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Preparation method of high-melt-temperature fish scale gelatin

A fish scale gelatin and high gel melting technology, which is applied in the field of aquatic product processing, can solve the problems of high gel melting temperature of fish scale gelatin, achieve high gel melting temperature, broaden the application field, and protect the environment

Inactive Publication Date: 2015-02-11
JIANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the fish scale gelatin prepared by the present invention has a higher gel melting temperature, which has not been reported at home and abroad.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1. Treatment of fish scales: Remove impurities in fish scales, such as fish gills, fish viscera, fish fins, etc., and rinse with clean water 4-6 times. Stir intermittently for 1-2 minutes with a tissue masher to remove fish silver, and rinse with water until the surface of fish scales is clean;

[0020] 2. Low-acid decalcification: Mix the fish scales in step 1 with hydrochloric acid with a concentration of 0.5MoL / L at a material-to-liquid ratio of 1:15 (g / mL) for decalcification. During the decalcification period, it needs to be stirred 5-7 times every 20 minutes, and the decalcification time is about 1 hour. After decalcification, rinse with water and the pH is about 6.0;

[0021] 3. Fish scale gelatin extraction: Mix the fish scales in step 2 with water at a material-to-liquid ratio of 1:3 (g / mL). Place in an ultrasonic-microwave instrument (XH-300A, Beijing Xianghu) with a power of 800w to extract for 2h;

[0022] 4. Centrifugation: centrifuge the gelatin mixture...

Embodiment 2

[0028] 1. Treatment of fish scales: Remove impurities in fish scales, such as fish gills, fish viscera, fish fins, etc., and rinse with clean water 4-6 times. Stir intermittently for 1-2 minutes with a tissue masher to remove fish silver, and rinse with water until the surface of fish scales is clean;

[0029] 2. Low-acid decalcification: Mix the fish scales in step 1 with hydrochloric acid with a concentration of 0.4MoL / L at a material-to-liquid ratio of 1:15 (g / mL) for decalcification. During the decalcification period, it needs to be stirred 5-7 times every 20 minutes, and the decalcification time is about 1 hour. After decalcification, rinse with water and the pH is about 6.0;

[0030] 3. Fish scale gelatin extraction: Mix the fish scales in step 2 with water at a material-to-liquid ratio of 1:3 (g / mL). Place in an ultrasonic-microwave instrument (XH-300A, Beijing Xianghu) with a power of 600w to extract for 2h;

[0031] 4. Centrifugation: centrifuge the gelatin mixture...

Embodiment 3

[0037] 1. Treatment of fish scales: Remove impurities in fish scales, such as fish gills, fish viscera, fish fins, etc., and rinse with clean water 4-6 times. Stir intermittently for 1-2 minutes with a tissue masher to remove fish silver, and rinse with water until the surface of fish scales is clean;

[0038] 2. Low-acid decalcification: Mix the fish scales in step 1 with hydrochloric acid with a concentration of 0.3MoL / L at a material-to-liquid ratio of 1:15 (g / mL) for decalcification. During the decalcification period, it needs to be stirred 5-7 times every 20 minutes, and the decalcification time is about 1 hour. After decalcification, rinse with water and the pH is about 6.0;

[0039] 3. Fish scale gelatin extraction: Mix the fish scales in step 2 with water at a material-to-liquid ratio of 1:3 (g / mL). Place in an ultrasonic-microwave instrument (XH-300A, Beijing Xianghu) with a power of 400w to extract for 2h;

[0040] 4. Centrifugation: centrifuge the gelatin mixture...

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PUM

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Abstract

The invention relates to a preparation method of high-melt-temperature fish scale gelatin. The preparation method comprises the following steps: by taking waste scale generated during processing of freshwater fish as a raw material, performing low-acid de-calcification, ultrasonic-microwave extraction, centrifugation, ultramembrane filtration, bio-enzyme modification and spray drying technologies, wherein the prepared fish scale gelatin product has higher extraction rate and melt temperature. The preparation method has the advantages that the fish scale gelatin extracted by adopting the ultrasonic-microwave technology has higher extraction rate; the content and purity of protein in the fish gelatin can be increased by adopting the ultramembrane filtration technology; and the melt temperature of the fish gelatin can be increased by adopting the bio-enzyme modification technology. The method provides a new conception for the production of high-melt-temperature fish scale gelatin, and provides a new method for the modification and industrial production of the fish gelatin.

Description

technical field [0001] The invention belongs to the field of aquatic product processing, and relates to a method for preparing fish scale gelatin with high gel melting temperature. Background technique [0002] Gelatin is usually a soluble protein produced by the hydrolysis of mammalian collagen, and its raw materials are mostly mammals such as pigskin and cowhide. Can be widely used in food, medicine, photography and other fields. However, due to mad cow disease, vegetarians, and religious beliefs, the application range of mammalian gelatin is greatly limited. In recent years, due to the shortage of gelatin raw materials and high production costs, the "poison capsule" incident has greatly stimulated people. Therefore, finding a new type of gelatin that can replace mammalian gelatin has become a research hotspot today. Studies have found that fish gelatin has some properties similar to mammalian gelatin, but the melting temperature of fish gelatin is lower than that of ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09H3/00C12P21/00
Inventor 涂宗财黄涛王辉刘光宪李如一杨文华
Owner JIANGXI NORMAL UNIV
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