. Globally harmonized system of classification and labelling ofchemicals (GHS). Sixth revised edition, 2015.
(モルモットを用いる亜塩素酸水製剤の皮膚感作性試験(Maximization Test)
モルモットを用いる亜塩素酸水製剤の皮膚感作性試験(Maximization Test)
2. 試験目的
モルモットを用いてMaximization 法による皮膚感作性試験を実施し、亜塩素酸水製剤の皮膚感作性に関する情報を得ることを目的とする。
3. 遵守したGLP
- 「医薬品の安全性に関する非臨床試験の実施の基準に関する省令」(平成9年3月26 日厚生省令第21 号)
4. 参照したガイドライン
- 医薬品の製造(輸入)承認申請に必要な毒性試験ガイドラインについて(平成元年9月11 日薬審1 第24 号)
- OECDGuideline for Testing of Chemicals 406 (17th July 1992: Skin Sensitization)
5. 遵守した動物実験関連規則
当該試験は、「動物の愛護及び管理に関する法律」(昭和48年10月1日法律第105号、最終改正:平成26 年5 月30 日法律第46 号)および「実験動物の飼養及び保管並びに苦痛の軽減に関する基準」(平成18年4 月28 日環境省告示第88 号、最終改正:平成25 年8 月30 日環境省告示第84 号)を遵守して実施された。当該試験は安評センターの動物実験委員会により試験開始前に審査、承認されており(承認番号17-0038A)、安評センター「動物実験に関する指針」(2014年6 月2 日)に記載された動物倫理評価基準に従って実施された。
[Dayの定義]
感作処置開始日をDay0と定め、その前日をDay-1とした。
13.1. 被験物質
13.1.1. 名称
和名:亜塩素酸水製剤
英名:Chlorousacid water (formulation)
13.1.5. 成分含量
13.1.5.1. 有効成分
亜塩素酸 0.8%
13.1.5.1.1. 有効成分(実測値)
亜塩素酸水(総塩素量:HClO2 = 68.46)[%] 0.84
遊離塩素(HClO2 = 68.46)[mg/L] 448
13.1.5.2. その他成分
リン酸水素二カリウム
リン酸二水素カリウム
13.1.6. 安定性
有効期限内指定条件下で安定
13.1.7. 物質の状態
13.1.7.1. 外観
鮮やかな黄~薄い緑みの黄の透明な液体
13.1.7.2. 臭い
塩素臭
13.1.8. 有効期限
2018 年2 月7 日(製造後1年)
13.1.9. 保管条件
冷蔵、遮光、気密
13.1.9.1. 保管温度実測値および保管期間
- 3.1~7.5°C
- 2017 年5 月2 日~2017年7 月11 日(被験物質受領日~最終使用日)
