Technology for extracting chitin from shrimp and crab shells

Abstract

The invention relates to a technology for extracting chitin from shrimp and crab shells, which belongs to the technical field of chemical industry. The technology improves the prior technology for extracting the chitin from the shrimp and crab shells through a pickling tank and a soda boiling tank and can produce 1000kg of the chitin per day by washing and carrying out aeration in a decalcification kettle, being reacted with dilute hydrochloric acid, carrying out the aeration, adding soda liquid into a soda boiling kettle for heating and aeration, washing, carrying out the aeration and removing protein, ensure that the ignition residue is lower than 1% and fully achieve the requirements on foods and drugs. The technology is mostly used for producing health care products and can improve theutilization rate of acid-soda, be conducive to increasing the output and improving the product quality and be conductive to improving the enterprise efficiency.

Description

technical field [0001] The invention relates to a process for extracting chitin from shrimp and crab shells, which belongs to the technical field of chemical industry. Background technique [0002] Chitin, also known as chitin, chitin, chitin, etc., is a linear amino polysaccharide that maintains and protects the bodies of crustaceans and microorganisms. It is widely found in crustaceans such as crabs, shrimps, molluscs, insects, fungi, and seaweeds. And in the cell wall of higher plants, it is rich in resources and its output is second only to cellulose. It is the second largest organic substance in nature and the largest nitrogen-containing natural organic polymer except protein in nature. The annual biosynthesis amount in nature is about 10 billion tons . Since the discovery of chitin more than a century ago, people have carried out a lot of basic and applied research on this type of compound, revealing its application value in a series of fields such as food, beauty, te...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a process for extracting chitin from shrimp and crab shells, which overcomes the existing problems of low yield, poor quality and incomplete reaction in extracting chitin from shrimp and crab shells through pickling pools and soda boiling pools. The resulting quality is unstable, while acid-base raw materials and labor are wasted, and the cost is increased. The invention improves the utilization rate of acid-base, increases output and improves product quality, which is conducive to improving enterprise benefits