JPH06135819A - Method for preventing coloring of extract of fermented rice - Google Patents

Abstract

PURPOSE:To obtain a method for preventing coloring of extract of fermented rice excellent in warm bath effect and beautifying effect. CONSTITUTION:A method for preventing coloring of extract of fermented rice by adding an inorganic reducing agent and/or a sulfur-containing amino acid, etc., thereto and composition therefor. Thereby, coloring of extract of fermented rice colored with the lapse of time can be prevented.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a color preventive agent for fermented rice extract and a method therefor. More specifically, the present invention relates to a method for preventing coloration of a fermented rice extract which is excellent in a warm bath effect and a skin beautifying effect, and a fermented rice extract composition in which coloration is prevented.

[0002]

2. Description of the Related Art Whether or not modern people who live in a rapidly changing society are suitable for healing the fatigue of their hearts and bodies, or whether they are consistent with nature from the beginning. ing. Even if it is said to be a hot spring, its efficacy varies depending on the components contained in the hot spring, pH, and radioactivity. Common effects include fatigue recovery, chronic arthritis, etc. It can be said that it is suitable for people to change their mood and recover their physical strength.
In addition, there are some effects such as beautiful skin, which attracts the attention of young women.

Bath salts have recently become popular as a way to easily enjoy the feeling of this hot spring at home. A variety of products have been commercialized, including those containing inorganic salts, those that generate carbon dioxide gas when placed in hot water, and those that are mixed with crude drug extracts to take advantage of the natural orientation from the beginning. In particular, as a recent tendency, in addition to the above-mentioned ingredients, many have been aimed at the effect of relaxation due to their fragrance and beautiful color, and are becoming popular among young people. It can be said that the market is full of products for consumers of all ages. However, none of the hot bath effects and skin beautifying effects, which are the original purpose of the bath agent, are quite satisfactory, and it is the current situation that more effective ones are desired.

[0004] As a representative example of a product having a skin-beautifying effect, cosmetics can be mentioned. However, because of the increasing number of people with allergies such as atopic dermatitis, in recent years, a moisturizing effect and a whitening effect have been achieved. Not only the strength of the effect, but also those who want less irritation are strong, lotions such as cucumbers, hechima, and extracts extracted from the fruits of citrus plants are popular, and also here, Nature orientation is growing.

Japanese Unexamined Patent Publication No. 63-264511 discloses a method for producing cosmetics and bath salts from rice. That is, the brown rice is applied to a rice-polishing machine to remove the red bran portion, and then the refined white is further raised to separate and collect the rice bran portion.After steaming this rice bran, saccharification and fermentation with koji or starch degrading enzyme and sake mother or yeast It is a method for producing cosmetics and bath salts from rice, which is characterized in that a liquid substance is obtained as it is or after being subjected to roughening or squeezing filtration after being carried out simultaneously or separately. The fermented rice extract obtained by such a method is excellent in a warm bath effect and has a beautiful skin effect such as moisturizing the skin, and thus is suitable as a bathing agent and cosmetics and is widely used.

[0006]

However, since the fermented rice extract obtained by the method disclosed in the publication shows coloring over time, cosmetics and hot baths which are expected to have skin-conditioning and skin-beautifying effects. In addition to the effect and skin beautifying effect, it is not preferable because of the property of bath products for relaxation purposes, where aesthetics are important. In particular, this coloring is remarkable in a heated state, and therefore, it was the most difficult point to overcome when commercializing it as a bathing agent. Therefore, various attempts have been made so far to prevent coloration, but a method for obtaining favorable results has not yet been found, and at the final stage of the process, activated carbon is added to the fermented rice extract with a low degree of coloration. It only remains to get. However, with this method, even if a fermented rice extract with a low degree of coloring is obtained, the effect of preventing coloration over time is not sufficient.

[0007] Conventionally, not only for fermented rice extract but also for coloring of substances, various preventions have been suggested as meaning reduction of commercial value when the substance is made into a product and deterioration of quality due to decomposition of the substance. Methods are being considered.

For example, Japanese Patent Application Laid-Open No. 1-9946 discloses a method of adding a porphyrin-zinc complex and an organic reducing agent in order to prevent coloring of polyphenol having an astringent / smoothing effect. In addition, JP-A-1-9015
No. 7 discloses a method for preventing coloring of diethylaminoethanol, which is useful as a coating material or a raw material for medicines, by using a metal hydride compound as a reducing agent.

However, it goes without saying that it is difficult for these coloring prevention methods to obtain the effect of expecting that the object to be colored is different.

[0010]

In view of the above situation, the inventors of the present invention have earnestly studied a method for preventing coloration of fermented rice extract over time.

As a result, they have found that the desired object can be achieved by adding an inorganic reducing agent, a sulfur-containing amino acid or a peptide containing a sulfur-containing amino acid as an amino acid residue to a fermented rice extract, and completed the present invention. Therefore, the present invention provides a method for preventing coloration of fermented rice extract and a composition of fermented rice extract to which a colorant is added.

The method for preventing coloration of fermented rice extract according to the present invention is an extremely easy operation of dissolving an inorganic reducing agent, a sulfur-containing amino acid or a peptide containing a sulfur-containing amino acid as an amino acid residue in the fermented rice extract, It is possible to obtain the effect of. The optimum concentration of the above coloring inhibitor added to fermented rice extract is 0.005-0.5%.
And more preferably 0.01 to 0.3%.

