Method for preparing glucosamine and chitin simultaneously by using of shrimp and crab waste

Abstract

The invention relates to the reuse of shrimp and crab waste, specifically a method for simultaneously producing shrimp and crab xanthin and chitosan by using shrimp and crab waste, using the synergistic effect of Bacillus subtilis and Gluconobacter oxydans to add glucose to ferment Shrimp and crab skin and crab head are desalinated and deproteinized, and then fermented by Streptococcus thermophilus, Lactobacillus acidophilus, and Lactobacillus bulgaricus for one week to decalcify and decolorize, use chitin deacetylase to treat chitin, and use leather Glucosamine can be obtained by processing Plasmomonas Shigella, a lambs negative bacteria. During the fermentation process, there is no need to add a large amount of acid and alkali, which reduces environmental pollution, and microbial fermentation saves costs compared with enzyme fermentation, and the content of active ingredients obtained is higher, which realizes the complete utilization of active ingredients of raw materials, and is economically feasible.

Description

technical field [0001] The invention relates to the reuse of shrimp and crab waste, specifically a method for simultaneously producing glucosamine and chitin from shrimp and crab waste, that is, using microbial collaborative fermentation technology to simultaneously extract active substance glucosamine from shrimp and crab waste , Chitin method. Background technique [0002] The output of shrimp and crab in our country is very high and exported to foreign markets. During the eating and processing of fresh shrimp and crab, the head and shell are mainly discarded, and the lack of full utilization results in a great waste of nutrients in shrimp and crab shells and shrimp and crab heads. It also increases the burden on the environment. Shrimp and crab heads and shells are rich in chitin, amino acids, unsaturated fatty acids, minerals and various trace elements. At present, many countries in the world are focusing on developing this resource. [0003] Production of chitin and it...

AI Technical Summary

Problems solved by technology

In the process of this patent, enzymes are used for many times in production, and the cost of enzyme preparations is expensive, which is not suitable for large-scale industrial production. The microbial reproduction ability is strong, the cost is low, and the yield is high. The advantages are obvious