JPH0222671B2 - - Google Patents

Description

[Detailed description of the invention]

[Technical Field] This invention relates to a deodorant that eliminates bad odors and foreign odors. [Background Art] Generally, the sources of bad odors and strange odors are factory smoke and waste liquid, cigarettes, human waste, kitchen waste, etc., and there are a wide variety of types of bad odors and strange odors. Particularly in homes, where rooms are often kept closed when air-conditioning equipment is in operation, countermeasures against these foul odors have become a major problem. There are four ways to eliminate such bad odors and strange odors: Sensory deodorization method: A method of masking bad odors and foreign odors using aromatic substances (fragrances, etc.). Physical deodorization method: A method of diluting and removing foreign odors through ventilation and diffusion, or a method of adsorbing odors using activated carbon, etc. Chemical deodorization method: A method of chemically reacting (neutralization, addition, condensation, oxidation, etc.) with malodor and off-flavor components to make them odorless. Biological deodorization method: A method that kills bacteria that cause spoilage, prevents spoilage, and prevents the occurrence of bad odors. The sensory deodorization method is a method that is mainly practiced in ordinary households, and it uses the scent of the deodorant itself to eliminate bad odors and foreign odors. However, with this method, it is difficult to balance the scent and odor, and the scent of deodorants has different tastes and can sometimes cause a feeling of disgust. It's hard to say. Although the physical method described above is widely used, there are problems in that it requires equipment, that the room temperature fluctuates, and that activated carbon does not have a long-lasting effect in adsorbing bad odors and off-flavor components. In addition, chemical deodorization methods are not common because it is extremely difficult to select substances that effectively react with a wide variety of malodorous components, and care must be taken in handling the chemicals used. Furthermore, the biological deodorizing method also requires equipment, and has the disadvantage of slow onset of effects, so that each deodorizing method currently has its own merits and demerits. In view of this current situation, the inventors devised and proceeded with the development of a deodorant that is odorless itself and does not require large-scale equipment, using active ingredients found in plants. During this period, it was found that the deodorizing effect varied depending on the target odor. [Purpose of the Invention] This invention was made in view of the above circumstances, and is a deodorizing agent that is odorless itself and does not require large-scale equipment, and which limits the target odor. The purpose of the present invention is to provide a deodorizing agent that exhibits a high deodorizing effect. [Disclosure of the Invention] The present invention is a deodorizing agent against trimethylamine, which uses as an active ingredient an extracted component extracted from at least one of the group consisting of Oxalis oxalis, Heutynia japonica, Japanese black pine, Sawtooth oak, Istanthus japonica, and Katsura. The gist of the deodorant is its characteristics. That is, the deodorizer according to the present invention uses leaves, bark, trees, stems, fruits, heartwood, etc. of at least one of the group consisting of Oxalis oleracea, Heutica oleracea, Japanese black pine, Sawtooth oak, Cyperus oleracea, and Katsura, for example, in water or It is obtained by extraction with a hydrophilic organic solvent or a combination thereof, and exhibits a particularly high deodorizing effect against trimethylamine, which is regulated by the Offensive Odor Prevention Law. This invention will be explained in detail below. The extraction solvent used in this invention is:
Water or a hydrophilic organic solvent is used. As the hydrophilic organic solvent, methanol, ethanol, acetone, etc. are used. The extraction method is not limited as long as it is an extraction method for removing odor components of the deodorant itself. For example, water, a hydrophilic organic solvent such as alcohols such as ethanol and methanol, and ketones such as methyl ethyl ketone and acetone are added to the raw material plant, and the active ingredients are thermally extracted using a Soxhlet extractor or the like. This extraction operation may be performed using a mixed solvent of these hydrophilic organic solvents and water. The extract obtained in this manner is subjected to a rotary evaporator or a vacuum dryer to remove water or a hydrophilic organic solvent, and the deodorizing active ingredient is obtained as a solid. Therefore, it may be used as a deodorant as it is, or it may be diluted. The obtained deodorants may be used alone or in combination. Note that the extraction is not a one-stage extraction as described above, and if necessary, odor components of the raw material plant may be eluted and removed using a hydrophobic organic solvent in advance. Alternatively, a steam distillation method may be used. The manner of use of the deodorant obtained in this way is not particularly limited, but it can be used in a solvent, spray type, impregnated into a carrier, powder, tablet, etc.
It is used for a wide variety of purposes, including molding into granules. When used as a liquid deodorant, the effective concentration of the deodorant solution is usually in the range of 0.25 to 5 wt%. Naturally, within this range, it can be said that the higher the concentration, the greater the effect and sustainability; however, beyond this range, the odor of the deodorant itself appears, and it tends to be unsuitable as a deodorant. Polyhydric alcohols such as glycerin and propylene glycol are usually used as additives in deodorant liquids to prevent the deodorant from scattering and to act as a preservative. This deodorizing component can also be used in solid form. In this case, the above deodorizing liquid may be mixed with a porous (or permeable) inorganic material such as unglazed china clay, the deodorizing component is adsorbed onto the surface of the carrier, and this is used by filling it into a container, etc. Alternatively, there are methods such as mixing it with gelatin and using it in a solid form. When used by adsorbing on the surface of a solid carrier,
The weight ratio of deodorant and carrier is (deodorant):(carrier)=10
A ratio of ~0.1:1 is desirable. The deodorizer manufactured in this manner is itself odorless and can effectively and quickly contribute to the deodorization of trimethylamine. The present invention will be explained below based on examples thereof. Example 1 Leaves of Oxalis japonica, Houtodyami, Japanese black pine, Sawtooth oak, Japanese witch hazel, and Katsura respectively
100 g of each was separately placed in an Erlenmeyer flask containing 500 ml of a mixed solvent of water and methanol (water: methanol = 1:9), and the mixture was refluxed at 50°C for 8 hours. The residue was filtered to obtain a filtrate, methanol was removed under reduced pressure, and the mixture was concentrated to dryness to obtain a solid. This was dissolved in a mixed solvent of water and ethanol (water:ethanol = 1:1) to obtain a 1 wt % deodorant solution. In order to examine the deodorizing effect of the deodorant, the following sensory test was conducted. That is, prepare 10 glass containers with airtight stoppers containing 200μ of an aqueous solution of 100ppm trimethylamine, add 200μ of each of the above 10 types of deodorant solutions, and seal the containers. 5 minutes later,
Based on the six odor levels shown in Table 1 below,
Ten panelists were asked to rate the odor. As a comparative example, the odor was also evaluated when the same amount of water was added instead of the deodorant. The results are shown in Table 2.

