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Method for preparing silk feather protein powder for preparation of protein filament

The technology of feather protein powder and feather protein is applied to the preparation methods of peptides, single-component protein rayon, chemical instruments and methods, etc., and can solve the problems of complex procedures, potential safety hazards, and large damage to amino acids in feather powder, etc. To achieve the effect of simple process, high product quality and convenient industrial scale production

Inactive Publication Date: 2013-05-08
成都天之蚕生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, this method has complex procedures and hidden safety hazards. On the other hand, the amino acid in the feather meal is greatly damaged, and the crude protein content in the prepared feather protein powder only reaches 90%, and the prepared feather protein powder can only be used as feed protein

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Take 500g of feather powder (commercially available chicken feather, duck feather, goose feather), crush the feather powder through a 20-mesh sieve, then take the feather powder and send it to the batching kettle, according to the quality of the feather powder (kg): 1% dilute The ratio of the volume (L) of hydrochloric acid aqueous solution is 1:10, pump dilute hydrochloric acid aqueous solution into the batching kettle, stir and mix evenly, soak for 6 hours, and separate the supernatant (this liquid can be used to supplement the next batch of soaked feathers Powder), get feather powder after acid leaching.

[0029] Feather powder after acid leaching is sent into another batching kettle, and a silicate aqueous solution with a mass concentration of 3% is pumped into the batching kettle (the mass of feather powder after acid leaching (kg) and the volume of silicate aqueous solution (L ) ratio of 1:8. The aqueous silicate solution is a mixture of sodium silicate and potass...

Embodiment 2

[0036] Take 500g of feather powder (commercially available chicken feather, duck feather, goose feather), crush the feather powder through a 40-mesh sieve, then take the feather powder and send it to the batching kettle, according to the quality of the feather powder (kg): the mass fraction is 1% The volume (L) ratio of the dilute hydrochloric acid aqueous solution is 1:10. Pump the dilute hydrochloric acid aqueous solution into the batching tank, stir and mix evenly, soak for 6 hours, and separate the supernatant to obtain the feather powder after acid leaching.

[0037] Feather powder after acid leaching is sent into another batching kettle, and a silicate aqueous solution with a mass concentration of 3% is pumped into the batching kettle (the mass of feather powder after acid leaching (kg) and the volume of silicate aqueous solution (L ) ratio of 1:12. The aqueous silicate solution is a mixture of sodium silicate and potassium silicate, wherein the mass ratio of sodium silic...

Embodiment 3

[0044] Get 500g of feather powder (commercially available chicken feathers, duck feathers, and goose feathers), pulverize the feather powder through a 20-mesh sieve, then get the feather powder and send it into the batching kettle, according to the quality (kg) of the feather powder: 1% dilute The ratio of the volume (L) of hydrochloric acid aqueous solution is 1:10, pump dilute hydrochloric acid aqueous solution into the batching tank, stir and mix evenly, soak for 6 hours, and separate the supernatant to obtain feather powder after acid leaching.

[0045] Feather powder after acid leaching is sent into another batching kettle, and a silicate aqueous solution with a mass concentration of 3% is pumped into the batching kettle (the mass of feather powder after acid leaching (kg) and the volume of silicate aqueous solution (L ) ratio of 1:15. The aqueous silicate solution is a mixture of sodium silicate and potassium silicate, wherein the mass ratio of sodium silicate to potassiu...

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Abstract

The invention discloses a method for preparing silk feather protein powder for preparation of protein filament, and relates to the technical field of cornifin protein preparation. The method comprises the following steps of preparation of acid leaching feather meal; preparation of feather meal alkaline solution; preparation of feather protein mixed liquor; preparation of feather protein precipitation liquid; and obtaining of the silk feather protein powder. Compared with the existing method, the protein content of the feather protein for silk drawing prepared by the method achieves above 95%, and the average molecular weight of the feather protein is 10000Da; and the protein solution for preparing adhesive protein filament has the characteristics of not generating peptone, being uniform in drawing silk, not breaking the silk and the like of the alkaline solution of high concentration, and is excellent feather protein powder for preparing protein filament.

Description

technical field [0001] The invention relates to the technical field of keratin protein preparation, in particular to a method for extracting feather protein powder for silk from feather meal. Background technique [0002] At present, the environmental pollution caused by the slaughtering industry in our country is quite serious, mainly because a large amount of feathers, blood, internal organs, hoof shells and other products will be produced while slaughtering livestock and poultry to produce meat, which has caused great pollution to the environment. Taking 2010 as an example, my country's poultry slaughtering industry reached about 11 billion. According to the calculation that each poultry can produce 0.10g of feathers, the feather production is about 1.1 million tons, which is equivalent to about 900,000 tons of protein resources. [0003] On the other hand, in today's increasingly scarce protein resources in our country, it is very important to make full use of feather pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07K1/14D01F4/00
Inventor 孙烽杨新明周茂林
Owner 成都天之蚕生物科技有限公司
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