Preparation method of cosmetic raw material from rice fermentation product filtrate

Abstract

The invention discloses a preparation method of a cosmetic raw material from a rice fermentation product filtrate, which comprises the following specific operation processes: filtering a rice fermentation product, removing solid impurities, further filtering and clarifying, adding alkali to adjust the pH value of a solution, filtering to remove colored substances, adding an adsorbent for decoloration, and filtering to remove the adsorbent. The rice fermentation product active substance solution is used as a cosmetic raw material. A rice fermentation product is filtered, decolorized, deodorized, sterilized and the like to obtain a solution which contains active substances and is low in chroma, transparent and uniform and stable in property. According to the product, no organic solvent is used in the production process, the content of active substances is high, less waste is generated, the process is stable, and the method is suitable for large-scale production.

Description

Technical Field

[0001] The invention belongs to the technical field of rice fermentation product processing, and particularly relates to a method for preparing a cosmetic raw material from a filtrate of a rice fermentation product. Background Art

[0002] The filtrate of rice fermentation products has many functions, including nutritional supplement, anti-oxidation, anti-inflammatory, tumor growth inhibition, blood sugar and blood lipid regulation, and improvement of digestive system function. These functions make the filtrate of rice fermentation products have broad application prospects in the fields of health care and medicine. At present, its main function in cosmetics and skin care products is antioxidant, whitening and removing spots. The risk factor is 1, which is relatively safe and can be used with confidence. It generally has no effect on pregnant women and is not acne-causing. The filtrate after rice fermentation has the function of film-forming and moisturizing, can help repair the barrier function of the dermal matrix, and can supplement its own filaggrin or underlying fibers to improve the skin.

[0003] The filtrate of rice fermentation products is usually dark in color and contains a large amount of active substances such as amino acids, polyphenols, flavonoids, etc. It also contains a large amount of solid suspended particles and pigments. The impurities and pigments are processed while retaining active substances such as amino acids, polyphenols, flavonoids, etc. to obtain a low-color and transparent solution, which is used in the cosmetics industry and has broad market application prospects. Summary of the invention

[0004] In view of the above problems, the object of the present invention is to provide a method for preparing a cosmetic raw material derived from the filtrate of rice fermentation product.

[0005] The specific technical solutions are as follows: A method for preparing a cosmetic raw material from a rice fermentation product filtrate, comprising the following steps: 1) Filter the rice fermentation product to remove solid impurities; 2) further filtering and clarifying the rice fermentation product filtrate from which solid impurities have been removed; 3) adding alkali to the clarified rice fermentation product filtrate to adjust the pH of the solution; 4) filtering the pH-adjusted rice fermentation product filtrate to remove colored matter; 5) adding an adsorbent to the filtrate of the rice fermentation product from which colored substances have been preliminarily removed for adsorption and decolorization, and then filtering to remove the adsorbent; 6) sterilizing and preserving the rice fermentation product from which the decolorization has been adsorbed and the decolorizing agent has been removed, thereby obtaining a rice fermentation product active substance solution as a cosmetic raw material.

[0006] Furthermore, the rice fermentation product in step 1) is the yellow water produced after the rice is fermented for liquor and the bottom pot water remaining after the alcohol is distilled from the rice fermentation.

[0007] Furthermore, the filter medium used for filtration includes filter paper, filter cloth, filter bag, filter membrane, roll membrane or adsorption membrane, and the filtering method is gravity filtration, pressure filtration, suction filtration or machine self-circulation filtration. The pore size of the filter medium in step 1) is 0.25-200 microns, the pore size of the filter medium in step 2) is 0.1-200 microns, the pore size of the filter medium in step 4) is 100-5000 Daltons, and the pore size of the filter medium in step 5) is 0.1-200 microns.

[0008] Furthermore, the temperature during the filtration process of step 1) is 5-50°C, the temperature during the filtration process of step 2) is 5-80°C, the temperature during the filtration process of step 4) is 5-80°C, the temperature of the adsorption decolorization in step 5) is 5-100°C, and the temperature of the filtration decolorizing agent is 5-80°C.

