JPH07304655A - Bathing agent and its production - Google Patents

Abstract

PURPOSE:To provide a bathing agent containing a liquid produced by steeping whole soybean, skinned soybean or defatted soybean with water, giving moist and smooth skin after bathing, increasing the warmth-keeping effect, giving refreshing feeling after bathing and effective for preventing the dry skin and itchiness. CONSTITUTION:This bathing agent is prepared by immersing whole soybean, skinned soybean or defatted soybean in water of 5-100 deg.C for 5min to 20hr, removing the soybean and using the steeped liquid or its concentrate as an essential component. Preferably, the water extract contains 0.1-50g/100ml of the soluble sugar of soybean in terms of glucose and contains proteins, amino acids, oligosaccharides, saponins, isoflavones, vitamins, minerals and organic acids originated from soybean. It is produced preferably by grinding whole soybean, skinned soybean or defatted soybean together with water, heating the ground slurry, filtering the heated product, filtering the produced soya milk with an ultrafiltration membrane and using the filtrate or its concentrated liquid as an essential component.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath agent containing a soybean water extract and a method for producing the same.

[0002]

2. Description of the Related Art Bath agents are used to keep the body warmed by bathing, to recover from fatigue by promoting blood circulation, to relieve chills, to relieve skin irritation or to change the mood by scenting or coloring the bath water. It is developed and used for the purpose of promoting the effect.

Furthermore, in recent years, the development of bath salts has been developed in the direction of imparting an effect such as a heat retaining effect and the like as a handy body care agent for making the skin condition of the whole body healthy, and many additives are added. The use of is being considered.

For example, those having a heat retaining effect by polyhydric alcohols such as glycerin, those having a proteolytic enzyme added to enhance the cleaning effect, those having an oil added to soften the skin, herbal medicine extracts and vitamins There is a wide range of things such as blends. The above-mentioned bath agents have room for improvement in heat retention effect, moisturizing effect, refreshing feeling after bathing, or safety.

On the other hand, soybean glycosides have been confirmed to have various physiological actions, and a bathing agent containing a soybean-extracted phospholipid (Japanese Patent Laid-Open No. 3-58919) and a water extract of soybean hypocotyl are effective. A humectant as a component (JP-A-63-243013) and the like are known.

[0006]

All of these are focused on a specific component in soybean, and require complicated steps for separating the component. The present inventors have paid attention to the soybean soaking solution produced as a by-product during the production of tofu, and have made a study for the purpose of effective use of the soybean solution, and have surprisingly confirmed that the soaking solution itself is effective as a bathing agent.
It was also found that the filtrate produced as a by-product during ultrafiltration and concentration of soymilk and whey produced during the production of soybean protein isolate have similar effects. The present invention has been completed based on these findings, and the present invention will be specifically described below.

[0007]

The soybean water extract used in the present invention is an immersion liquid obtained by dipping whole soybeans, dehulled soybeans or defatted soybeans in water, and "whey produced as a by-product during the production of isolated soybean protein". Or a soy milk filtrate obtained by filtering it with an ultrafiltration membrane, and these components are composed of soy-derived sucrose, raffinose, stachyose, saponin, isoflavone, proteins, amino acids, vitamins, minerals, organic acids, etc. An example of the components of the filtrate when soy milk is filtered with an ultrafiltration membrane is as follows.

(1) oligosaccharide 1.23% (2) protein 0.35% (3) amino acid 0.04% (4) organic acid 0.30% (5) isoflavone 0.08% (6) saponin 0 0.01% (7) Lipid 0.05% or less (8) Vitamin 0.03% (9) Mineral 0.27%

The above components are obtained by the following analytical method. (1) High performance liquid chromatographic method (sucrose, stachyose, raffinose, etc.) (2) Total nitrogen amount by Kjeldahl method x 6.25 (3) Amino acid automatic analysis method and high performance liquid chromatographic method (arginine, lysine, histidine, Phenylalanine, tyrosine, leucine, isoleucine, methionine,
Amine, alanine, glycine, proline, glutamic acid, serine, threonine, aspartic acid, tryptophan, cystine, etc. (4) High performance liquid chromatography (citric acid, malic acid,
Acetic acid) (5) High-performance liquid chromatographic method (Daidzin, Genistin, Daidzein, Genistein, etc.) (6) High-performance liquid chromatographic method (Saponin A group, B group, etc.) (7) Soxhlet extraction method (8) High-performance liquid chromatograph Method and microorganism quantification method (B ₁ ,
B _2, B _6, H, niacin, pantothenic acid, inositol, etc.) (9) banner de molybdate absorptiometry, o- phenanthroline absorptiometry, atomic absorption spectroscopy (P, Fe, Ca,
Na, K, Mg, Zn, etc.) The soluble sugar content of this filtrate was measured by the phenol-sulfuric acid method to be 2.05% in terms of glucose.