13.1.10. 取り扱い上の注意
マスク・手袋の着用
13.1.11. 残余被験物質の処理
被験物質等管理責任者に返却後、廃棄した。
感作性試験において広く使用されており、ガイドラインに例示されているα-Hexylcinnamaldehyde(HCA)を陽性対照物質に選択した。
13.2.1. 名称
α-Hexylcinnamaldehyde
13.2.2. 略称
HCA
13.2.3. 製造元
和光純薬工業株式会社
13.2.4. ロット番号
SAF6701
13.2.5. CAS No.
101-86-0
13.2.6. 物質の状態
液体
13.2.7. 保管条件
室温(許容温度:1~30°C)
13.2.8. 取り扱い上の注意
マスク・手袋の着用
14.1. 供試動物
14.1.1. 種
モルモット
14.1.2. 系統[グレード]
Slc:Hartley[SPF]
14.1.3. 生産者
日本エスエルシー株式会社
14.1.4. 試験系の選択理由
試験ガイドラインで推奨されているモルモットを選択した。系統は、既知化学物質に対する感受性、遺伝的安定性等を考慮して、Slc:Hartley 系を選択した。
14.1.5. 週齢
6 週齢の動物を購入し、7 週齢時(体重範囲:384~452g)に投与を開始した。
14.1.6. 購入動物数
雌22 匹
14.1.7. 使用動物数
雌20 匹
14.2.1. 飼育環境
7-201 号飼育室[陽圧](W6.4 × D 10.3 × H 2.6 m)で動物を飼育し、その環境調節の基準値を次のとおりとした。
温度: 20~26°C(実測値:22.8~23.3°C)
湿度: 35~70%RH(実測値:48~61%RH)
換気回数: 12 回以上/h
照明: 12 時間(7時点灯、19 時消灯)
水洗式飼育機(東洋理工)を使用し、アルミ製前面・床ステンレス製網目飼育ケージ(W 29.1 × D 26.3 × H 18.0 cm)に動物を1 匹ずつ収容した。飼育ケージは隔週1 回、給餌器は週1 回の頻度で取り換えた。
14.2.2. 飼料
動物には、固型飼料(RC4、Lot No. 161111、170404、オリエンタル酵母工業)を給餌器から自由に摂取させた。
飼料中の汚染物質に関する分析成績書( 第AR-16-JP-114796-01-JA 号、 第AR-17-JP-004057-01-JA 号)を製造元から入手し、その値が日本実験動物飼料協会案の許容基準値内であることを確認した。
14.2.3. 給水
動物には、水道水を自動給水ノズルから自由に摂取させた。
水道法に基づく水質検査を2017 年4 月に外部機関で行い、検査結果が上水道水質基準の基準値内であることを確認した(成績書No. K17-0031)。上述の水質検査とは別に、細菌検査(一般細菌および大腸菌検査)を2017年6、7 および8 月に安評センターで実施し、細菌が検出されていないことを確認した(第GT17-06号、第GT17-07号、第GT17-08号)。
動物搬入から感作処置開始前までを検疫および馴化期間とした。
検疫・馴化期間中は、動物の一般状態を毎日1 回(土、日曜日を除く)観察するとともに試験環境に馴化させた。また、搬入時および感作処置開始前(検疫・馴化期間終了時)に体重を測定した。これらの観察・測定において、いずれの動物にも異常は認められなかった。
群分けは、Day0(感作処置開始日)に行った。
動物の識別は、動物入荷時に油性ペンを用いて耳介に連続番号(動物番号)を記入し、動物番号を明記した動物識別カード(ID カード)をケージに付した。また、群分け後には、動物番号および試験群を明記したラベルをケージに付けて動物を識別した。
余剰動物は、動物管理部門に移管した。
供試動物は、炭酸ガス吸入法で安楽死させた。
14.7.1. 試験群の構成
FCA:Freund'scomplete adjuvant
―:パッチのみを処置した。
14.7.2. 濃度設定理由