[0009] Furthermore, in step 3), the pH of the solution is adjusted to 4.0-10.0.

[0010] Furthermore, in step 5), the adsorbent is silica gel, molecular sieve, activated carbon or diatomaceous earth.

[0011] Furthermore, the amount of the adsorbent added is 0.01-10.0% of the mass of the rice fermentation product filtrate from which the colored substances are initially removed.

[0012] Furthermore, the sterilization temperature of step 6) is 40-120°C.

[0013] Furthermore, the active substance contained in the active substance solution of the rice fermentation product is a mixture of one or more of sarcosine, alanine, valine, leucine, isoleucine, proline, phenylalanine, tryptophan, methionine, glycine, serine, threonine, cysteine, tyrosine, asparagine, glutamine, lysine, arginine, histidine, polyphenols, flavonoids, aspartic acid and glutamic acid.

[0014] The beneficial effects of the present invention are: The present invention obtains a solution containing active substances, low chromaticity, transparent properties, uniformity and stability after filtering, decolorizing, deodorizing, sterilizing and other processes of the rice fermentation product. The product of the present invention does not involve the use of organic solvents in the production process, has a high content of active substances, generates less waste, has a stable process, and is suitable for large-scale production. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with specific embodiments, but the protection scope of the present invention is not limited thereto.

[0016] Example 1

[0017] The remaining bottom pot water after the alcohol is distilled from the rice fermentation in the liquor industry is filtered by gravity through a 50-micron filter bag at room temperature, and then filtered through a 0.45-micron filter membrane for suction filtration. The temperature is controlled at 25°C to obtain a clear dark brown liquid. 30% mass concentration of sodium hydroxide is added to adjust the pH to 5.7. A 2000D coiled membrane filtration equipment is used for machine self-circulation filtration. The temperature is controlled at 35°C to obtain a slightly yellowish clear liquid. 400-mesh activated carbon is added in an amount of 0.15% of the total liquid volume. After sealing and stirring at 60-65°C for 2h, a 1-micron filter bag is used for gravity filtration to obtain a product containing a small amount of activated carbon. Filter paper is then used for suction filtration at 60°C to obtain a clear and transparent liquid. The liquid is placed in a reactor and sealed and heated to boiling (about 100°C). The heating can be stopped and the temperature can be lowered to obtain a light yellow transparent solution. The sample is taken for detection of chromaticity 30 APHA, total nitrogen content greater than 500ppm, and polyphenol and flavonoid content greater than 200ppm.

[0018] Example 2

[0019] Yellow water from the liquor industry is filtered by gravity through a 100-micron filter bag at room temperature, and then filtered through a 0.25-micron filter membrane. The temperature is controlled at 25°C to obtain a clear light brown liquid. 30% sodium hydroxide is added to adjust the pH to 5.8. A 5000D coiled membrane filter equipment is used for self-circulation filtration. The temperature is controlled at 35°C to obtain a slightly yellowish clear liquid. Diatomaceous earth is added in an amount of 0.1% of the total liquid. After sealing and stirring at 60-65°C for 2h, a 0.5-micron filter bag is used for gravity filtration to obtain a product containing a small amount of diatomaceous earth. Filter paper is used for suction filtration at 60°C to obtain a clear and transparent liquid. The liquid is placed in a reactor and sealed and heated to boiling (about 100°C). The heating can be stopped and the temperature can be lowered to obtain a light yellow transparent solution. Samples are taken for detection of chromaticity 20 APHA, total nitrogen content greater than 300ppm, and polyphenol and flavonoid content greater than 150ppm.

