Method for separating shell and meat of small crustacean

Abstract

The invention relates to a method for separating shell and meat of small crustacean, which comprises the following steps: performing heat-treatment on the small crustacean at the temperature of 50-150 DEG C for 0.5-15 minutes; then cooling the temperature of the small crustacean to a proper temperature, employing enzyme to perform enzymolysis on the small crustacean after heat treatment; then separating the shell and meat of the small crustacean through centrifuging, and respectively collecting the shell and meat. The method provided in the invention enables realization of continuous production, the shelling rate is high, the obtained small crustacean meat can be used for producing feeds or further producing high quality food, the shell can be used for producing chitosan and the like, and the method can be directly used for separating the shell and meat of the small crustacean which enables on-line processing in a fishing ship, and the method for separating shell and meat of small crustacean has good application prospect.

Description

technical field [0001] The invention belongs to the field of shell meat separation of aquatic products, in particular to a method for separating shell meat of small crustaceans. Background technique [0002] Krill belongs to the phylum Arthropoda, class Crustacea, and order Krillia. There are 85 species of krill in the world, of which only 7-8 species live in the Antarctic waters; the Antarctic krill (Euphausia Superba Dana) that lives in the Antarctic waters south of 50° south latitude is generally called Antarctic krill . Antarctic krill is one of the single species with the largest biomass and the most successful reproduction among multicellular organisms on the earth, and is a key link in the flow of energy and matter in the entire Southern Ocean ecosystem (Roger PH, Elizabeth HLL. The fishery on Antarctic krill defining an ecosystem approach to management[J].Reviews in Fisheries Science,2000,8(3):235-298), (Fan Wei, Wu Yumei, Chen Xuezhong, et al. Research progress on...

AI Technical Summary

Problems solved by technology

However, the latter method is only suitable for the separation of the head from the body of small crustaceans; the rest of the processing, including the cracking of the shrimp shells, the extraction of the meat, and the separation of the meat from other parts by other methods are not well implemented

Secondly, the repeated extraction and separation operations in the above methods will inevitably cause the loss of nutrients and affect the flavor and quality of the final product

In addition, these methods cannot achieve the separation of the liver and gastrointestinal tract of crustaceans, but also cannot improve the yield of meat; moreover, this technology is more suitable for dealing with larger individual crustaceans, not suitable for smaller individual crustaceans ( such as Antarctic krill)

In summary, the above methods are labor-intensive, complex and limit their productivity

These methods are only suitable for handling larger crustaceans, not small crustaceans such as Antarctic krill