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Method for preparing solution of keratin

A keratin and solution technology, applied in the direction of animal/human peptides, peptide sources, etc., can solve problems such as non-compliance and environmental impact

Inactive Publication Date: 2005-08-31
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology uses a large amount of inorganic acids and reducing agents and other environmentally unfriendly reagents, and its post-processing will inevitably have a great impact on the environment.
None of these methods meet the requirements of green chemistry and green industry development

Method used

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  • Method for preparing solution of keratin
  • Method for preparing solution of keratin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] 1-methyl-3-ethylimidazolium chloride ionic liquid 100g

[0015] Goat hair 1%wt

[0016] Temperature 100°C

[0017] Stirring time 1 hour

[0018] Wash the goat hair with water and then soak and degrease it with ethanol for 2 hours, then add it into the 1-methyl-3-ethylimidazolium chloride ionic liquid according to the above weight ratio, heat up to the specified temperature, and stir at a constant temperature until The wool is completely dissolved, and a viscous, light brown homogeneous solution can be obtained.

Embodiment 2

[0020] 1-methyl-3-butylimidazolium chloride ionic liquid 80g

[0021] Coarse wool 5%wt

[0022] Temperature 110°C

[0023] time 5 hours

[0024] Rinse the coarse wool with water and then soak and degrease it with acetone for 10 hours, then add it into the 1-methyl-3-butylimidazolium chloride ionic liquid according to the above weight ratio, heat up to the specified temperature, and stir at a constant temperature until Coarse wool is completely dissolved, and a viscous, brown homogeneous solution can be obtained.

Embodiment 3

[0026] 1-ethyl-3-hexylimidazolium chloride ionic liquid 100g

[0027] Yak hair 8%wt

[0028] Temperature 120°C

[0029] time 10 hours

[0030] Wash the yak hair with water and then soak it in acetone to degrease for 24 hours, then add it to the ionic liquid of 1-ethyl-3-hexylimidazolium chloride according to the above weight ratio, heat up to the specified temperature, and stir at a constant temperature until the yak hair All dissolved to give a viscous, brown homogeneous solution.

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Abstract

A process for preparing ceratin solution includes such steps as washing wool of sheep and goat, camel hair, yak hair, pig hair, etc in water, immersing in alcohol or acetone for removing fat, adding it to chlorinated imidazole salt series ionized liquid, heating to 100-150 deg.C and stirring for 2-10 hrs.

Description

technical field [0001] The invention belongs to a preparation method of keratin solution. Background technique [0002] The basic components of keratin are various α-amino acids. Amino acids form long chains of polypeptides through peptide bonds, and these long chains form the space of keratin through horizontal connections such as disulfide bonds, hydrogen bonds, salt bonds, ester bonds, and van der Waals forces. configuration. Its structure is extremely complex and dense, so keratin is insoluble in common molecular solvents. The traditional method of dissolving keratin is to use a mixed solvent composed of reagents with different functions to destroy the interaction between protein peptide chains to prepare keratin solutions with different concentrations and molecular weight distributions. Specifically, there are oxidation method, reduction method, acid method, alkaline method, and copper amine solution method. Chinese patent 02155362.9 discloses "a keratin solution and...

Claims

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Application Information

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IPC IPC(8): C07K14/47
Inventor 谢海波张所波
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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