[0020] Comparative Example 1

[0021] The remaining bottom pot water after the alcohol is distilled from the rice fermentation in the liquor industry is filtered by gravity through a 50-micron filter bag at room temperature, and then filtered through a 0.45-micron filter membrane for suction filtration. The temperature is controlled at 25°C to obtain a clear dark brown liquid. 30% mass concentration of sodium hydroxide is added to adjust the pH to 8.0. Self-circulation filtration is performed using a 2000D coiled membrane filtration equipment. The temperature is controlled at 35°C to obtain a yellow clear liquid. 200-mesh activated carbon is added in an amount of 0.05% of the total liquid volume. After sealing and stirring at 60-65°C for 2h, a 1-micron filter bag is used for gravity filtration to obtain a product containing a small amount of activated carbon. Filter paper is then used for suction filtration at 60°C to obtain a clear and transparent liquid. The liquid is placed in a reactor and sealed and heated to boiling (about 100°C). The heating can be stopped and the temperature can be lowered to obtain a dark yellow transparent solution. The sample is tested for chromaticity 120 APHA, total nitrogen content greater than 500ppm, and polyphenol and flavonoid content greater than 200ppm.

[0022] Comparative Example 2

[0023] The remaining bottom pot water after the alcohol is distilled from the rice fermentation in the liquor industry is filtered by gravity through a 50-micron filter bag at room temperature, and then filtered through a 0.45-micron filter membrane for suction filtration. The temperature is controlled at 25°C to obtain a clear dark brown liquid. 30% mass concentration of sodium hydroxide is added to adjust the pH to 8.0. 5000D coiled membrane filtration equipment is used for self-circulation filtration. The temperature is controlled at 35°C to obtain a yellow clear liquid. 200-mesh activated carbon is added in an amount of 0.15% of the total liquid. After sealing and stirring at 20-25°C for 2h, a 1-micron filter bag is used for gravity filtration to obtain a product containing a small amount of activated carbon. Filter paper is then used for suction filtration at 25°C to obtain a clear and transparent liquid. The liquid is placed in a reactor and sealed and heated to boiling (about 100°C). The heating can be stopped and the temperature can be lowered to obtain a dark yellow transparent solution. The sample is taken for detection of chromaticity 180 APHA, total nitrogen content greater than 1000ppm, and polyphenol and flavonoid content greater than 300ppm.

[0024] Comparative Example 3

[0025] Yellow water from the liquor industry is filtered by gravity through a 100-micron filter bag at room temperature, then filtered through a 0.25-micron filter membrane for suction filtration. The temperature is controlled at 25°C to obtain a clear light brown liquid. 30% sodium hydroxide is added to adjust the pH to 6.7. 1000D coiled membrane filtration equipment is used for self-circulation filtration. The temperature is controlled at 35°C to obtain a slightly yellowish clear liquid. Diatomaceous earth is added in an amount of 0.15% of the total liquid. After sealing and stirring at 60-65°C for 2h, a 0.5-micron filter bag is used for gravity filtration to obtain a product containing a small amount of diatomaceous earth. Filter paper is used for suction filtration at 60°C to obtain a clear and transparent liquid. The liquid is placed in a reactor and sealed and heated to boiling (about 100°C). The heating can be stopped and the temperature can be lowered to obtain a light yellow transparent solution. Samples are taken for detection of chromaticity 5 APHA, total nitrogen content is less than 100ppm, and polyphenol and flavonoid content is less than 20ppm.

[0026] Comparative Example 4

[0027] Yellow water from the liquor industry is filtered by gravity through a 100-micron filter bag at room temperature, then filtered through a 0.25-micron filter membrane for suction filtration. The temperature is controlled at 25°C to obtain a clear light brown liquid. 30% sodium hydroxide is added to adjust the pH to 6.9. 100D coiled membrane filtration equipment is used for self-circulation filtration. The temperature is controlled at 35°C to obtain a slightly yellowish clear liquid. Diatomaceous earth is added in an amount of 0.15% of the total liquid. After sealing and stirring at 30-35°C for 2h, a 0.5-micron filter bag is used for gravity filtration to obtain a product containing a small amount of diatomaceous earth. Filter paper is used for suction filtration at 35°C to obtain a clear and transparent liquid. The liquid is placed in a reactor and sealed and heated to boiling (about 100°C). The heating can be stopped and the temperature can be lowered to obtain a dark yellow transparent solution. The sample is taken for detection of the chromaticity of 155 APHA, the total nitrogen content is less than 50ppm, and the polyphenol and flavonoid contents are less than 5ppm.

