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Method for processing collagen peptide by using fish leftovers

A technology of collagen peptides and fish scraps, which is applied in the field of aquatic product processing and can solve problems such as limitations in the preparation of collagen peptides

Inactive Publication Date: 2011-11-16
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to mad cow disease, foot-and-mouth disease, etc., the preparation of collagen peptides from terrestrial raw materials is greatly restricted. The raw materials are mainly aquatic animals. The composition of fish is closest to that of the human body, and it is the most recognized and absorbed collagen by human tissues. source

Method used

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  • Method for processing collagen peptide by using fish leftovers

Examples

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Effect test

example 1

[0021] 1. Preparation of the fish waste mixture Firstly, the fish skin, fish scales, and fish viscera are processed separately to remove miscellaneous proteins and facilitate the dissolution of collagen. The fish skin is thawed, cleaned, shredded, soaked in 0.1mol / L NaOH 20 times its mass for 2 hours, and cleaned for later use; the fish scales are thawed, cleaned, soaked in 0.4mol / L HCL 20 times its mass for 2 hours, and its mass 20 times its mass 0.1mol / L NaOH soaked in 0.1mol / L NaOH for 2 hours, washed for later use; fish viscera were thawed, washed, and minced for later use; then the separately processed fish scraps were mixed to obtain a mixture of fish scraps for later use.

[0022] 2. Ultrasound promotes enzymatic hydrolysis of neutral protease. Weigh 20 g of the treated fish waste mixture and add 40 mL of deionized water. The ultrasonic frequency is 40kHz, the power is 200W, the initial pH value is adjusted to 7.0, the amount of enzyme added is 0.05%, the enzymolysis te...

example 2

[0032]1. Preparation of the fish waste mixture Firstly, the fish skin, fish scales, and fish viscera are processed separately to remove miscellaneous proteins and facilitate the dissolution of collagen. The fish skin is thawed, cleaned, shredded, soaked in 0.1mol / L NaOH 20 times its mass for 2 hours, and cleaned for later use; the fish scales are thawed, cleaned, soaked in 0.4mol / L HCL 20 times its mass for 2 hours, and its mass 20 times its mass 0.1mol / L NaOH soaked in 0.1mol / L NaOH for 2 hours, washed for later use; fish viscera were thawed, washed, and minced for later use; then the separately processed fish scraps were mixed to obtain a mixture of fish scraps for later use.

[0033] 2. Ultrasound promotes enzymatic hydrolysis with neutral protease. Weigh 20 g of the treated fish waste mixture and add 40 ml of deionized water. The ultrasonic frequency is 40kHz, the power is 400W, the initial pH value is adjusted to 7.0, the amount of enzyme added is 0.1%, the enzymolysis te...

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Abstract

The invention relates to a method for processing collagen peptides by using fish leftovers, belonging to the technical fields of aquatic product processing and comprehensive utilization of aquatic product leftovers. In the method, the fish leftovers such as fishskins, scales and fish viscera are used as raw materials for carrying out high-valued development utilization. The method specially comprises the following steps: firstly respectively treating and mixing the raw materials so as to obtain a fish leftover mixture; and then promoting step-by-step enzymolysis with ultrasonic wave, killing enzyme, centrifugalizing, decoloring, filtrating, carrying out reinforcing membrane separation with ultrasonic wave and nano filtrating and freeze drying so as to obtain collagen peptides with different molecular weights. According to the invention, the enzymolysis and membrane separation processes are promoted through ultrasonic wave, enzyme adding amount is less, enzymolysis time is short, production efficiency is high, and the obtained products with different molecular weights has no odor, is light in color, and can be used in industries such as medicaments, health products, food and the like.

Description

technical field [0001] The invention relates to aquatic product processing technology, in particular to a method for preparing collagen peptides from fish processing leftovers. The invention belongs to the technical field of aquatic product processing and comprehensive utilization of leftovers. Background technique [0002] my country's fish resources are widely distributed, with many types and large output, but the level of deep processing technology is low, and most of them are hand-crafted in workshops. There are few products; the technical content and added value of the products are very low, there are few products with high added value, and the level of comprehensive utilization of leftovers is not high, and they are even discarded. In fact, after processing and comprehensive utilization of fish waste, it can not only turn waste into treasure, but also avoid polluting the environment. It is also an effective way to increase the efficiency of enterprises and increase the...

Claims

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Application Information

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IPC IPC(8): C12P21/06C07K1/34
Inventor 胡爱军刘雪郑捷
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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