Preparation method of fish skin collagen anti-oxidation film containing green tea extract

A technology of fish skin collagen and green tea extract, which is applied in the field of fish skin collagen to achieve the effects of good sensory properties, inhibition of food lipid oxidation, fresh smell and taste

Inactive Publication Date: 2017-05-31
合肥观云阁科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report on the preparation of antioxidant film by blending green tea extract and fish skin collagen

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A preparation method of a fish skin collagen antioxidant film containing green tea extract, comprising the following steps:

[0026] 1) Take fresh tea leaves to remove impurities, remove old leaves, old stalks and non-tea impurities, then freeze the fresh tea leaves with liquid nitrogen, and pulverize them immediately after treatment;

[0027] 2) Immediately mix the pulverized tea leaves with a certain amount of hot water at a temperature of 80°C, which is sufficient to make the weight ratio of the two in the mixture of tea leaves and water 1:20;

[0028] 3) Pulverize the tea leaves and water mixture again, and keep the mixture for a certain pulverization time, which is enough to release the intracellular substances in the tea cells into the water to obtain the water extract components and tea residue components, which are extracted from the water Remove the tea residue from the extract, and add a formula amount of maltodextrin, wherein the temperature during the entire...

Embodiment 2

[0032] A preparation method of a fish skin collagen antioxidant film containing green tea extract, comprising the following steps:

[0033] 1) Take fresh tea leaves to remove impurities, remove old leaves, old stalks and non-tea impurities, then freeze the fresh tea leaves with liquid nitrogen, and pulverize them immediately after treatment;

[0034] 2) Immediately mix the pulverized tea leaves with a certain amount of hot water at a temperature of 90°C, which is sufficient to make the weight ratio of the two in the mixture of tea leaves and water 1:15;

[0035] 3) Pulverize the tea leaves and water mixture again, and keep the mixture for a certain pulverization time, which is enough to release the intracellular substances in the tea cells into the water to obtain the water extract components and tea residue components, which are extracted from the water Remove tea residue components from the extract, and add a formulated amount of hydroxypropyl cellulose, wherein the temperat...

Embodiment 3

[0039] A preparation method of a fish skin collagen antioxidant film containing green tea extract, comprising the following steps:

[0040] 1) Take fresh tea leaves to remove impurities, remove old leaves, old stalks and non-tea impurities, then freeze the fresh tea leaves with liquid nitrogen, and pulverize them immediately after treatment;

[0041] 2) Immediately mix the pulverized tea leaves with a certain amount of hot water at a temperature of 100° C., which is sufficient to make the weight ratio of the two in the mixture of tea leaves and water 1:15;

[0042] 3) Pulverize the tea and water mixture again, and keep the mixture for a certain pulverization time, which is enough to release the intracellular substances in the tea cells into the water to obtain the water extract components and tea residue components, which are extracted from the water Remove tea residue components from the extract, and add a formulated amount of hydroxypropyl cellulose, wherein the temperature ...

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PUM

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Abstract

The invention provides a preparation method of a fish skin collagen anti-oxidation film containing a green tea extract. The preparation method comprises the following steps of 1), taking a fresh tea leaf, carrying out impurity removal treatment, then carrying out freezing treatment on the fresh tea leaf by using liquid nitrogen, and immediately carrying out smashing after the treatment; 2), immediately mixing the smashed tea leaf with a certain amount of hot water of which the temperature is 80 to 100 DEG C; 3), smashing a mixture of the tea leaf and the water again, and maintaining the mixture to have a certain smashing time, so as to obtain the component of a water extract and the component of a tea leaf residue; 4), while the water extract is hot, adding a certain amount of fish-skin collagen powder into the water extract for dissolving, then adding a proper amount of glycerol into an obtained first mixture as a plasticizer, uniformly mixing an obtained second mixture, standing the second mixture for degassing, so as to obtain collagen film casting liquid of the green tea extract, and spreading the collagen film casting liquid to form a film. The anti-oxidation film prepared by the method is favorable in performance and further has the function of preventing food from oxidative spoilage, so as to achieve the effects of preserving the food and prolonging a shelf life; moreover, the content of GCG (Gallocatechin Gallate) in tea polyphenol is far higher than that in a conventional extraction method.

Description

technical field [0001] The invention belongs to the technical field of fish skin collagen, and in particular relates to a preparation method of a fish skin collagen antioxidant film containing green tea extract. Background technique [0002] Collagen / gelatin is the most widely used animal protein in edible packaging and has good film-forming properties. However, most of them come from the skin and bones of pigs and cattle. In recent years, due to the scare of mad cow disease and the needs of Muslims, research on finding such collagen substitutes is imminent. Fish skin collagen is not restricted by religious beliefs, and is a rich and safe protein resource. Fujian Province is a large ocean and fishery province with abundant fishery resources, and its per capita aquatic products rank first in the country. In 2008, the added value of fishery economy in Fujian Province accounted for 5.65% of the province's GDP, the total output of aquatic products was 5.542 million tons, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L89/06C08L3/02C08L1/28C08K5/00C08K5/04C08J5/18
CPCC08L89/06C08J5/18C08J2389/00C08J2401/28C08J2403/02C08L2201/08C08L2203/16C08L3/02C08K5/005C08K5/04C08L1/284
Inventor 张杰
Owner 合肥观云阁科技发展有限公司
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