Method for preparing black rice enzymatic hydrolysate and black rice polyphenol compound beverage

Abstract

The invention discloses a method for preparing black rice enzymatic hydrolysate. The preparing method comprises the following steps of, conducting extrusion expansion and grinding to black rice materials to prepare puffed black rice micro powder; adding the black rice micro powder with purified water to prepare puffed black rice paste; conducting liquidation to the puffed black rice paste by adopting alpha-amylase; after liquidation, conducting combined enzymolysis to the puffed black rice paste by cellulase and glucoamylase to prepare black rice enzymatic hydrolysate. Prepared black rice enzymatic hydrolysate helps not only with digestive absorption of black rice products but also with effective release and reservation of polyphenol substances black rice cortex. Prepared black rice enzymatic hydrolysate and an auxiliary material such as lycium barbarum juice are compounded into black rice polyphenol compound beverage respectively with the weight percentage of 60%-80% of black rice enzymatic hydrolysate and the weight percentage of 20%-40% of lycium barbarum juice, and black rice polyphenol and lycium barbarum polysaccharide are enriched in the black rice polyphenol compound beverage.

Description

technical field [0001] The invention relates to a method for preparing black rice nutrients, in particular to a method for preparing black rice enzymatic hydrolyzate rich in phenolic substances, and also relates to the black rice polyphenol compound drink. Background technique [0002] As the main resource of black food, black rice is not only nutritious but also has health benefits. Black rice is rich in protein, carbohydrates, vitamins, minerals and other nutrients, especially the cortex of black rice contains a large amount of polyphenol active substances such as anthocyanins, flavonoids and ferulic acid. Modern research has proved that black rice has anti-inflammatory properties. Oxidation, blood lipid lowering, anti-inflammation, anti-tumor, immune regulation, prevention of cardiovascular and cerebrovascular diseases and other biological activities, these biological activities are closely related to black rice polyphenols. [0003] Black rice has not been milled, and t...

AI Technical Summary

Problems solved by technology

At present, most of the black rice beverages on the market are made by adding a variety of food additives after black rice gelatinization. In the process of processing, they rely too much on additives, so that the flavor, nutrition and quality of black rice beverages cannot be improved.