JPH04190772A - Alcohol absorbent for packaged food - Google Patents

Abstract

PURPOSE:To obtain the subject absorbent capable of quickly absorbing and removing residual alcohol, etc., in a packaging bag by combining a physical adsorptive reaction agent composed of a porous substance with a specific compound capable of forming an alcohol adduct. CONSTITUTION:The objective alcohol absorbent is composed of (A) a physical adsorptive reaction agent consisting of a porous substance such as zeolite or activated carbon and (B) a chemical absorptive reaction agent capable of forming an alcohol adduct and selected from a deliquescent inorganic salt (e.g. sodium chloride), an organic acid (e.g. adipic acid) and/or an organic acid salt (e.g. sodium adipate).

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention provides a method for eliminating residual alcohol in the packaging bag when a sterilizing alcohol solution is used for the purpose of sterilizing and preserving the freshness of food sealed in the packaging bag. This invention relates to an alcohol absorbent for packaged foods for absorbing alcohol liquid and evaporated alcohol gas.

<Conventional technology> Traditionally, most packaged foods, including processed seafood foods, raw foods, semi-dried foods, various side dishes, and confectionery, have been mixed with a freshness-preserving liquid for the purpose of sterilizing and preserving freshness. Alcohol solution is used.

However, when such sterilization treatment is carried out, alcohol content and alcohol odor remain in the packaging bag, causing discomfort when eating, changing the aroma, and deteriorating the taste.

<Problems to be Solved by the Invention> The present invention has been made in view of these conventional problems, and it is an object of the present invention to promptly absorb and remove the sterilizing alcohol liquid and evaporated alcohol gas remaining in the packaging bag. The purpose of this invention is to provide an alcohol absorbent for packaged foods that can be used to absorb alcohol.

<Means for Solving the Problems> The alcohol absorbent for the packaged food of the present invention that achieves the above purpose comprises a physical adsorption reactant made of a porous substance and a chemical absorption reactant capable of producing an alcohol adduct. It is characterized by consisting of one or more components selected from deliquescent inorganic salts, organic acids, and organic acid salts.

<Example> The present invention will be explained in detail below.

Among the absorbent raw materials used in the present invention, physical adsorption reactants include, for example, zeolite, sepiolite, vermiculite, loess, white clay, and kaolin.

Talc, bentonite, perlite, calcined or dried zeolite, diatomaceous earth, Oya stone, activated carbon, silica.

Porous substances such as alumina, light calcined magnesia, alumina silica, silica gel, silica alumina, anhydrous magnesium sulfate, synthetic aluminum silicate, calcined gypsum 9, etc., and chemical absorption reactants capable of producing alcohol adducts,
For example, sodium chloride.

Deliquescent inorganic salts such as calcium chloride, magnesium chloride, aluminum chloride, iron chloride, sodium chlorite, or citric acid and sodium salts, malic acid and sodium salts, tartaric acid and potassium salts.

Examples include mixtures of organic acids and organic acid salts such as fumaric acid and sodium salts, adipic acid and sodium salts, and the like.

The organic acids and organic acid salts as chemisorption reactants according to the present invention not only have the effect of preventing spoilage of food through the conventionally known bacteriostatic or bactericidal action, but also the ability to absorb alcohol due to the production of alcohol adducts. It is also intended for effectiveness. That is, organic acids and organic acid salts have characteristics such as those that are soluble in water but poorly soluble in ethanol, such as citric acid, and those that are soluble in ethanol but poorly soluble in water, such as fumaric acid. By using such organic acids and organic acid salts in an alcohol atmosphere, more effective sterilization and freshness preservation effects and alcohol absorption effects on foods can be exhibited.

The alcohol absorbent according to the present invention is used in an air permeable bag made of paper, a porous plastic film, or a laminate of paper and a porous plastic film, and when used, the alcohol absorbent is used in a bag with air permeability made of paper, a porous plastic film, or a laminate of paper and a porous plastic film. It can be used in the form of powder or coarse powder, and each component can be used alone or in a mixture of two or more.

Next, preferred embodiments of the present invention will be described, but the present invention is not limited to the following embodiments.

Example 1 In order to investigate the performance of the physical adsorption reactant as an alcohol absorbent, calcined gypsum and calcium sulfite were used.

