Method for preparing micromolecular collagen peptide from fish scales by utilizing complex enzyme

Abstract

The invention discloses a method for preparing micromolecular collagen peptide from fish scales by utilizing complex enzyme. The method comprises the steps of deashing and degreasing fish scales used as raw materials; adding complex enzyme mixed by pepsin, papain and trypsin for hydrolyzing, inactivating the enzyme, carrying out coarse filtering, film filtering, vacuum concentrating and freeze drying to obtain the micromolecular collagen peptide. The collagen peptide has the average molecular weight of 500-1,000Da, can be absorbed and utilized by human bodies easily, can be applied to cosmetic, healthcare products, foods, beverages and other industries, and has remarkable economic effect and social effect.

Description

(1) Technical field

[0001] The invention relates to a method for preparing small molecule protein peptides, in particular to a method for preparing fish scale small molecule collagen peptides. (2) Technical background

[0002] Collagen is an important functional protein, which is closely related to cell proliferation, differentiation, exercise, immunity, joint lubrication, wound healing, etc. Due to the special functions of collagen, its extracts have been widely used in medicine, food, daily chemical industry, biosynthesis and other industrial fields, such as manufacturing pharmaceutical capsules, surgical materials, health food, lighting gelatin, cosmetics, etc. Collagen peptides, widely used in cosmetics, health products, food and beverages as additives, are derived from collagen. The collagen in fish scales is as high as 45%, which contains a large amount of glycine, proline, hydroxyproline, and hydroxylysine, among which hydroxyproline and hydroxylysine are rarely foun...

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