[0028] in conclusion: By comparing Example 1 and Comparative Example 1, it can be seen that during adsorption decolorization, the pore size and addition amount of the adsorbent have a great influence on the color of the final product; By comparing Example 1 and Comparative Example 2, it can be seen that the selection of the pore size of the coiled membrane during self-circulation filtration and the selection of the temperature and pore size of the adsorbent during adsorption and decolorization will have a great influence on the color and active matter content of the final product; By comparing Example 2 with Comparative Examples 3 and 4, it can be seen that during self-circulation filtration, the selection of the pore size of the coiled membrane and the temperature and amount of adsorbent added during adsorption and decolorization will have a great influence on the color and active matter content of the final product.

Claims

1. A method for preparing a cosmetic raw material from a rice fermentation product filtrate, characterized in that: The steps include: 1) Filter the rice fermentation product to remove solid impurities; 2) further filtering and clarifying the rice fermentation product filtrate from which solid impurities have been removed; 3) adding alkali to the clarified rice fermentation product filtrate to adjust the pH of the solution; 4) filtering the pH-adjusted rice fermentation product filtrate to remove colored matter; 5) adding an adsorbent to the filtrate of the rice fermentation product from which colored substances have been preliminarily removed for adsorption and decolorization, and then filtering to remove the adsorbent; 6) sterilizing and preserving the rice fermentation product from which the decolorization has been adsorbed and the decolorizing agent has been removed, thereby obtaining a rice fermentation product active substance solution as a cosmetic raw material.

2. The method for preparing a cosmetic raw material derived from a rice fermentation product filtrate according to claim 1, characterized in that: The rice fermentation product in step 1) is the yellow water produced after rice fermentation in the liquor industry and the bottom pot water remaining after the alcohol is distilled from the rice fermentation.

3. The method for preparing a cosmetic raw material derived from a rice fermentation product filtrate according to claim 1, characterized in that: The filter media used for filtration include filter paper, filter cloth, filter bag, filter membrane, roll membrane or adsorption membrane. The filtering method is gravity filtration, filter pressure, suction filtration or machine self-circulation filtration. The pore size of the filter medium in step 1) is 0.25-200 microns, the pore size of the filter medium in step 2) is 0.1-200 microns, the pore size of the filter medium in step 4) is 100-5000 Daltons, and the pore size of the filter medium in step 5) is 0.1-200 microns.

4. The method for preparing a cosmetic raw material from a rice fermentation product filtrate according to claim 1, characterized in that: The temperature during the filtration process of step 1) is 5-50°C, the temperature during the filtration process of step 2) is 5-80°C, the temperature during the filtration process of step 4) is 5-80°C, the temperature of the adsorption decolorization in step 5) is 5-100°C, and the temperature of the filtration decolorizing agent is 5-80°C.

5. The method for preparing a cosmetic raw material from a rice fermentation product filtrate according to claim 1, characterized in that: Step 3) Adjust the solution pH to 4.0-10.

0.

6. The method for preparing a cosmetic raw material from a rice fermentation product filtrate according to claim 1, characterized in that: In step 5), the adsorbent is silica gel, molecular sieve, activated carbon or diatomaceous earth.

7. The method for preparing a cosmetic raw material from a rice fermentation product filtrate according to claim 6, characterized in that: The amount of the adsorbent added is 0.01-10.0% of the mass of the rice fermentation product filtrate from which the colored substances are initially removed.

8. The method for preparing a cosmetic raw material from a rice fermentation product filtrate according to claim 1, characterized in that: The sterilization temperature of step 6) is 40-120°C.

9. The method for preparing a cosmetic raw material from a rice fermentation product filtrate according to claim 2, characterized in that: The active substances contained in the active substance solution of the rice fermentation product are a mixture of one or more of sarcosine, alanine, valine, leucine, isoleucine, proline, phenylalanine, tryptophan, methionine, glycine, serine, threonine, cysteine, tyrosine, asparagine, glutamine, lysine, arginine, histidine, polyphenols, flavonoids, aspartic acid and glutamic acid.