Select a porous material such as granular calcined zeolite, granular sepiolite, finely powdered sepiolite, or sandy coconut shell activated carbon, and add 2 g each to a commercially available heat-sealable, breathable, water-repellent paper valve sheet for absorbent storage. The six types of alcohol absorbents mentioned above were prepared by storing them in bags. On the other hand, a plastic film bag with a high gas barrier property (thickness: 6
0μm KOP film), and the internal volume is 2.
A 00cc plastic tray was placed, and the cut surface on which 3cc of ethanol (-grade reagent, purity, 99.5%, specific gravity: approx. 0.8) was dropped was placed on the left end of the tray, and the alcohol absorbent prepared above was placed. It was fixed to the right end of the tray with double-sided tape, and the opening of the plastic film bag was sealed by heat sealing. Two specimens of each of these specimens were prepared, and the change in weight increase over time at room temperature (13° C. to 17° C.) was measured, and an experiment was conducted to compare the amount of ethanol absorbed. The results are shown in Table 1 in the attached sheet.

As is clear from the results of this experiment, the ethanol adsorption capacity of the six types of alcohol absorbents listed above was in the following order: granular calcined zeolite, sandy coconut shell activated carbon, granular sepiolite, powdered sepiolite, calcium sulfite, and calcined gypsum. Moreover, in each case, the first 10 days are better than the next 1.
The adsorption capacity was much lower than that for 3 days, indicating fast-acting properties.

Example 2 Calcined zeolite and sandy coconut shell activated carbon are used as physical adsorption reactants in an alcohol absorbent, calcium chloride dihydrate is used as a chemical absorption reactant, that is, an alcohol adduct-forming reactant of deliquescent inorganic salts, The chemical absorption reactant is 10%, 20%, 3% of the total amount of alcohol absorbent.
The content was adjusted to 3% by weight, and each component was blended as shown in the table below and mixed well.
In the same manner as above, an experiment was conducted to compare the amount of ethanol absorbed by the change in weight increase over time at room temperature (approximately 13°C to 17°C).

The results are shown in Table 2 below.

Table 2 From the above experimental results, the weight increase rate of test body A was 38.98% increase in 10 days, 5339% increase in 23 days, and the weight increase rate of test body B was 69.09% increase in 10 days. , an increase of 87.27% in 23 days, and the weight increase rate of test specimen C is 94.83% increase in 10 days and 112.07% increase in 23 days (both are averages of 2 samples), but in reality The weight of 3 cc of ethanol is about 2.4 g (because specific gravity: 0.8), and the maximum weight increase rate was for test specimen A:
Although the values should remain at 47.06%, B: 43.64%, and C: 41J8%, water absorption occurs due to the deliquescent property of the chemical absorption reactant (calcium chloride dihydrate), that is, the "deliquescent liquid dripping" phenomenon. Therefore, the numerical value of excessive weight increase was obtained.

In addition, as is clear from the items of the bag and the situation inside the bag in Table 2 above, the chemical absorption reactant (calcium chloride dihydrate)
It was found that the "deliquescence dripping" phenomenon increased in proportion to the amount of alcohol used, making it unusable as an alcohol absorbent.

Example 3 The blending ratio of powdered calcium chloride dihydrate as a chemical absorption reaction agent was set to 5% (parts by weight), and granular calcined zeolite and sandy activated carbon were used together as a physical absorption reaction agent, and each component was as shown in the table below. Create an alcohol absorbent by mixing as shown in
The alcohol absorbent was placed on the bottom of a tray placed in the same plastic film as in Example 1, and cut cotton on which 3 cc of ethanol had been dropped was placed in the center of the tray.
In the same manner as in Example 2, the amount of alcohol absorbed was measured by oral change in weight increase at room temperature (approximately 16°C to 23°C).
The deliquescent liquid dripping phenomenon was observed.

The results are shown in Table 3 below.

Table 3 As is clear from the results of this experiment, test specimen B absorbed more alcohol than test specimen A, and “deliquescence dripped”.
Good results were obtained without any phenomena.

Incidentally, regarding the amount of alcohol absorbed, the weight increase rate of test specimen A (average of 2 specimens) increased by 13.08% in 2 days, 1636% increase in 7 days, and the weight increase rate of specimen B (average of 2 specimens). ) increased by 1682% in 2 days and by 20% in 7 days.
The result was an increase of 0.09%.