As the inorganic reducing agent which can be used in the above-mentioned method, any of those which can be usually used as an inorganic reducing agent can be used. However, sulfites such as sodium sulfite, potassium sulfite and calcium sulfite, sodium hydrogen sulfite,
Potassium hydrogen sulfite, hydrogen sulfite such as ammonium hydrogen sulfite, hyposulfite such as sodium hyposulfite, hypochlorite such as sodium hypochlorite, potassium hypochlorite, etc. are most suitable for the purpose of the present invention. Exerts a desirable effect. Of course, even one of these inorganic reducing agents exerts an effect, but even if two or more of them are added, a coloring preventing effect is exhibited, and they are included in the method of the present invention.

The sulfur-containing amino acids include those having an SH group such as cysteine, acetylcysteine, and homocysteine, and peptides such as glutathione having these sulfur-containing amino acids as amino acid residues are also included in the present invention.
A peptide having three amino acid residues is preferable. Further, the sulfur-containing amino acid or the sulfur-containing amino acid as the amino acid residue of the peptide according to the compound of the present invention most preferably has a free thiol group. In the present invention, one of these sulfur-containing amino acids or peptides having sulfur-containing amino acids as amino acid residues is effective even if added to the fermented rice extract. , Included in the method of the present invention.

In the present invention, one or more inorganic reducing agents alone or only one or more sulfur-containing amino acids or peptides having sulfur-containing amino acids as amino acid residues are added as a coloring preventing agent. Alternatively, the addition of these two anti-coloring agents can exert the anti-coloring effect.

Furthermore, the present invention provides a composition comprising a fermented rice extract and the above-described color preventive agent.

The composition according to the present invention can be obtained by dissolving an inorganic reducing agent and / or a sulfur-containing amino acid or a peptide having a sulfur-containing amino acid as an amino acid residue in a fermented rice extract by a conventional method. Moreover, you may add a fragrance | flavor, an antimold agent, a coloring agent, etc. to this composition as needed.

[0018]

In order to demonstrate the effect of the present invention, an experimental example will be shown below.

Experimental example Effect of preventing coloration of fermented rice extract by heat harshness test

1. Experimental method The fermented rice extract obtained by the above method was dissolved in polyethylene hydrogenated castor oil 50, and cysteine, acetyl cysteine, glutathione, sodium hyposulfite, cysteine +
Acetyl cysteine was added respectively. The initial value of the transmittance of the solution and the transmittance after storage at 60 ° C. for 3 days were set to 640 nm.
It was measured at.

2. Results Table 1 shows the results.

[0022]

[Table 1]

From the above experimental examples, it was clarified that the present invention has a coloring preventing effect on the fermented rice extract. Therefore, the present invention is useful for preventing coloration of fermented rice extract that is excellent in hot bath effect and skin beautifying effect.

Further, since the anti-coloring agent according to the present invention is highly safe, it can be said that it is also useful in this sense when considering the use of the fermented rice extract.

Examples of the present invention will be given below, but it goes without saying that the present invention is not limited to these.

[0026]

【Example】

Example 1

[Table 1]

A perfume was added to the fermented rice extract, and it was solubilized and dissolved in polyethylene hydrogenated castor oil 50, and cysteine and a pigment were added to this solution.

Examples 2 to 5 were carried out in the same manner as above.

Example 2

[Table 2]

Example 3

[Table 3]

Example 4

[Table 4]

Example 5

[Table 5]

Claims (10)

[Claims] 1. A method for preventing coloration of fermented rice extract, which comprises adding one or more substances selected from inorganic reducing agents. 2. A method for preventing discoloration of fermented rice extract, which comprises adding one or more substances selected from sulfur-containing amino acids or peptides having sulfur-containing amino acids as amino acid residues. 3. A fermented rice extract containing an inorganic reducing agent and / or one or more substances selected from sulfur-containing amino acids or peptides having sulfur-containing amino acids as amino acid residues. Coloring prevention method. 4. An inorganic reducing agent is sulfite, bisulfite,
4. A sulfite salt or a hypochlorite salt.
A method for preventing coloration of a fermented rice extract as described. 5. The sulfur-containing amino acid or the peptide having a sulfur-containing amino acid as an amino acid residue is cysteine, acetylcysteine or glutathione.
A method for preventing coloration of a fermented rice extract as described. 6. A composition comprising one or more substances selected from among inorganic reducing agents and a fermented rice extract. 7. A composition comprising a fermented rice extract and one or more substances selected from sulfur-containing amino acids or peptides having sulfur-containing amino acids as amino acid residues. 8. A composition comprising a fermented rice extract and an inorganic reducing agent and / or one or more substances selected from sulfur-containing amino acids or peptides having sulfur-containing amino acids as amino acid residues. 9. An inorganic reducing agent is sulfite, bisulfite,
It is hyposulfite or hypochlorite, The claim 6 or 8
The composition as described. 10. The composition according to claim 7, wherein the sulfur-containing amino acid or the peptide having a sulfur-containing amino acid as an amino acid residue is cysteine, acetylcysteine or glutathione.