Extraction process for gamma-oryzanol and composite vitamin E nutrition components in rice bran

Abstract

The present invention discloses an extraction process for gamma-oryzanol and composite vitamin E nutrition components in rice bran, and belongs to the technical field of food industry. Cereal germ contained in rice bran is substantially complete and is not easily extracted. According to the present invention, rice bran grinded and screened with a 100-mesh sieve is adopted as a raw material so as to improve an extraction rate; small lipophilic molecules in soybean milk and the like dissolves like principle are utilized, and the soybean milk is adopted as a solvent to extract gamma-oryzanol and a composite vitamin E component in the rice bran powder; due to lipophilicity of the gamma-oryzanol and the composite vitamin E, the existing extraction technologies for the gamma-oryzanol and the composite vitamin E in the rice bran relate to organic solvents, and have disadvantages of complex process, no safety and no environmental protection; and in the extraction process of the present invention, the rice bran powder is adopted as the raw material, the soybean milk is adopted as the solvent, the process has characteristics of simpleness and low cost, the obtained extract is rich in nutritional components, and can be used in production of food, beverages and health products, the added value of the rice bran is substantially improved, and important significances are provided for comprehensive rice bran utilization and environment protection.

Description

technical field [0001] The invention belongs to the technical field of food industry, and relates to a process for extracting γ-oryzanols and complex vitamin E (Vitamin E) nutrients from rice bran. Background technique [0002] Rice bran generally accounts for 6% to 8% of the total weight of rice, but it contains 64% of the important nutrients of rice and more than 90% of the essential elements of the human body, including a large amount of sugar, fat, protein and vitamins. By-product resources with extensive development value have become a hot spot in the research and development of food, beverages and health products. Rice bran contains two special types of compounds: γ-oryzanol and compound natural vitamin E. A large number of studies have proved that these two special types of compounds are active natural compounds with development value. γ-Oryzanol is a unique kind of physiologically active substances in rice bran. γ-Oryzanol is an organic acid ester of triterpene alc...

AI Technical Summary

Problems solved by technology

[0003] Due to the lipophilicity of γ-oryzanol and vitamin E complex, the existing extraction processes of γ-oryzanol and vitamin E from rice bran all involve organic solvents, which have the disadvantages of complex process, high cost, unsafe and unfavorable for environmental protection

Grain germ contains high concentration of complex vitamin E and γ-oryzanol. In terms of raw material extraction, the existing extraction process does not crush the complete gluten germ in rice bran, which is not conducive to the extraction of gluten germ. Sufficient Extraction of Nutrient Components of γ-Oryzanol and Compound Vitamin E

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