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Method for preparing fish-skin collagen powder by use of fresh fish skin

A technology of fish skin collagen and collagen powder, which is applied to the preparation method of peptides, chemical instruments and methods, animal/human protein, etc., and can solve the problem of bad smell of collagen products

Inactive Publication Date: 2015-04-08
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 shortcomings of the bad smell of collagen products caused by the fishy smell substances contained in fish skin in the prior art, the present invention provides a method for producing fish skin collagen from fresh fish skin with advanced technology, reasonable process and easy operation. powder method, the fish skin collagen powder prepared by this method has no fishy smell

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of method that utilizes fresh fish skin to prepare fish skin collagen protein, through following process step:

[0030] (1) Selection and processing of raw materials

[0031] Choose non-polluted fresh fish skin as raw material for subsequent use;

[0032] Select commercially available Shanxi mature vinegar and food-grade sodium hydroxide for later use;

[0033] (2), alkali bubble removal, crushing treatment

[0034] Put the fresh fish skin selected in step (1) into the mixing tank, add food grade calcium hydroxide selected in step (1) to adjust the pH value to 12 while stirring, soak for 4 days, remove the fat and impurities on the surface of the fish skin protein; then soak and rinse the fish skin from which the fat and miscellaneous proteins have been removed, until the pH value is neutral, and then carry out crushing treatment;

[0035] (3), ultrasonic deodorization treatment

[0036] Add the fish skin crushed in step (2) to drinking water 5 times the we...

Embodiment 2

[0047] A kind of method that utilizes fresh fish skin to prepare fish skin collagen protein, through following process steps:

[0048] (1) Selection and processing of raw materials

[0049] Choose non-polluted fresh fish skin as raw material for subsequent use;

[0050] Select commercially available qualified Zhenjiang vinegar and Sichuan bran vinegar, and mix them in a ratio of 1:1; select food-grade sodium hydroxide, and set aside;

[0051] (2), alkali bubble removal, crushing treatment

[0052]Put the fresh fish skin selected in step (1) into the mixing tank, add food-grade calcium hydroxide selected in step (1) to adjust the pH value to 10 while stirring, and soak for 5 days to remove the fat and impurities on the surface of the fish skin. protein; then soak and rinse the fish skin that has removed fat and miscellaneous protein with clear water, wash until the pH value is neutral, and then carry out crushing treatment;

[0053] (3), ultrasonic deodorization treatment ...

Embodiment 3

[0065] A kind of method that utilizes fresh fish skin to prepare fish skin collagen protein, through following process steps:

[0066] (1) Selection and processing of raw materials

[0067] Choose non-polluted fresh fish skin as raw material for subsequent use;

[0068] Select commercially available Zhejiang rose rice vinegar and food-grade sodium hydroxide, and set aside;

[0069] (2), alkali bubble removal, crushing treatment

[0070] Put the fresh fish skin selected in step (1) into the mixing tank, add the food-grade calcium hydroxide selected in step (1) while stirring to adjust the pH value to 14, soak for 3 days, and remove the fat and impurities on the surface of the fish skin. protein; then soak and rinse the fish skin from which the fat and miscellaneous proteins have been removed, until the pH value is neutral, and then carry out crushing treatment;

[0071] (3), ultrasonic deodorization treatment

[0072] Add the broken fish skin in step (2) to drinking water...

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Abstract

The invention relates to a method for preparing a fish-skin collagen powder by the use of fresh fish skin. The method comprises the following steps: fresh fish skin is selected as a raw material and is immersed in sodium hydroxide, the fresh skin is washed with water to neutral pH after fat and impure protein on the surface of the fish skin are removed, and crushing is carried out; drinking water and edible vinegar are added to the crushed fish skin and uniform agitation is carried out, ultrasonication and deodorization treatments are carried out, and papain is added to carry out controlled-enzymatic hydrolysis so as to obtain a fish-skin enzymatic hydrolysate; active carbon is added for decarburization clarification after enzyme deactivation, filtration is carried out, and a filtrate undergoes concentration and spray drying so as to obtain the fish-skin collagen powder. By ultrasonication of the fish skin, active ingredients in acetic acid are activated to react with fishy smell substances in the fish skin so as to remove the fishy smell. By adding active carbon into the enzymatic hydrolysate to carry out decarburization clarification for fishy smell elimination and decoloration, the prepared fish-skin collagen powder has no fishy smell. The method provided by the invention has advantages of advanced technology, reasonable process and controllable operation, and is suitable for large-scale production.

Description

technical field [0001] The invention relates to protein preparation, in particular to a method for preparing fish skin collagen powder from fresh 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, which have caused people's dissatisfaction with collagen products. 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 ...

Claims

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Application Information

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IPC IPC(8): C12P21/06C07K14/78C07K1/14
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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