As described above, the water extract of soybean used in the present invention comprehensively contains various components in soybean, and the bathing agent of the present invention uses only specific components among these components. The feature is that the extract is used as it is, not the one.

These water extracts have a soluble sugar content of 1
It is prepared so as to be up to 20%, and this product is used as it is or by blending various bases, fragrances, and coloring agents. Since these water extracts contain almost no oily component, generation of offensive odor due to oxidation of the oily component is extremely small, and the storage stability of the product is excellent.

The soluble sugar referred to herein is a water-soluble sugar (sucrose, raffinose, stachyose, saponin, isoflavone glycoside) which is eluted by immersion in water, grinding, etc., and is a phenol-sulfuric acid method (biochemical experiment method). ,
A. It is represented by a glucose conversion value obtained by a general analysis method, [A-1 Quantitative method for reducing sugars], University of Tokyo Press, published February 15, 1971).

That is, a sample (immersion water, a filtrate obtained by filtering soymilk with an ultrafiltration membrane, or soybean whey) is directly quantified by the phenol-sulfuric acid method, or the sample is treated with hydrochloric acid.
The pH is adjusted to 4.5, the protein is precipitated, centrifuged, and the sugar concentration of the supernatant is quantified by the phenol-sulfuric acid method to obtain the glucose amount.

The method for preparing a water extract from each raw material is as follows:
The method for producing the bath salt will be specifically described. For example, if the soaking liquid of dehulled soybeans is used as the raw material, whole soybeans of 70 to 3 are used.
When heated with hot air at 00 ° C and pressed with a roller, the cotyledon, hypocotyl and skin are separated, so the cotyledon is collected and used as dehulled soybean. This is immersed in water in an amount of 3 to 20 times the weight of soybean for 5 minutes to 20 hours.

The immersion temperature is 5 to 100 ° C., and if the immersion temperature is high, the immersion time can be shortened. The point is that it may be soaked under conditions that allow the water-soluble sugars in soybeans to be sufficiently extracted, but when using soaked soybeans as a raw material for tofu, soymilk drinks, etc., it is necessary to consider the elution of proteins as well, which is a preferable condition. For 20 to 30 ° C. for 8 to 20 hours, 40
~ 55 ° C for 1-6 hours, 70-90 ° C for 5-30
Minutes. By doing so, the soluble sugar content in the immersion water becomes 0.1 to 5%.

After soaking, the soybean and the soaking solution are separated, and this soaking solution is used as a raw material. When whole soybean is used as the raw material, it is the same as the dehulled soybean except that the soaking time is increased. The protein is eluted in this immersion liquid, and when it is made into a product, it causes turbidity, so it is preferable to remove it in advance. The protein can be removed by a method of lowering the pH of the immersion water to the isoelectric point of the protein to remove the precipitate, and a method of adding an acid may be used, but a method of lowering the pH by lactic acid fermentation is preferable. This is because the soybean smell can be alleviated by lactic acid fermentation.

For example, commercially available lactic acid bacteria Streptococcus thermophilus, Lactobacillus bulgaricus, etc. are added to the immersion water, and lactic acid fermentation is carried out at 20 to 45 ° C. for 2 to 20 hours to reach pH 5.0 to 5.5. The precipitate is removed by centrifugation to obtain a clear solution. This clear solution can be used as a bathing agent as it is, but if the concentration of the soluble sugar is low, the effect cannot be obtained unless it is added in a large amount to the bath water.
It is preferable to appropriately concentrate, for example, 45 to 65 ° C., 6
Concentrate under reduced pressure at 00-700 mmHg. For the purpose of antiseptic and antifungal, the concentrated solution is added with about 0.2% of sodium benzoate and filled in a container to prepare a bath salt product.

