Device for extracting active peptide from marine fresh fish and preparation method of active peptide

Abstract

The invention belongs to the technical field of active peptides, and particularly discloses a device for extracting active peptides from marine fresh fish and a preparation method of the active peptide. The device comprises a raw material pretreatment system, wherein the raw material pretreatment system comprises a degreased fish protein pretreatment system and / or a fish soluble extract pretreatment system; and the device also comprises an enzymolysis system which is used for performing enzymolysis on degreased fish protein and / or fish soluble extract, and a separating and drying system whichis used for separating enzymatic hydrolysate, and a solid phase obtained by separating and drying is dried to obtain hydrolyzed protein. Separated liquid is fed into a decoloration and enzyme deactivation system, decoloration liquid subjected to decoloration and enzyme deactivation treatment is fed into a membrane separation system, an active peptide solution intercepted by membrane separation isfed into a triple-effect concentration system for high-vacuum concentration and deodorization, and a material discharged from the triple-effect concentration system is fed for sterilization and spraydrying to obtain a peptide powder finished product. Degreased and desalted fish soluble extract and degreased fish meal are used as raw materials, so that protein in marine fish bodies can be utilizedto the maximum extent, and more active peptides can be obtained.

Description

technical field [0001] The invention belongs to the technical field of active peptides, and in particular relates to a device for extracting active peptides from fresh marine fish and a preparation method thereof. Background technique [0002] New use value can be created by enzymatically hydrolyzing animal and plant proteins such as fish with relatively low edible value to extract small molecule active peptides or directly applying the enzymatic hydrolyzate of these proteins and adding them to food. Due to the many excellent properties of active protein peptides, it has shown attractive application prospects in the fields of food, medicine, and daily chemical industry in recent years. Especially as people pay more and more attention to natural products, their potential market prospects are very broad. At present, the production of small peptides mostly uses fish bones, fish meat or fish skin of tilapia, sturgeon, etc. as raw materials, which only uses part of the fish prot...

AI Technical Summary

Problems solved by technology

The current peptide production equipment is basically an intermittent and miniaturized production line, and the increase in production is greatly restricted.

Proteolysis has a time limit. Intermittent production is likely to cause material retention in equipment and pipelines. In order to avoid the impact of deteriorated protein on the product, equipment and pipelines must be cleaned frequently, which will waste a lot of water and generate a lot of waste water. Currently, active peptides The enzymatic hydrolysis time in production is generally 4-6 hours. The amino acid content of the obtained product is relatively high, and the product yield is relatively low. If only fish powder is used for enzymatic hydrolysis, the yield of peptide products is generally 10-20%. Mixed enzymatic hydrolysis of pulp, the yield of marine active peptides is 30-50%, how to intensively process the leftovers of low-value marine fish and fish with high edible value to obtain high-quality marine protein (active peptides), aquatic seasonings and other products , directly supply human consumption, which can provide an effective way to effectively make up for the shortage of terrestrial protein resources

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