Method for extracting melanoidin from soybean paste residue cake

Abstract

The invention discloses a method for extracting melanoidin from a soybean paste residue cake, and belongs to the technical field of food processing. The method comprises the following steps that (1) the dried soybean paste residue cake is smashed, sieved and degreased; (2) a certain amount of alcohol solution is added to the degreased soybean paste residue cake, and mixed; a soybean paste residue cake mixed solution is obtained; and (3) the soybean paste residue cake mixed solution is subjected to ultrasonic-assisted extraction; an extracting solution is obtained; the extracting solution is subjected to centrifugal separation; a supernatant is obtained; the supernatant is subjected to vacuum concentration and freeze drying; and the melanoidin is obtained. The method takes the soybean paste residue cake as an extracting raw material, and the melanoidin is extracted by an ultrasonic-assisted alcohol method, so that pollution and resource waste are avoided, a waste material is fully used and recycled, and an additional value of a product is increased.

Description

technical field [0001] The invention belongs to the technical field of food processing, and mainly relates to a method for extracting melanin from soybean paste residue cake. Background technique [0002] Melanin is the final product of the Maillard reaction, a brown substance composed of irregular macromolecules, and exists in different ways, also known as melanoidin, widely distributed in the diet, such as coffee, cocoa, bread, Malt, honey, etc. are closely related to human beings. It is produced in the process of food cooking and production and processing. The formation of melanin can improve the color and flavor of food. Soybean sauce residue cake is the waste of soy sauce fermentation and hydraulic pressing. During the fermentation process, melanin is formed. Due to the high salt content of soybean paste cake, it is directly used as feed, and because of its high water content, it is easy to spoil and pollute the environment. In order to avoid pollution and make full u...

AI Technical Summary

Problems solved by technology

It is produced in the process of food cooking and production and processing. The formation of melanin can improve the color and flavor of food. Soybean sauce residue cake is the waste of soy sauce fermentation and hydraulic pressing. During the fermentation process, melanin is formed. Due to the high salt content of soybean paste cake, it is directly used as feed, and because of its high water content, it is easy to spoil and pollute the environment

Images