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Processing method for feather albumen powder

A technology of feather protein powder and processing method, which is applied in the direction of additional food elements, animal feed, application, etc., can solve the problems of large amino acid damage and potential safety hazards, and achieve the effects of high digestibility, simple equipment, and simple process

Inactive Publication Date: 2017-01-04
ANHUI SANXIANG DOWN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are potential safety hazards in this method. In addition, the gas explosion treatment has great damage to the amino acids in the feather powder, and the crude protein content in the prepared feather protein powder only reaches 90%.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A processing method of feather protein powder, the steps are as follows:

[0019] 1) Wash the poultry feathers with water to remove dirt, boil them for 1 hour, take them out, drain the surface water, quickly cool them down to minus 25°C, keep them for 13 hours, take them out, soak them in 30°C constant temperature water for 4 minutes to thaw, take them out, drain the surface water, Repeat the freezing and thawing operation once;

[0020] 2) Freeze the thawed poultry feathers at minus 17°C for 6 hours, crush them, and thaw them at room temperature, add Bacillus licheniformis and Bacillus subtilis with a mass ratio of 2:1, the total amount added is 0.8% of the mass of poultry feathers, Enzymolysis and fermentation, the enzymolysis temperature is 35°C, the time is 38h, the enzyme is inactivated, and the crude feather protein powder is obtained;

[0021] 3) The crude feather protein powder is dried, pulverized, and passed through a 100-mesh sieve to obtain the product.

Embodiment 2

[0023] A processing method of feather protein powder, the steps are as follows:

[0024] 1) Wash the poultry feathers with water to remove dirt, boil them in water for 1.5 hours, take them out, drain the surface water, quickly cool them down to minus 20°C, keep them for 15 hours, take them out, soak them in 35°C constant temperature water for 3 minutes to thaw, take them out, and drain the surface water , repeat the freezing and thawing operation once;

[0025] 2) Freeze the thawed poultry feathers at minus 15°C for 8 hours, crush them, and thaw them at room temperature, add Bacillus licheniformis and Bacillus subtilis with a mass ratio of 3:2, the total amount added is 0.5% of the mass of poultry feathers, Enzymolysis and fermentation, the enzymolysis temperature is 30°C, the time is 40h, the enzyme is inactivated, and the crude feather protein powder is obtained;

[0026] 3) The crude feather protein powder is dried, pulverized, and passed through a 100-mesh sieve to obtain...

Embodiment 3

[0028] A processing method of feather protein powder, the steps are as follows:

[0029] 1) Wash the poultry feathers with water to remove dirt, boil them for 1 hour, take them out, drain the surface water, quickly cool them down to minus 30°C, keep them for 12 hours, take them out, soak them in 30°C constant temperature water for 5 minutes to thaw, take them out, drain the surface water, Repeat the freezing and thawing operation twice;

[0030] 2) Freeze the thawed poultry feathers at minus 20°C for 5 hours, crush them, and thaw them at room temperature, add Bacillus licheniformis and Bacillus subtilis with a mass ratio of 2:1, the total amount added is 1.0% of the mass of poultry feathers, Enzymolysis and fermentation, the enzymolysis temperature is 40°C, the time is 30h, and the enzymatic treatment is carried out to obtain the crude feather protein powder;

[0031] 3) The crude feather protein powder is dried, pulverized, and passed through a 100-mesh sieve to obtain the p...

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PUM

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Abstract

The invention discloses a processing method for feather albumen powder and relates to the technical field of albumen powder processing. The feather albumen powder is prepared according to the following steps: washing poultry feather with water, cleaning and then cooking with water; freezing; thawing; crushing under partial freezing state; performing enzymolysis; drying; crushing and sieving. According to the method of repeatedly cooking with water, freezing and then performing enzymolysis provided by the invention, the macromolecule albumen in the feather is converted into micro-molecule polypeptide; freezing is performed after water cooking, so that the interior structure of the feather is loosened; after enzymolysis, the albumen powder contains various amino acid ingredients; the digestibility of the obtained albumen powder is high; the albumen powder is fit for the processing of the feather albumen powder produced by adopting the feather of poultry including chicken, duck, goose and the like; the processing method provided by the invention has the advantages that the technique is simple, the equipment is simple and the industrial production requirement can be met.

Description

technical field [0001] The invention relates to the field of protein powder processing, in particular to a method for processing feather protein powder. Background technique [0002] The poultry breeding industry is one of the pillar industries of my country's animal husbandry. The poultry (chicken, duck, goose) feather production is very rich, with an annual output of more than one million tons. It is rich in various essential amino acids for animals and is an ideal source of feed protein. However, due to the specific disulfide bond protein structure of feathers, it is difficult to be digested and absorbed by animals, which seriously affects its development and utilization. Today, when my country's protein resources are increasingly scarce, it is very important to make full use of feather protein resources. [0003] Application No. 2009101700282.3 discloses a preparation method of feather protein powder. First, the feathers are washed, dried and cut for pretreatment, and t...

Claims

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Application Information

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IPC IPC(8): A23J1/10A23K20/147
CPCA23J1/10
Inventor 李林刚汪锐杨梅
Owner ANHUI SANXIANG DOWN
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