Ocean fish protein peptide and preparation method thereof

Abstract

The invention relates to ocean fish protein peptide and a preparation method thereof. The preparation method includes the following steps that (1) fresh ocean fish flesh is taken and rinsed with water to make fish paste through water addition; (2) ozone is injected into the fish paste for sterilization; (3) ginger juice and nutgall catechin are added into the fish paste, and then the mixture is subjected to enzymolysis to obtain enzymatic hydrolysate; (4) perlite is added into the enzymatic hydrolysate and stirred sufficiently, then filtering is performed, filtrate is taken to be subjected to centrifugal separation, and supernatant is taken to be subjected to follow-up concentrating and drying to obtain ocean fish protein peptide. By the utilization of the preparation method, substances of a stinking smell are effectively prevented from forming in the preparation process of the ocean fish protein peptide, the prepared ocean fish protein peptide product is stable in nature, will hardly generate the stinking smell in the storing process and is high in economic value, and the application field and range of the ocean fish protein peptide are expanded.

Description

Technical field [0001] The invention relates to the field of marine biological products and biotechnology processing, in particular to a marine fish protein peptide and a preparation method thereof. Background technique [0002] Marine fish resources are abundant, and the protein peptides prepared from them are an important functional base material, which is not only rich in nutrition, but also has various health care functions such as anti-tumor, anti-aging, enhancing body immunity, and anti-oxidation. At present, there is an increasing demand for marine fish protein peptides in the fields of food, health products, biomedicine and functional cosmetics. [0003] The traditional preparation process of fish protein peptides is to clean the fresh fish and remove the internal organs, and then use the fish meat to directly homogenize and enzymatically, and then obtain through the steps of solid-liquid separation, membrane separation, concentration and drying. The preparation process Th...

AI Technical Summary

Problems solved by technology

[0003] The traditional preparation process of fish protein peptides is to clean the fresh fish, remove the viscera, use the fish meat to directly homogenate and enzymatically hydrolyze, and then obtain it through solid-liquid separation, membrane separation, concentration and drying. The preparation process The obtained products often have a strong fishy smell, which will not only affect consumers' acceptance of products, but also significantly reduce their economic benefits

[0004] In order to solve the problem of fishy smell of fish protein peptide products, some existing technologies use fish skin, fish scales, etc. to prepare protein peptides. Although the fishy smell of the products thus obtained is reduced, the nutritional value is greatly reduced; Some technologies use techniques such as multiple enzymatic hydrolysis or column chromatography adsorption on the crude product after enzymatic hydrolysis to remove the fishy smell. This method not only easily causes the loss of nutrients, but also increases the processing difficulty and production of protein peptide products. cost, affecting its economic benefits