被験物質の処置濃度は、予備試験[試験番号H520( 697-003 )](GLP 非適用)の結果に基づき設定した。予備試験において、0.1、0.2、0.5、1、2、5、10、20および50w/v%(媒体:蒸留水)の計9 濃度の被験物質液を1 匹の動物にそれぞれ0.1 mL ずつ2 ヵ所に皮内注射した結果、投与後24 時間において、0.5w/v%以上の濃度では投与部位に腐食性の反応(投与部位の白斑または痂皮形成)が認められた。0.2 w/v%の投与部位では評点2、0.1 w/v%の投与部位では評点1または2 の皮膚反応が観察された。また、被験物質の4、20 w/v%(媒体:蒸留水)および100%(原液)の計3 濃度を2 匹の動物に24 時間閉塞貼付した結果、パッチ除去後24時間において、100%の貼付部位に中等度の皮膚反応が認められ、20 w/v%以下の貼付部位に皮膚反応は観察されなかった。皮内注射および閉塞貼付した動物に、一般状態の異常は観察されなかった。
既知の皮膚感作性試験法の中で、試験ガイドラインで推奨されているMaximizationTest[1]を選択した。
投与液は用時調製とし、各投与当日に調製した.なお、投与液の分析は実施しなかった。
14.9.1. 感作処置1 回目(皮内注射)
14.9.1.1. 被験物質処置群
ルアーロック式ガラス注射筒を2 本準備し、1 本にFCA(Lot No. 6231897、DIFCO)5 mL を、もう1 本に同容量の蒸留水(注射用水、LotNo. K6D73、大塚製薬工場)をそれぞれ吸引し、金属製ジョイントで2 本の注射筒を接続した。2 本の注射筒のシリンダーを交互に押すことにより2 液を混和し、乳化物を作製した。
(2)0.2w/v%被験物質液
被験物質0.04g を秤量した。これに蒸留水(注射用水、Lot No. K6D73)を加えて撹拌し、20 mL に定容した。
(3)0.2w/v%被験物質・FCA 乳化物
被験物質0.04g を秤量した。これに蒸留水を加えて撹拌し、10 mL に定容した(0.4w/v%被験物質液)。ルアーロック式ガラス注射筒を2 本準備し、1 本に0.4w/v%被験物質液2 mL を、もう1 本に同容量のFCA をそれぞれ吸引後、金属製ジョイントで2 本の注射筒を接続した。2 本の注射筒のシリンダーを交互に押すことにより2液を混和し、乳化物を作製した。
(1)蒸留水・FCA乳化物
14.9.1.1.項の調製物を用いた。
(2)蒸留水
蒸留水を用いた。
(3)蒸留水・FCA乳化物
14.9.1.1.項の調製物を用いた。
(1)蒸留水・FCA乳化物
14.9.1.1.項の調製物を用いた。
(2)10w/v% HCA 液
HCA 0.3 g を秤量した。これにコーン油(LotNo. SAG4916、和光純薬工業)を加えて撹拌し、3 mL に定容した。
(3)10w/v% HCA・FCA 乳化物
HCA 0.2g を秤量した。これにFCA を加えて撹拌し、1 mL に定容した(20 w/v% HCA・FCA 混合液)。ルアーロック式ガラス注射筒を2 本準備し、1 本に20w/v% HCA・FCA混合液を、もう1 本に同容量の蒸留水をそれぞれ吸引し、金属製ジョイントで2 本の注射筒を接続した。2 本の注射筒のシリンダーを交互に押して2液を混和し、乳化物を作製した。
ドデシル硫酸ナトリウム(Lot No. SAG9168、和光純薬工業)1.0 g を秤取した。ワセリン(サンホワイトP-1、Lot No. 16F3、日興リカ)9.0g を添加後、スパーテルを用いて2 物質を均一なペースト状になるまで混合した。
14.9.3.1. 被験物質処置群(100%被験物質液)
被験物質の原液を用いた。
14.9.3.2. 陰性対照群
投与液は用いなかった。
14.9.3.3. 陽性対照群(100% HCA 液)
HCA 原液を用いた。
14.9.4.1. 被験物質処置群および陰性対照群(20w/v%被験物質液)
被験物質2 g を秤量した。これに蒸留水(注射用水、LotNo. K6D73)を加えて撹拌し、10 mL に定容した。
14.9.4.2. 陽性対照群および陰性対照群(10w/v% HCA 液)
HCA 0.3g を秤量した。これに流動パラフィン(Lot No. 816186、吉田製薬)を加えて撹拌し、3 mL に定容した。
電気バリカンおよびシェーバーを用いて動物の胸背部を除毛した。除毛部に2 × 4 cmの投与区画(イメージ1、(1)~(3)で囲まれた部位)を油性ペンで印すことにより設けた。
調製した各試験群の投与液(1)~(3)(14.9.1.項)がイメージ1 の投与部位(1)~(3)に対応するよう、0.1 mL ずつ皮内注射した。
