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Method for preparing collagen powder from fish skin and fish scales

A collagen powder and fish skin technology, which is applied in the field of animal collagen extraction, can solve the problem that the safety of collagen powder cannot be guaranteed, and achieve the effects of high safety performance, good quality and reducing antigenicity

Inactive Publication Date: 2015-11-25
FUJIAN FUMING FOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, artificially farmed tilapia will more or less contain hormones and antibiotics, and the safety of collagen powder made from such raw materials cannot be guaranteed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for preparing collagen powder from tilapia fish skin and fish scales, comprising the following steps: (1) Ozone water treatment: After sorting, removing impurities and cleaning the fish skins and fish scales, they are stacked into 0.5-1cm thick layers respectively After atomizing ozone water with a concentration of 10 mg / L, spray it evenly on the fish skin (the amount of ozone water is 0.5% of the weight of the fish skin) and fish scales (the amount of ozone water is 1.0% of the weight of the fish skin); the frequency of use 25kHz, power 70w / cm 2 Ultrasonic digestion of fish skin and fish scales by ultrasound, 2 hours for fish skin and 4 hours for fish scales;

[0030] (2) Acid treatment: the fish skin and fish scales treated with ozone water are sorted to remove impurities, cleaned, dried at 65°C until the moisture content is ≤12wt%, crushed and passed through a 30-mesh sieve; Fish skin powder and fish scale powder are then decalcified by acid treatment; acid...

Embodiment 2

[0040] A method for preparing collagen powder from tilapia fish skin and fish scales, comprising the following steps: (1) Ozone water treatment: After sorting, removing impurities and cleaning the fish skins and fish scales, they are stacked into 0.5-1cm thick layers respectively After atomizing ozone water with a concentration of 9 mg / L, spray it evenly on fish skin (the amount of ozone water is 0.5% of the weight of fish skin) and fish scales (the amount of ozone water is 1.2% of the weight of fish skin); the frequency of use 30kHz, power 80w / cm 2 Ultrasonic digestion of fish skin and fish scales, 3 hours of ultrasound for fish skin, 3 hours of ultrasound for fish scales;

[0041] (2) Acid treatment: the alkali-treated fish skin and scales are sorted, removed, cleaned, dried at 70°C until the moisture content is ≤12wt%, crushed and passed through a 30-mesh sieve; fish Skin powder and fish scale powder are then decalcified by acid treatment; acid treatment conditions are: HC...

Embodiment 3

[0051] A method for preparing collagen powder from tilapia fish skin and fish scales, comprising the following steps: (1) Ozone water treatment: After sorting, removing impurities and cleaning the fish skins and fish scales, they are stacked into 0.5-1cm thick layers respectively After atomizing ozone water with a concentration of 11 mg / L, spray it evenly on fish skin (the amount of ozone water is 0.5% of the weight of fish skin) and fish scales (the amount of ozone water is 0.8% of the weight of fish skin); the frequency of use 20kHz, power 60w / cm 2 Ultrasonic digestion of fish skin and fish scales by ultrasound, 2 hours for fish skin and 4 hours for fish scales;

[0052] (2) Acid treatment: the alkali-treated fish skin and scales are sorted, removed, cleaned, dried at 80°C until the water content is ≤12wt%, crushed and passed through a 30-mesh sieve; fish Skin powder and fish scale powder are then decalcified by acid treatment; acid treatment conditions are: HC1 concentrati...

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Abstract

The invention belongs to the field of animal collagen extraction, and particularly relates to a method for preparing collagen powder from fish skin and fish scales. According to the method, the fish skin and the fish scales are subjected to ozone treatment, acid treatment for decalcification and alkali treatment for impurity protein removal; then, compound protease is used for performing enzymolysis treatment on the fish skin and the fish scales; under the condition, the collagen extraction rate is high; finally, a three-stage membrane system is used for treatment; and collagen peptide products with different molecular weights can be obtained through respective interception. Through multi-membrane filtration, collagen extraction products with different molecular weights can be obtained; the peptide loss is nearly zero; more than 90 percent of micromolecular amino acids can be removed; the purity of small peptides is improved; and the collagen powder with high purity is prepared.

Description

technical field [0001] The invention belongs to the field of animal collagen extraction, in particular to a method for preparing collagen powder from fish skin and fish scales. Background technique [0002] Tilapia, commonly known as African crucian carp, non-crucian carp, Vietnamese carp, Nanyang crucian carp, etc., is now a freshwater farmed fish cultivated by key scientific research in the world's aquaculture industry, and is known as one of the main sources of animal protein in the future. Tilapia scales are mainly composed of protein and ash, and the crude protein content is as high as 50%. The amino acid composition shows that freshwater fish scales are rich in hydroxyproline, which is a good raw material for preparing hydrolyzed collagen. The patent application with the publication number CN104498573A discloses a method for extracting collagen from tilapia scales, which is to add hydrochloric acid to decalcify the scales, remove impurities, wash with distilled water, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P21/06
Inventor 杨新杨宗铭
Owner FUJIAN FUMING FOOD