Water-soluble enzymolysis feather albumen powder and preparation method thereof

An enzymatic hydrolysis of feathers and water-soluble technology, applied in the field of protein feed, can solve the problems of complicated preparation methods such as amino acid protection measures, and achieve considerable economic benefits, easy digestion and absorption, and low production costs

Inactive Publication Date: 2018-10-26
安徽希普生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation method is more cumbersome and there are no protective measures for amino acids when the feather meal is treated at high temperature

Method used

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  • Water-soluble enzymolysis feather albumen powder and preparation method thereof

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Effect test

Embodiment 1

[0026] The preparation method of the water-soluble enzymolysis feather protein powder of the present embodiment comprises the following steps:

[0027] 1) Cooking pretreatment: take feathers, wash and remove impurities, separate stones, ropes, plastic films and other sundries to obtain dry feathers; put dry feathers in a pressure cooker, vacuumize the pressure cooker and fill it with nitrogen, and pour nitrogen into the pressure cooker Adding mass percentage concentration is 0.2% sodium carbonate aqueous solution, adds 100mL sodium carbonate aqueous solution in every 100g dry feathers, obtains feather alkaline aqueous solution. Under the condition of nitrogen protection, the alkaline aqueous solution of feathers was cooked. The process of cooking treatment is as follows: firstly, steam is introduced into the pressure cooker to heat the alkaline aqueous solution of feathers to 100° C., then keep it warm for 40 minutes, and then lower the temperature to 60° C. to obtain cooked f...

Embodiment 2

[0033] The preparation method of the water-soluble enzymolysis feather protein powder described in this embodiment comprises the following steps:

[0034] 1) Cooking pretreatment: take feathers, wash and remove impurities, separate stones, ropes, plastic films and other sundries to obtain dry feathers; put dry feathers in a pressure cooker, vacuumize the pressure cooker and fill it with nitrogen, and pour nitrogen into the pressure cooker Adding mass percentage concentration is 0.1% sodium carbonate aqueous solution, adds 200mL sodium carbonate aqueous solution in every 100g dry feathers, obtains feather alkaline aqueous solution. Under the condition of nitrogen protection, the alkaline aqueous solution of feathers was cooked. The process of cooking treatment is as follows: firstly, steam is introduced into the pressure cooker to heat the alkaline aqueous solution of feathers to 135° C., then keep it warm for 30 minutes, and then lower the temperature to 40° C. to obtain cooke...

Embodiment 3

[0040] The preparation method of the water-soluble enzymolysis feather protein powder described in this embodiment comprises the following steps:

[0041] 1) Cooking pretreatment: take feathers, wash and remove impurities, separate stones, ropes, plastic films and other sundries to obtain dry feathers; put dry feathers in a pressure cooker, vacuumize the pressure cooker and fill it with nitrogen, and pour nitrogen into the pressure cooker Adding mass percentage concentration is 0.4% sodium carbonate aqueous solution, adds the sodium carbonate aqueous solution of 500mL in every 100g dry feathers, obtains feather alkaline aqueous solution. Under the condition of nitrogen protection, the alkaline aqueous solution of feathers was cooked. The process of cooking treatment is as follows: firstly, steam is introduced into the pressure cooker to heat the alkaline aqueous solution of feathers to 125°C, then keep it warm for 60 minutes, and then lower the temperature to 80°C to obtain boil...

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Abstract

The invention relates to water-soluble enzymolysis feather albumen powder and a preparation method thereof. The preparation method comprises the following steps: taking dry feathers, adding a sodium carbonate water solution into the dry feathers to obtain an alkaline feather water solution, and steaming the alkaline feather water solution under a nitrogen protection condition to obtain the steamedfeathers; taking the steamed feathers, pulping and sieving, adding keratinase and trypsin, adjusting pH to 7-9, and performing primary enzymolysis to obtain a primary zymolyte after the primary enzymolysis is ended, adjusting pH of the primary zymolyte to 6.0-7.5, adding neutral protease to perform secondary enzymolysis, and after the secondary enzymolysis is ended, boiling a secondary zymolyte to deactivate enzymes to further obtain secondary zymolyte, wherein primary enzymolysis and secondary enzymolysis are conducted under a stirring condition; filtering the secondary zymolyte, concentrating filtrate until the water content reaches 45-60%, and spraying and drying the filtrate to obtain the water-soluble enzymolysis feather albumen powder. The product is easy to digest and absorb, and stable in quality, and can serve as fodder or high-quality albumen raw materials.

Description

technical field [0001] The invention belongs to the technical field of protein feed, and in particular relates to a water-soluble enzymolysis feather protein powder and a preparation method thereof. Background technique [0002] Feather meal is made from various poultry feathers. Feather meal has high protein content, and its amino acid composition is characterized by rich glycine, serine, cystine and isoleucine. It is one of the effective sources to solve the shortage of feed protein sources. However, due to the high content of keratin in feather powder, it is not easy to be digested and absorbed by objects. [0003] At home and abroad, a large number of scholars have studied the degradation and destruction of keratin in feather meal by alkaline hydrolysis, enzymatic hydrolysis and other biochemical technologies to produce feed feather meal that can be absorbed by passive objects. Such as using steam and certain pressure to hydrolyze feathers to increase its availability,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P21/06
CPCC12P21/06
Inventor 劳泰财恽辉余忠丽程林春王俊青赵大伟伍爱辉
Owner 安徽希普生物科技有限公司
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