Method for extracting fish collagen

A technology of fish collagen and extraction method, which is applied in the field of fish collagen extraction, can solve the problems of long operation time, pollution, low fat content, etc., and achieve the effect of less fat content, good water solubility and high purity
CN106967169AActive Publication Date: 2017-07-21GUANGDONG TIMES FOOD & LIFE HEALTH RES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGDONG TIMES FOOD & LIFE HEALTH RES CO LTD
Publication Date
2017-07-21

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Abstract

The invention relates to a method for extracting fish collagen, and belongs to the technical field of natural protein extraction. Through adoption of a fish collagen extracting process in which an organic solvent is not used, removal and separation of fat are achieved. The invention adopts the technical concept as follows: firstly, through grinding and homogenizing under an ultrasonic action, tissue cells of fish skin are completely broken, and during subsequent alkali treatment and enzymatic treatment, fat and protein can be more removed, so that a crude extract with low fat content can be obtained; then, a crude extract solution is enabled to pass through a resin bed obtained after lipophilic modification, so that the purpose of adsorbing low-content lipids is achieved. The prepared fish collagen has the advantages of high purity, low fat content and good water solubility.
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Description

technical field

[0001] The invention relates to a method for extracting fish collagen, belonging to the technical field of natural protein extraction. Background technique

[0002] Collagen is a white, opaque, unbranched, fibrous protein that plays the role of binding tissue in animal cells. Collagen is rich in 18 kinds of amino acids except tryptophan and cysteine, among which there are 7 kinds of amino acids necessary to maintain human growth. Glycine in collagen accounts for 30%, proline and hydroxyproline account for about 25%, which is the highest content in various proteins, and the content of alanine and glutamic acid is also relatively high. At the same time, it also contains hydroxyproline and pyroglutamic acid, which are rare in general proteins, and hydroxylysine, which hardly exists in other proteins. Therefore, collagen is very nutritious. Fish collagen is mainly extracted from tilapia, cod fresh skin and fish scales through bio-enzyme directional shearing te...

Claims

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