When the defatted soybean soaking solution is used as a raw material, the defatted soybean is kept at 20 to 30 ° C. for 2 to 3 hours and 40 to 55.
Immerse at 0.5 ° C. for 0.5 to 1 hour. In this case, in order to suppress the elution of the protein as much as possible, it is preferable to adjust the pH of the immersion water during immersion to 4 to 5 with an organic acid or an inorganic acid for immersion. Thereafter, the extract is obtained by treating in the same manner as in the case of dehulled soybeans.

When the filtrate obtained by ultrafiltration and concentration of soy milk is used as a raw material, soy milk obtained by the same method as in the production of tofu or soy milk drink from whole soybeans and dehulled soybeans has a molecular weight cutoff of 3 Concentrate with an ultrafiltration membrane of up to 300,000 and collect the filtrates generated at that time, and use this as it is or as a bathing agent. At this time, the filtrate may be subjected to lactic acid fermentation to be acidified to have a pH of about 5.0.

When whey produced as a by-product during the production of isolated soybean protein is used as a raw material, for example, 15 times amount of water is added to defatted soybean, the pH is adjusted to 7.5 with caustic soda, and the mixture is stirred at room temperature for 2 hours and then solidified. Insoluble matter (okara) is removed by liquid separation to obtain a protein-containing solution. After adjusting this to pH 4.5 with hydrochloric acid and precipitating the protein, solid-liquid separation is carried out into protein fraction (separated soybean protein) and whey, and this whey is used as it is or concentrated to prepare a bath salt.

The bathing agent of the present invention can optionally be mixed with fragrances and pigments used in ordinary bathing agents, inorganic salts, inorganic acids, crude drugs, vitamins, amino acids, enzymes and the like. In addition, when using this bath salt,
It may be added so that the soluble sugar content is 0.1 to 5.0 g, preferably 1.0 to 2.5 g per 0 L.

The bath agent thus obtained has effects such as that the skin becomes moist and smooth after bathing, the heat retention effect is increased, and the feeling of hot water is refreshing. It also has the effect of preventing dryness and itching of the skin.
After washing the hair, rinsing with hot water containing this bath additive also has the effect of preventing dandruff.

The water extract in the present invention is appropriately concentrated,
It can be used as an external preparation for the skin as it is or by mixing with an ointment base. Examples will be shown below.

[0024]

【Example】

Example 1 Whole soybean was heated with hot air at 75 ° C., pressed with a roller, and then dehulled to remove the rind and hypocotyl to obtain 20% dehulled soybean. Put the dehulled soybeans in 55 ° C warm water adjusted to pH 9 with alkali.
After immersion for a period of time, the immersion liquid was separated. The soluble sugar content of this immersion liquid was 0.99 g / 100 ml. This immersion liquid at 145 ° C.,
It was sterilized by heating for 30 seconds, cooled to 40 ° C., added with lactic acid bacteria (Streptococcus thermophilus, Lactobacillus bulgaricus), and lactic acid fermented at 40 ° C. until pH 5.0.

The supernatant obtained by centrifugation (3,000 rpm) after lactic acid fermentation was concentrated under reduced pressure at 650 mmHg and 60 ° C. to 1/4 volume. Sodium benzoate was added to this to a concentration of 0.2%, and the mixture was filtered to clarify, and filled in a container to give a bath salt product. The soluble sugar content in this product was 4.36 g / 100 ml.

Example of Use The above bath salts are used by men and women aged 10 to 70 for 7 days,
We listened to the impression after bathing and investigated. The method of use is to adjust the soluble sugar content in the bath water to 8-12 ppm,
About 30 ml was added per L for use. The results are shown in Table 1.

Table 1 Male teenagers Itching due to atopic skin roughness disappeared after bathing. Female in her twenties I had itchy skin and itching, and I used a over-the-counter drug, but it resolved. Female in her 20s: Itching after bathing has disappeared. The skin feels smooth. Women in their 30s The hot water feels moist. The skin was smooth. Women in their thirties The skin is smooth. I feel warm. Men in their thirties The skin is smooth. I feel warm. Women in their 40s Feel that water is clean and that the skin is dry. Female in her 40s Warms her body and sleeps well. Women in their 50s The hot water is soft. My face is slippery. My hair is shiny. Men in their 50s Refreshing after bathing. Moisturizes the skin. Warms well. Female in her 60s: Itching has disappeared after bathing. Female in her 70s: Itching after bathing has disappeared.

