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A kind of feather protein powder and preparation method thereof

A technology of feather protein powder and feathers, which is applied in the fields of application, animal feed, animal feed, etc., can solve the problems of protein metamorphosis, backward process equipment, and low feather dissolution rate, and achieve mild enzymatic hydrolysis reaction conditions, reduce pollution, Avoid the effects of chemical reactions

Active Publication Date: 2011-12-28
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the backward process equipment, the process parameters are not easy to control, the hydrolysis effect is not good, the product quality is unstable, the amino acid digestibility is low or the protein is seriously degenerated
[0007] In the neutralization stage of the acid-base hydrolysis method, a large amount of acid-base is consumed, the product contains too much salt, and the palatability is poor. When the product is used as feed or feed additive, it will inhibit the growth of animals, and produce a large amount of acid-base wastewater, polluting the environment, Therefore, the application is limited
[0008] In recent years, there have also been reports on the extraction of feather keratin by oxidation. The oxidants used mainly include peracetic acid, halogen and hydrogen peroxide, etc., but there are also defects such as long oxidation reaction time and low feather dissolution rate.
Biotechnology includes microbial and enzymatic degradation methods. However, there is no simple method for industrial production, especially the industrial decomposition of keratin using keratinase or keratin-degrading microorganisms

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] Use the waste after down processing, wash it with water, dry it, and use a micro pulverizer produced by Shanghai Jiading Grain and Oil Instrument Co., Ltd. to crush it to 1.0cm; The pulse steam explosion machine sold by the steam explosion process test bench is filled with the explosion chamber of the steam explosion machine, and the steam explosion treatment is carried out at room temperature and a pressure of 1.8MPa for 500s, then the pressure is released, the explosion is taken out, and Guangxi Nanning Gevoli biological products are added Co., Ltd. sells protease under the trade name of papain. The amount of papain is 0.1% by weight of the waste material. The enzymolysis reaction is carried out at a temperature of 50°C and stirring for 1.0h, and the obtained enzymolysis solution is maintained at 100°C. Carry out enzyme inactivation for 8 minutes, and then dry under constant temperature conditions after inactivation, and the product obtained is pulverized to 20 meshes ...

Embodiment 2

[0087] Use chicken feathers as raw materials, wash them with water, and add the crushed waste feathers to a pulse steam explosion machine (steam explosion device produced by Zhengdao Heavy Machinery Factory, Hebi City, Henan Province) after drying, fill the explosion chamber of the steam explosion machine, and mix it at room temperature and 1.2 Under the pressure of MPa, carry out steam explosion treatment 60s, release pressure then, blast and take out, add the Alcalase papain sold by Novozymes, the amount of this papain is 0.2% by weight of the waste material, at a temperature of 60°C and stirring conditions The enzymolysis reaction was carried out at 100°C for 3.0 hours, and the obtained enzymolysis solution was inactivated at 100°C for 10 minutes, and then dried at a constant temperature, and the obtained product was pulverized using a grinder (Shanghai Jiading Grain and Oil Instrument Co., Ltd.) 20 orders, obtain feather protein powder like this.

[0088] The national stan...

Embodiment 3

[0091] Utilize duck feather as raw material, wash with water, use pulverizer (Shanghai Jiading Grain and Oil Instrument Co., Ltd.) to pulverize to 0.5cm after drying; steam explosion device), fill the explosion cavity of the steam explosion machine, carry out steam explosion treatment at room temperature and a pressure of 1.5MPa for 180s, then release the pressure, take it out by explosion, and add trypsin sold by Shanghai Kaiyang Biotechnology Co., Ltd. Trypsin, the amount of trypsin is 0.05% based on the weight of the duck feather, and the enzymolysis reaction is carried out at a temperature of 50°C and under stirring conditions for 1.5h, and the obtained enzymolysis solution is extinguished at 100°C for 10min, and then Drying was carried out under constant temperature conditions, and the obtained product was pulverized to 20 meshes using a micro pulverizer (Shanghai Jiading Cereals and Oils Instrument Co., Ltd.) to obtain feather protein powder.

[0092] Obtain the pepsin d...

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PUM

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Abstract

The invention relates to a preparation method of feather albumen powder and the feather albumen powder prepared by the method. The method comprises the following steps: firstly carrying out pretreatment of washing, drying and cutting; then effectively carrying out steam explosion on feather by a steam explosion technique to damage the stable space structure of feather keratin; and finally carryingout zymohydrolysis treatment to enable the feather to become dissoluble small peptide and amino acid, thereby enhancing the digesting rate of pepsin of feather albumen and largely enhancing the biologic valence. The preparation method has the advantages of simplicity, low production cost, short processing period and high equipment efficiency. The content of crude albumen in the feather powder achieves more than 90%, and the digesting rate of in vitro pepsin achieves more than 88%.

Description

【Technical field】 [0001] The invention relates to the technical field of animal feed. More specifically, the present invention relates to a method for preparing feather protein powder, and also relates to feather protein powder prepared by the method. 【Background technique】 [0002] The poultry breeding industry is one of the pillar industries of my country's animal husbandry industry. It is also the industry with the highest degree of scale and intensification and the closest to the international advanced level. However, the shortage and lack of protein feed resources have seriously restricted the sustainable development of the poultry breeding industry. Rely on imported fishmeal to fill the protein gap in energy feed. According to the forecast of the National Feed Industry Office, by 2010, my country's demand for protein feed will be 60 million tons, while the supply will only reach 22 million tons. Facing such a huge resource gap, how to find a suitable animal protein so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K1/10A23K10/26
Inventor 杨瑞金张文斌华霄赵伟张益奇徐桂敏
Owner JIANGNAN UNIV
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