Since the amount of ethanol added was 3 cc as in Example 2, the weight was approximately 2.4 g, and the test specimens A and B
In both cases, the maximum weight increase rate remains at 22.43%.

Therefore, the ethanol absorption rates of specimens A and B after 7 days were 72.94% for specimen A and 89.9% for specimen B.
57%, and it is understood that test specimen B has a higher alcohol absorption rate than test specimen A, and at the same time is an extremely excellent alcohol absorbent without the "deliquescent liquid dripping" phenomenon.

Example 4゜ Calcium chloride dihydrate as a chemical absorption reactant.

Using iron chloride hydrate, sodium chlorite + sodium percarbonate trihydrate, and using granular zeolite and sandy activated carbon as physical adsorption reagents, calcium chloride dihydrate was added to
% by weight and 10% by weight, iron chloride hydrate was set to 5% by weight, sodium chlorite was set to 9% by weight, and sodium percarbonate was 1% by weight, as shown in the table below. in the same manner as in Example 3 at room temperature (21°C).
The amount of alcohol absorbed was measured and the "deliquescence dripping" phenomenon was observed based on the oral change in weight increase at a temperature of ~25°C.

The results are shown in Table 4 below.

Table 4 As is clear from the results of this experiment, test specimen C9D,
Compared with test samples A and B, there was no major difference in the "deliquescent liquid dripping" phenomenon or alcohol absorption rate, but the packaging bag of the alcohol absorbent changed and a chlorine odor was generated, so it was practically It can be said that the use of is impossible.

As expected, calcium chloride dihydrate is the deliquescent substance.
It can be inferred that this is the most effective method based on the experimental results to date.

Example 5 As an alcohol absorbent, powdered calcium chloride dihydrate was added in an amount of 5% (about Log of the alcohol absorbent in the bag).
(wt%), the granules were adjusted to 20% (wt%), mixed as shown in Table 5 in the attached sheet, and two specimens of each of A to C were created in exactly the same manner as in Example 4. , normal temperature (21℃
The amount of alcohol absorbed was measured and the "deliquescence dripping" phenomenon was observed based on the change in weight increase over time at a temperature of ~25°C.

The results are shown in Table 6 below.

Table 6 Test specimen A was the only specimen in which alcohol solution remained on the tray in the pack on the third day after the start of the experiment. 7
After measuring the weight on the second day, no bag wetting due to the "deliquescence dripping" phenomenon could be confirmed, so 2 cc of ethanol was added. As is clear from the results of the experiment, after 13 days, the bag wetting phenomenon was observed in specimens B and C, and was slight in specimen A.

Incidentally, the average of the two samples of alcohol absorption rate after 7 days is
They were 70.83% for test piece A, 77.08% for test piece B, and 75.00% for test piece C, respectively.

Example 6゜ Calcium chloride dihydrate as an alcohol absorbent.

Lightly calcined magnesia, anhydrous magnesium sulfate, and synthetic aluminum silicate are used, and the compounding ratio (wt%) as shown in Appendix Table 7 is used.
) and prepared in the same manner as in Example 4.
- Place the test specimen of H under the tray, and place 3c directly on the tray.
Ethanol (c) was added dropwise using a pipette. Two specimens of each of these specimens were prepared and kept at room temperature (about 22°C to 26°C) for 2 days to check for the presence or absence of residual alcohol solution, and for 4 and 11 days to check for changes in the weight increase of the specimens over time. The measurement and the "deliquescence dripping" phenomenon after 11 days were observed.

The results are shown in Table 8 in the attached sheet.

From this experimental result, two days after the start of the experiment, test specimen A
, B, C, D, and H had no residual ethanol liquid, and test specimens E, F, and G had residual ethanol liquid, indicating that test specimens A, B, C, D, and H had good alcohol absorption ability. found. Moreover, from this observation result, the "deliquescent liquid dripping" phenomenon appeared only in test specimen A.

Example 7 Same as Example 6, using an aqueous freshness-preserving ethanol solution made by mixing a freshness-preserving liquid with a high-purity ethanol solution, which has been widely used for preserving the freshness of packaged foods. We conducted an experiment.

Adjustment of ethanol aqueous solution for freshness preservation Add 25 ml of tap water to 70 cc of ethanol solution with a purity of 99.5%.
cc and L-ascorbic acid as a freshness preserving agent.
．． 0g, dl-malic acid 1.0g, sorbic acid 1.0g.
0 g, respectively, to make an ethanol aqueous solution for keeping freshness.