Example 2 Whole soybeans were heated with hot air at 75 ° C., pressed with a roller and dehulled to remove the skin and the hypocotyl, to obtain 20% dehulled soybeans. This dehulled soybean was ground while adding 10 times the amount of cold water (5 ° C.) to obtain Kure. This Kure was heated at 100 ° C. for 30 seconds, cooled to 80 ° C., and solid-liquid separated with a screw decanter. I got soy milk. The obtained soy milk is deaerated, sterilized by heating at 120 ° C. for 3 minutes, adjusted to a protein concentration of 5.0%, and then filtered through an ultrafiltration membrane having a molecular weight cutoff of 300,000 to obtain a low molecular weight fraction as a filtrate. Recovered. The soluble sugar content of this filtrate was 2.05 g / 100 ml. This was concentrated under reduced pressure so that the soluble sugar content became 20.0 g / 100 ml, and a fragrance (Yuzu Essence) and a coloring agent (Yellow No. 202) were added to this, and 0.3% benzoic acid soda was added.
To obtain a bath salt product. This bath salt also
The same effect as the bath salt of Example 1 was confirmed.

Example 3 Defatted soybean flakes were immersed in 15 times the amount of water at room temperature for 1 hour while adjusting the pH to 5.0 with lactic acid. After the immersion, it was filtered, and the filtrate was sterilized by heating at 140 ° C. for 1 minute. The soluble sugar content of this filtrate was 0.98 g / 100 ml. This was concentrated under reduced pressure to 1/4 amount, the concentrated liquid was filtered and clarified, and then sodium benzoate was added to 0.1%, and the mixture was filled in a container to obtain a bath salt product. The soluble sugar content of this product was 3.90 g / 100 ml.

Example 4 Whole soybeans were heated to 75 ° C. with hot air, dehulled, and biased. Degrease this with hexane, and add pH to the defatted soybeans with caustic soda.
After adding 15 times amount of water adjusted to 7.5 and stirring at room temperature for 2 hours, solid-liquid separation was performed to remove insoluble matter. The obtained protein-containing solution was adjusted to pH 4.5 with hydrochloric acid to precipitate the protein, and solid-liquid separation was performed again. Then, sodium benzoate was added to the remaining solution from which the protein fraction was removed so as to be 0.3%, and the solution was filled in a container to obtain a bath salt product. The soluble sugar content of this product was 0.93 g / 100 ml.

Claims (9)

[Claims] 1. A bathing agent containing an aqueous extract of soybean 2. The bath salt according to claim 1, wherein the water extract contains 0.1 to 50 g / 100 ml of soybean soluble sugar as a glucose conversion value. 3. The bath salt according to claim 1, wherein the aqueous extract contains soybean-derived protein, amino acid, oligosaccharide, saponin, isoflavone, vitamin, mineral and organic acid. 4. The bath salt according to claim 1, 2 or 3, wherein the water extract is a water soaking solution of whole soybean, dehulled soybean or defatted soybean. 5. The bath agent according to claim 1, 2 or 3, wherein the aqueous extract is a filtrate obtained by filtering soybean milk made from whole soybean, dehulled soybean or defatted soybean with an ultrafiltration membrane. 6. The bath salt according to claim 1, 2 or 3, wherein the water extract is whey used in the production of isolated soybean protein. 7. Whole soybeans, dehulled soybeans, or defatted soybeans in an amount of 5 to 1
A method for producing a bathing agent, which comprises soaking soybeans after soaking in water at 00 ° C for 5 minutes to 20 hours and containing the obtained soaking solution or an immersion solution obtained by concentrating the soaking solution. 8. A filtrate obtained by grinding whole soybeans, dehulled soybeans or defatted soybeans with water, heating the ground product after heating, filtering the obtained soymilk with an ultrafiltration membrane, or containing a filtrate obtained by concentrating this filtrate. A method for producing a bathing agent, characterized in that 9. A method for producing a bath salt, which comprises whey produced when producing isolated soybean protein by a conventional method or whey concentrated from this whey.