14.10.2. 10%ドデシル硫酸ナトリウム混和物の開放塗布(Day7)
Day 7 に、電気バリカンおよびシェーバーを用いて動物の胸背部(イメージ1、(4)の部位)を除毛した。被験物質処置群および陰性対照群の同部位に10%ドデシル硫酸ナトリウム混和物(14.9.2.項)を薄く均一に開放塗布した。
14.10.3. 感作処置2 回目(Day8~10)
片面をサージカルテープ(幅2 インチ、BlendermTM、3M)で被覆した2 × 4 cm のろ紙に、ピペット(MICROMAN(登録商標)、モデルM1000、Gilson)を用いて、各試験群の投与液(14.9.3.項)0.2mL を均一に塗布した。このパッチを、各試験群の投与部位に対応するよう、投与区画(イメージ1、(4)の部位)に貼付した後、サージカルテープ(幅2 インチ、TransporeTM、3M)で固定した。陰性対照群についてはろ紙のみを貼付し、同様にサージカルテープで固定した。48時間閉塞貼付後、このパッチを除去した。
14.10.4. 惹起処置(Day22~23)
電気バリカンおよびシェーバーを用いて、動物の腹背部(イメージ1、(5)(6)の部位)を除毛した。片面をサージカルテープ(幅2 インチ、BlendermTM、3M)で被覆した2 × 2 cmのろ紙に、ピペット(MICROMAN(登録商標)、モデルM100、Gilson)を用いて、各試験群の投与液(14.9.4.項)0.1mL を均一に塗布した。このパッチを各試験群の投与部位に対応するよう、投与区画(イメージ1、(5)(6)の部位)に貼付した後、サージカルテープ(幅2 インチ、TransporeTM、3M)で固定した。24時間閉塞貼付後、パッチを除去し、惹起処置部位を油性ペンで印した。惹起処置部位に残存した被験物質は、蒸留水およびティッシュペーパーを用いて取り除いた。
15.1. 皮膚反応の観察
惹起処置のパッチ除去後24 および48 時間に惹起処置部位を観察し、次の皮膚反応判定基準に従って皮膚反応の程度を点数化した。また、参考データとして各群の代表例における惹起処置部位を、パッチ除去後24時間の観察時にデジタルカメラを用いて写真撮影を行った。
観察期間中(Day0~25)、感作処置部位の皮膚反応を含む一般状態について、毎日1回(土、日曜日を除く)観察した。
感作処置開始前(Day0)および惹起処置部位の観察終了日(Day 25)に体重を測定した。
惹起処置部位について、皮膚反応の発現率をそれぞれ算出した。
統計学的手法を用いた検定は実施しなかった。
17.1. 皮膚反応の観察(Appendix1、Photograph 1~4(図4~図7))
被験物質を処置した惹起処置部位の観察では、いずれの動物も皮膚反応は示さなかった。一方、陽性対照物質の惹起処置部位の観察で、陽性対照群の5 例全例に評点3 の皮膚反応が認められ、陰性対照群ではいずれの動物も皮膚反応は示さなかった。
すべての動物で、FCAおよび被験物質または陽性対照物質の刺激性によると考えられる皮内注射部位の紅斑/浮腫がDay 1 以降、痂皮形成がDay 4 またはDay 7 以降に認められた。また、ドデシル硫酸ナトリウム処置または陽性対照物質処置によると考えられる閉塞貼付(感作処置2回目)部位の紅斑/浮腫がDay 8 またはDay 10 以降に認められ、その後、痂皮形成または落屑が散見された。
すべての動物の観察終了時の体重が、感作開始時(Day 0)より増加した。
皮膚反応の観察の結果から、被験物質処置群および陽性対照群の皮膚感作率は、それぞれ0%および100%と算出された。被験物質のGHS 有害性区分(皮膚感作性)は、算出された皮膚感作率がいずれの区分の下限値に達しなかったため、区分外とした。また、陽性対照群では皮膚感作率が30%以上であったことから、皮膚感作性が確認された。
亜塩素酸水製剤の皮膚感作性に関する情報を得るため、モルモットを用いてMaximization Test を実施した。
[1] MagnussonB, Kligman AM. The identification of contact allergens by animal assay. The guineapig maximization test. J Invest Dermatol 1969; 52: 268.
