Preparation method of wood frog skin gelatin

A technology of frog skin and gelatin is applied in the field of preparation of Rana sylvatica skin gelatin, which can solve the problems of large manpower and material resources, large sewage discharge, long production cycle and the like, and achieves the effects of reducing water consumption, production cost and impurities.

Inactive Publication Date: 2020-06-16
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional gelatin extraction method has a long production cycle, large water consumption, and a large amount of sewage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0026] Example 1

[0027] (1) Pre-treatment of Rana sylvatica skin: Cut off the limbs of Rana sylvatica and clean up foreign particles, then cut into small pieces of about 1cm×1cm, put them in a sealed bag and mark them, and store them in a freezer at -20℃ for later use. .

[0028] (2) Removal of impurities: Take 2.6g of treated wood frog skin pieces into a 100mL small beaker, add 65mL of 0.01g / mL NaCl solution, and use a magnetic stirrer to continue stirring for 6 hours, changing the solution every 2 hours. After soaking, wash with deionized water twice and dry the water.

[0029] (3) Removal of fat: take small pieces of wood frog skin from which impurities have been removed, add 78 mL of petroleum ether to soak defatted until the organic layer is colorless, and evaporate to dry at room temperature to obtain defatted wood frog skin.

[0030] (4) Gum extraction: Add 39 mL of 4% acetic acid solution to the defatted wood frog skin, and wrap it with a plastic wrap to prevent the volatil...

Example Embodiment

[0033] Example 2

[0034] (1) Pre-treatment of Rana sylvatica skin: Cut off the limbs of Rana sylvatica and clean up foreign particles, then cut into small pieces of about 1cm×1cm, put them in a sealed bag and mark them, and store them in a freezer at -20℃ for later use. .

[0035] (2) Removal of impurities: Take 2.8g of treated wood frog skin pieces into a 100mL small beaker, add 70mL of 0.01g / mL NaCl solution, and use a magnetic stirrer to continue stirring for 6 hours, changing the solution every 2 hours. After soaking, wash with deionized water 3 times and dry the water.

[0036] (3) Removal of fat: take small pieces of wood frog skin from which impurities have been removed, add 84 mL of petroleum ether to soak the degreaser until the organic layer is colorless, and evaporate to dry at room temperature to obtain defatted wood frog skin.

[0037] (4) Gum extraction: Add 42 mL of 3% acetic acid solution to the defatted wood frog skin, and wrap it with a plastic wrap to prevent the ...

Example Embodiment

[0040] Example 3

[0041] (1) Pre-treatment of Rana sylvatica skin: Cut off the limbs of Rana sylvatica and clean up foreign particles, then cut into small pieces of about 1cm×1cm, put them in a sealed bag and mark them, and store them in a freezer at -20℃ for later use. .

[0042] (2) Removal of impurity protein: Take 2.2 g of the treated wood frog skin pieces into a 100 mL small beaker, add 55 mL of 0.01 g / mL NaCl solution, and continue stirring with a magnetic stirrer for 6 hours, changing the liquid every 2 hours. After soaking, wash with deionized water 3 times and dry the water.

[0043] (3) Removal of fat: Take small pieces of wood frog skin from which impurities have been removed, add 66 mL of petroleum ether to soak the degreased organic layer until the organic layer is colorless, and evaporate to dry at room temperature to obtain defatted wood frog skin.

[0044] (4) Gum extraction: Add 33 mL of 3% acetic acid solution to the defatted wood frog skin, and wrap it with a plas...

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PUM

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Abstract

A preparation method of the wood frog skin gelatin is provided. In the method, wood frog skin is used for preparing the gelatin, the problem of wood frog skin resource waste is properly solved, wasteis turned into wealth, and economic benefits and ecological benefits are improved. Before the wood frog skin is subjected to gelatin extraction, most impurities are removed, so that the water consumption of the traditional gelatin preparation method is greatly reduced, and the gelatin production cost is reduced. The wood frog skin gelatin prepared by the method has few impurities and high quality,and can be widely applied to the fields of foods, medicines and the like.

Description

Technical field [0001] The invention relates to a method for preparing wood frog skin gelatin, and belongs to the technical field of gelatin preparation. Background technique [0002] The wood frog has been paid more and more attention by people for its unique medicinal value and nutritional value, and it has become one of the most economically valuable frogs. Among the wood frogs produced in various places, the wood frogs in the northeast region have a large body, a high oil production rate, a robust system, and a high reproduction rate, making them the best among the wood frogs. With the maturity of the forest frog breeding technology and artificial breeding technology, the forest frog breeding industry has developed rapidly. According to incomplete statistics, the annual output of forest frogs in Northeast China is about 1 billion. The main purpose of wood frog is to extract wood frog oil, and wood frog skin, as a by-product of wood frog oil processing, is mostly used as feed...

Claims

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Application Information

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IPC IPC(8): C09H3/00
CPCC09H3/00
Inventor 卢静石红岭关爽
Owner JILIN UNIV
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