Compound protein and preparation method and application thereof

A technology of compounding protein and keratin, which is applied in the direction of single-component protein rayon, textile and papermaking, rayon made of viscose, etc., can solve the problems of easy loss of protein and low protein content, and achieve great application value , the preparation method is simple, the operation is convenient

Inactive Publication Date: 2021-02-05
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is also the fact that the extracted protein is easily lost during the spinning process, resulting in a lower final protein content

Method used

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  • Compound protein and preparation method and application thereof
  • Compound protein and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0083] A kind of zein supernatant, its preparation method is as follows:

[0084] (1) Mix water and corn yellow powder (produced by Hebei Guangyu Starch Sugar Industry Co., Ltd.) with a mass ratio of 1:6.5 at 35°C for 0.5h, and filter with a plate and frame filter press to obtain a liquid-carrying rate of 40%. Moist corn raw material;

[0085] (2) the wet corn raw material obtained in step (1) and ethanol are 60 ℃, stirring speed under the condition of 280r / min with the mass percentage of 1:0.75:2.5 being 6% sodium hydroxide aqueous solution, Mix for 2 hours and filter to obtain the zein supernatant.

preparation example 2

[0087] A kind of wool keratin supernatant, its preparation method is as follows:

[0088] (1) the mass ratio is 1:10 dispersant solution (solvent is water, and the carbonamide that comprises concentration is 2mol / L, concentration is that 1mol / L benzene sulfonate and concentration are the mixed solution of 1mol / L sulfite ) and wool were mixed at 70°C for 1.75h, and filtered by a centrifuge to obtain wet wool;

[0089] (2) Mix the wet wool obtained in step (1) with a mass ratio of 1:4.5 and 9% aqueous sodium hydroxide solution at 60° C. and a stirring speed of 200 r / min for 2 hours, filter, Obtain the wool keratin supernatant.

preparation example 3

[0091] A kind of zein supernatant, its preparation method is as follows:

[0092] (1) Mix water and corn yellow powder (produced by Hebei Guangyu Starch Sugar Industry Co., Ltd.) with a mass ratio of 1:6 at 30°C for 0.25h, and filter with a plate and frame filter press to obtain a liquid carrying rate of 30%. Moist corn raw material;

[0093] (2) the wet corn raw material and ethylene glycol that the mass percentage that is 1:0.5:1 is 5% sodium hydroxide aqueous solution, step (1) obtains at 40 ℃, stirring speed is 150r / min Mix under the condition for 1.5h, filter to obtain the zein supernatant.

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Abstract

The invention provides a compound protein and a preparation method and application thereof. The compound protein is obtained by reaction of corn protein, animal hair keratin and a chain extender, andthe compound protein with higher molecular weight is obtained by grafting reaction of the corn protein, the animal hair keratin and the chain extender; when the composite protein is spun into fibers,the protein is not easy to lose, so that the prepared fiber product is high in protein content, and has excellent drapability, antistatic property, moisture absorption property, moisture conductivity,air permeability and the like; the preparation method of the compound protein is simple, convenient to operate and suitable for mass production and extraction.

Description

technical field [0001] The invention belongs to the technical field of protein preparation, and in particular relates to a composite protein and its preparation method and application. Background technique [0002] Wool, camel hair, human hair, bristle, poultry feather and animal hair are mainly composed of keratin, and the wool without textile value is dissolved to prepare a solution, which can be reprocessed into various fibers by artificial spinning technology, which can reach a limit The purpose of resource reuse, while the raw material used in the production of corn gluten is the offcuts of corn processing and preparation of starch. The raw material is easy to get, and it is spun with ordinary production equipment and technology. The added value of by-products has high social and economic benefits. [0003] At present, there are many reports about extracting protein from corn raw materials in vegetable protein. CN101024670 discloses an alkali-soluble zein and its prepa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L89/00D01F2/08D01F4/00
CPCC08L89/00D01F2/08D01F4/00C08L2205/025
Inventor 段东平任玉枝李婷李焱
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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