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Extraction method of rice protein peptide

A technology of a rice protein peptide and an extraction method, which is applied in the field of rice protein peptide extraction, can solve the problems of low purity of rice protein, complicated operation, inconvenient extraction, etc., and achieves the effects of low impurity content, simple removal method and convenient processing.

Inactive Publication Date: 2018-12-07
ANHUI SHUNXIN SHENGYUAN BIOLOGICAL FOOD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The nutritional value of rice protein is high, but the extraction is not convenient enough, the existing extraction method is complicated to operate, and the purity of the extracted rice protein is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for extracting rice protein peptides, comprising the following steps:

[0027] S1, first put the rice into water for stirring, the stirring time is 4 hours, the mass ratio of rice to water is 4-10, after the stirring is completed, carry out the filtering operation, and use clear water to wash the rice;

[0028] S2, grind the rice immediately after washing, and sieve after the grinding, the mesh number of the sieve is 500 mesh, and wet rice powder is obtained;

[0029] S3, put the wet rice powder into a freeze dryer for freeze-drying, and obtain dry rice powder after freeze-drying;

[0030] S4, put the dry rice powder into deionized water, the mass ratio of rice to water is 3-6, fully stir to obtain a mixed solution of rice powder and water;

[0031] S5. Add ammonia water to the mixed solution, adjust the pH of the solution to 8-9, so that the protein in the mixed solution is dissolved, filter the mixed solution, and take the filtrate;

[0032] S6. Heat the fi...

Embodiment 2

[0037] A method for extracting rice protein peptides, comprising the following steps:

[0038] S1, first put the rice into water for stirring, the stirring time is 1h, the mass ratio of rice to water is 1-10, after the stirring is completed, carry out the filtering operation, and use clear water to wash the rice;

[0039] S2, grind the rice immediately after washing, and sieve after the grinding, the mesh number of the sieve is 500 mesh, and wet rice powder is obtained;

[0040] S3, put the wet rice powder into a freeze dryer for freeze-drying, and obtain dry rice powder after freeze-drying;

[0041] S4, put the dried rice powder into deionized water, the mass ratio of rice to water is 1-6, fully stir to obtain a mixed solution of rice powder and water;

[0042] S5. Add ammonia water to the mixed solution, adjust the pH of the solution to 8-9, so that the protein in the mixed solution is dissolved, filter the mixed solution, and take the filtrate;

[0043] S6. Heat the filtr...

Embodiment 3

[0048] A method for extracting rice protein peptides, comprising the following steps:

[0049] S1, first put the rice into water for stirring, the stirring time is 2 hours, the mass ratio of rice to water is 2-10, after the stirring is completed, carry out the filtering operation, and use clear water to wash the rice;

[0050] S2, grind the rice immediately after washing, and sieve after the grinding, the mesh number of the sieve is 500 mesh, and wet rice powder is obtained;

[0051] S3, put the wet rice powder into a freeze dryer for freeze-drying, and obtain dry rice powder after freeze-drying;

[0052] S4, put the dried rice powder into deionized water, the mass ratio of rice to water is 2-6, fully stir to obtain a mixed solution of rice powder and water;

[0053] S5. Add ammonia water to the mixed solution, adjust the pH of the solution to 8-9, so that the protein in the mixed solution is dissolved, filter the mixed solution, and take the filtrate;

[0054] S6. Heat the ...

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PUM

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Abstract

The invention discloses an extraction method of rice protein peptide. The extraction method comprises the following steps of S1, firstly, putting rice in water, performing stirring, after stirring, performing filtering, and washing the rice with clean water; S2. after washing, immediately grinding the washed rice; S3, putting humid rice flour in a freeze dryer for freezing-drying treatment; S4, putting dried rice flour in deionized water, and performing sufficient stirring; S5, adding an ammonia solution to mixed liquid, regulating the pH to enable protein in the mixed liquid to dissolve, filtering the mixed liquid, and taking filtrate; S6, performing heat treatment on the filtrate; S7, cooling the solution in the S6, adding a hydrochloric acid solution, regulating the pH to enable proteinin the solution to precipitate, performing filtering, and performing washing to obtain rice protein; and S8, adding water and hydrolase to the rice protein, to obtain hydrolysate of the rice proteinpeptide, and performing spray drying so as to obtain the rice protein peptide.

Description

technical field [0001] The invention relates to the technical field of rice protein peptide purification, in particular to a method for extracting rice protein peptide. Background technique [0002] Rice is the finished product of paddy after cleaning, husking, rice milling, finishing and other processes. The cleaning process is to use appropriate equipment, through appropriate technological processes and proper operation methods, to remove all kinds of impurities mixed in the rice, so as to improve the quality of the finished rice, and to use magnets to remove iron nails and iron filings in the rice. To ensure production safety. The hulling process is to use a rubber roller huller or an emery huller to remove the chaff of the rice and separate the chaff from the brown rice. The rice milling process is to use a rice mill to grind and rub the brown rice to separate the cortex and endosperm, and then to brush the rice, remove the bran, crush the rice, and dry the rice, so th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23J3/34
CPCA23J3/346
Inventor 张榆敏
Owner ANHUI SHUNXIN SHENGYUAN BIOLOGICAL FOOD CO LTD
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