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A method for preparing fish skin collagen powder from dried fish skin

A technology for fish skin collagen and collagen powder, which is applied in the preparation methods of peptides, chemical instruments and methods, peptides, etc., can solve the problems of low purity and poor odor of collagen products.

Active Publication Date: 2019-07-02
威海市桢昊生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the disadvantages of bad smell and low purity of collagen products caused by fishy smell substances and crude hydroxyapatite contained in fish skin in the prior art, the present invention provides a utilization A method for preparing fish skin collagen powder from dried fish skin, the fish skin collagen powder prepared by the method has no fishy smell and high purity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of method that utilizes dry fish skin to prepare fish skin collagen protein, through following process steps:

[0034] (1) Selection and processing of raw materials

[0035] Choose non-polluted dried fish skin as raw material for subsequent use;

[0036] Select commercially available Shanxi mature vinegar, Zhejiang rose rice vinegar, food-grade hydrochloric acid, and high-efficiency activated clay for later use; among them, Shanxi mature vinegar and Zhejiang rose rice vinegar are mixed in a ratio of 1:1.5;

[0037] The composite flocculant No. Ⅰ and composite flocculant No. Ⅱ produced by Weifang Lvshui Chemical Co., Ltd. were selected. Among them, the composite flocculant No. Ⅰ and the composite flocculant No. Ⅱ were used as flocculants in a ratio of 1:1. 20% solution, spare;

[0038] (2), soaking to remove impurities, crushing treatment

[0039] Put the dried fish skin selected in step (1) into the mixing tank, add water 12 times its weight, soak for 15 hours...

Embodiment 2

[0054] A kind of method that utilizes dry fish skin to prepare fish skin collagen protein, through following process steps:

[0055] (1) Selection and processing of raw materials

[0056] Choose non-polluted dried fish skin as raw material for subsequent use;

[0057] Select commercially available qualified Sichuan bran vinegar, food-grade hydrochloric acid, and high-efficiency activated clay for later use;

[0058] Purchase the composite flocculant No. Ⅰ and composite flocculant No. Ⅱ produced by Weifang Lvshui Chemical Co., Ltd., and the composite flocculant No. Ⅰ and composite flocculant No. Ⅱ are used as flocculants in a ratio of 1:1, and the concentration is 25% respectively. solution, spare;

[0059] (2), soaking to remove impurities, crushing treatment

[0060] Put the dried fish skin selected in step (1) into the mixing tank, add water 15 times its weight, soak for 12 hours, then change the water and soak for 3 days, the amount of water changed is 10 times the weigh...

Embodiment 3

[0075] A kind of method that utilizes dry fish skin to prepare fish skin collagen protein, through following process steps:

[0076] (1) Selection and processing of raw materials

[0077] Choose non-polluted dried fish skin as raw material for subsequent use;

[0078] Select commercially available Zhenjiang vinegar, food-grade hydrochloric acid, and high-efficiency activated clay for later use;

[0079] Purchase the composite flocculant No. Ⅰ and composite flocculant No. Ⅱ produced by Weifang Lvshui Chemical Co., Ltd., and the composite flocculant No. Ⅰ and composite flocculant No. Ⅱ are used as flocculants in a ratio of 1:1, and the concentration is 15% respectively. solution, spare;

[0080] (2), soaking to remove impurities, crushing treatment

[0081] Put the dried fish skin selected in step (1) into the mixing tank, add water 10 times its weight, soak for 24 hours, then change the water and soak for 1 day, the amount of water changed is 15 times the weight of the dried...

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Abstract

The invention relates to a method for preparing a fish-skin collagen powder by the use of dry fish skin. The method comprises the following steps: dry fish skin is selected and is immersed in water for two times, and edible hydrochloric acid is added during the second immersion so as to remove impure protein on the surface of the fish skin; the fish skin is washed with water to neutral pH; drinking water and edible vinegar are added after crushing, and then ultrasonication and deodorization treatments are carried out; papain is added to carry out controlled-enzymatic hydrolysis so as to obtain a fish-skin enzymatic hydrolysate; activated clay and a flocculating agent are added after enzyme deactivation, static settlement is carried out, and hydroxyapatite impurities in the fish skin are removed; and a supernatant is taken and active carbon is added for decarburization clarification, and filtration, concentration and spray drying are successively carried out to obtain the fish-skin collagen powder. The method provided by the invention has advantages of advanced technology, reasonable process and controllable operation, and is suitable for large-scale production. By the method, the prepared fish-skin collagen powder has no fishy flavor and has high purity.

Description

technical field [0001] The invention relates to protein preparation, in particular to a method for preparing fish skin collagen powder from dried fish skin. Background technique [0002] We know that the raw materials for the preparation of collagen mainly come from the bones and skins of mammals. Due to the prevalence of epidemic diseases in animals in recent years, they have brought great threats to humans, such as mad cow disease, foot-and-mouth disease, and bird flu. panic. As a result, marine bio-collagen from the ocean has become very popular. [0003] At present, there are many studies on extracting collagen from fish skin, and the general process includes the processing of raw materials, enzymatic hydrolysis, filtration, concentration and spray drying. For example, published invention patent applications No. 200910131265.4 and No. 201310064690.2. However, fish skin contains a large amount of fishy substances, which will seriously affect the flavor and purity of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P21/06C07K1/30
Inventor 倪海平杨众唐茂林唐严芳
Owner 威海市桢昊生物技术有限公司
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