Next, test specimen B was excellent in Example 6.

Example 6 except that alcohol absorbents similar to those in C and D were prepared according to the table below, and 4 cc of the freshness-preserving ethanol aqueous solution prepared above was dropped directly onto the plastic tray.
I did the same thing.

Prepare two specimens of each of these specimens and store them at room temperature (22-26°C
1) After 4 days of standing, the presence or absence of a residual alcohol solution, the oral change in weight increase of the test specimen after 4 days and 11 days, the "deliquescence dripping" phenomenon after 11 days, and the bag and I observed the situation inside the bag.

The results are shown in Table 9 below.

Table 9 Change in the weight increase of the ethanol aqueous absorbent over time From the results of this experiment, the reason why no residual ethanol aqueous solution was observed is that
There was only the 48th test specimen B after the start of the experiment. From the above results, it is inferred that the blended composition of test specimen B' is optimal.

Example 8 In order to solve the problem of removing the ethanol aqueous solution remaining in the bag and the organic acid odor for preserving freshness, dry powdered slaked lime was mixed with calcium chloride dihydrate and synthetic aluminum silicate. The ingredients were mixed according to the table below, and an experiment similar to Example 7 was conducted.

Three samples of each of these test specimens were prepared, and 3 cc of the freshness-preserving ethanol aqueous solution prepared in Example 7 was dropped directly onto a plastic tray, and left at room temperature (approximately 22 to 26 degrees Celsius) for 3 days and 7 days, respectively. 14 days later, weight measurement and presence or absence of residual liquid,
Removes alcohol and acid odors.

The nine bags and the conditions inside the bags were observed for the "deliquescence dripping" phenomenon.

The results are shown in Table 10 below.

Table 10: Daily change in weight increase of ethanol aqueous absorbent Note that the observation status for 3 days after the start of the experiment was that in the case of test specimen A, there was a lot of residual liquid, and there was an alcohol odor and an acid odor.

△) In the case of test specimen B, there was only a small amount of residual liquid.

Alcohol smell, sour smell left in 1 bag without leaving any residue ◎). Test specimen C
In the case of , there was a little residual liquid, alcohol odor, acid odor, and one bag had grooves (○). Furthermore, the observation results after 14 days also showed that test specimen B>C>A, and no change was observed in the condition of deterioration over time.

Regarding the blending ratio of each component, it is possible to use up to 95% by weight of the porous material as the base physical adsorption reactant, and the chemical absorption reactant capable of producing alcohol adducts. Although it is possible to use up to about 15% by weight of the total ingredients, it is necessary to change the blending ratio depending on the target packaged food and the raw materials used. That is, in the case of packaged foods with a high water content, in order to prevent the alcohol absorbent from getting wet due to the water content of the food, for example, 35% by weight of sandy activated carbon is added to 50% by weight of powdered calcined zeolite, and 2% calcium chloride is added. An alcohol absorbent may be prepared by mixing 5% by weight of aqueous salt and further adding 10% by weight of calcined magnesia to this mixture. In addition, in the case of packaged foods where aroma retention is important, porous adsorbents such as activated carbon that have aroma absorption properties should be avoided, and for example, 80% by weight of granular dry zeolite should be mixed with 10% by weight of calcium chloride dihydrate. Powdered slaked lime 1
The alcohol absorbent may be adjusted by adding 0% by weight.

In general, in the case of packaged foods with a low water content, 95% by weight of porous substances such as granular dry zeolite, sandy activated carbon, 2 granular sepiolite, etc. or a mixture of two or more types of porous substances are added to 5% by weight of calcium chloride dihydrate. You can adjust the alcohol absorbent by adding %.

<Effects of the Invention> The alcohol absorbent according to the present invention has the effect of removing acid odor, the effect of removing excess water, and the effect of preventing the "deliquescence dripping" phenomenon, even when used in combination with a freshness-preserving liquid using an organic acid. It can be said to be an extremely excellent alcohol absorbent, as it can eliminate all the accompanying disorders.

Claims (1)

[Claims] A physical adsorption reactant made of a porous material, a deliquescent inorganic salt capable of producing alcohol adducts as a chemical absorption reactant,
An alcohol absorbent for packaged foods characterized by comprising one or more components selected from organic acids and organic acid salts.