【table】

[Table] As can be seen from the table, the odor level was significantly reduced by adding the deodorant. Example 2 1 ml of the 1wt% deodorant solution obtained in Example 1 was
Add to a glass container with a tightly stopper containing 50μ of a 500ppm trimethylamine aqueous solution, seal tightly, and incubate at 30℃ for 20 minutes.
After standing for a minute, 2 ml of gas was collected from the head space of the container with a syringe, and the concentration of trimethylamine was measured by gas chromatography.
The detector used was FTD (alkaline thermal ionization detector). To examine the deodorizing effect, the concentration was determined when the same amount of water was added instead of the deodorant, and the odor removal rate was determined according to the following formula. For comparison, deodorants were produced using plants other than the raw material plant groups of the present invention described above in the same manner as in the examples, and odor removal rates were determined. These results are shown in Table 3. Odor removal rate (%) = X ₀ −X ₁ /X ₀ ×100 X ₀ : Concentration when water is added X ₁ : Concentration when deodorant is added

【table】

[Table] As can be seen from the table, all the deodorants achieved removal rates of 76% or more in the Examples of the present invention, demonstrating that they have an excellent deodorizing effect on trimethylamine. Example 3 Of the 1wt% deodorant solution obtained in Example 1, the same amounts of those extracted from Oxalis Oxalis, Oxalis Oxalis, and Oxalis were mixed and analyzed using a gas chromatograph in the same manner as in Example 2. The odor removal rate was determined. The results are shown in Table 4.

〔Effect of the invention〕

As seen above, in this invention, the specific plant is used as a deodorant raw material, and the components extracted from such raw materials are used as the deodorizing active ingredient, so the deodorant itself is odorless. , a deodorant that is not dangerous to the human body and can be used in any form can be obtained. That is, since this deodorant itself is odorless, it does not cause disgust in people due to its own odor unlike conventional deodorants, and does not require large-scale equipment. Moreover, a deodorizing agent that exhibits a high deodorizing effect against trimethylamine can be obtained.

Claims (1)

[Claims] 1. A deodorant against trimethylamine,
A deodorant characterized in that the active ingredient is an extracted component extracted from at least one of the group consisting of Oxalis oxalis, Houtocytalis, Japanese black pine, Sawtooth oak, Japanese witch hazel, and Katsura.