[2] UnitedNations. Globally harmonized system of classification and labelling ofchemicals (GHS). Sixth revised edition, 2015.
Claims (21)
- 亜塩素酸水を含む除菌液であって、該除菌液を直接動物に接触することにより該動物を除菌するものである除菌液。
- 前記接触がラビング法、スクラブ法またはベースン法により達成される、請求項1に記載の除菌液。
- 前記リン酸緩衝液が、2種類以上のリン酸塩を含む、請求項2に記載の除菌液。
- 前記リン酸緩衝液が、リン酸二水素カリウム、リン酸水素二カリウム、またはリン酸二水素ナトリウムのうちの2種類以上を含む、請求項2または3に記載の除菌液。
- リン酸二水素カリウムが0.68%~13.61%であり、リン酸二水素ナトリウムが0.60%~12.00%である、請求項4に記載の除菌液。
- リン酸二水素カリウムが1%であり、リン酸二水素ナトリウムが1%である、請求項4に記載の除菌液。
- リン酸二水素カリウムが0.68%~13.61%であり、リン酸水素二カリウムが0.87%~17.42%である、請求項4に記載の除菌液。
- リン酸二水素カリウムが1%であり、リン酸水素二カリウムが1%である、請求4に記載の除菌液。
- 前記動物が生きた動物である、請求項1~8のいずれか1項に記載の除菌液。
- 前記動物が、動物の表面を含む、請求項1~9のいずれか1項に記載の除菌液。
- 前記動物の表面が、皮膚である、請求項10に記載の除菌液。
- 前記動物の表面が、手指である、請求項11に記載の除菌液。
- 前記動物が、人体を含む、請求項1~12のいずれか1項に記載の除菌液。
- 前記除菌が、食品の準備においてなされる、請求項1~13のいずれか1項に記載の除菌液。
- 亜塩素酸が10ppm~60,000ppmで使用される、請求項1~14のいずれか1項に記載の除菌液。
- 亜塩素酸が200ppm~8,000ppmで使用される、請求項1~15のいずれか1項に記載の除菌液。
- 亜塩素酸水の遊離塩素濃度が、0.25mg/L~1,500mg/Lである、請求項1~16のいずれか1項に記載の除菌液。
- 前記除菌が、ウイルス、細菌、および真核生物から選択される少なくとも1つを対象とする、請求項1~17のいずれか1項に記載の除菌液。
- 前記除菌液が、動物由来成分も、アルコール成分も、香料も含まない、請求項1~18のいずれか1項に記載の除菌液。
- ハラル対応手指用除菌液であって、亜塩素酸水1.00%、リン酸二水素ナトリウム1.00%、リン酸二水素カリウム1.00%およびイオン交換水97.00%を含み、亜塩素酸が400ppmであり、遊離塩素濃度が10mg/Lである、除菌液。
- ハラル対応手指用除菌液であって、亜塩素酸水20.00%、リン酸二水素カリウム1.00%、リン酸水素二カリウム1.00%およびイオン交換水78.00%を含み、亜塩素酸が8,000ppmであり、遊離塩素濃度が200mg/Lである、除菌液。
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| WO2025239363A1 (ja) * | 2024-05-14 | 2025-11-20 | 三慶株式会社 | 亜塩素酸水及びその主たる有効成分である亜塩素酸とその活性分子種である塩素過酸化ラジカルを液中で、かつ、常温で、高濃度並びに低濃度でより効率よく安定化させた亜塩素酸水製剤の製造方法 |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20220331467A1 (en) | 2022-10-20 |
| JP2024091855A (ja) | 2024-07-05 |
| EP4014980A4 (en) | 2023-05-10 |
| JPWO2021024485A1 (ja) | 2021-02-11 |
| EP4014980A1 (en) | 2022-06-22 |
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