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Method for preparing keratin polypeptide by liquefying keratin-enriched raw material

A technology of keratin polypeptide and keratin, which is applied to the preparation method of peptides, keratin, cytokeratin, etc., can solve the problems of high production cost, long production cycle, and complicated process, so as to improve production efficiency and product quality, The effect of low equipment cost and simple process operation

Active Publication Date: 2018-11-30
INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above conventional methods of extracting keratin all have the problems of long production cycle, complex process, heavy environmental burden, and high production cost. However, there are few reports on the use of physical liquefaction to extract keratin. Physical liquefaction can greatly improve production efficiency. And reduce costs, enabling mass production of low-cost high-quality keratin provides a new way

Method used

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  • Method for preparing keratin polypeptide by liquefying keratin-enriched raw material
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  • Method for preparing keratin polypeptide by liquefying keratin-enriched raw material

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Embodiment 1

[0057] Such as Figure 1~2 As shown, the present invention provides a kind of method that liquefaction is rich in keratin raw material and prepares keratin polypeptide, and it comprises the following steps:

[0058] Step 1, removing impurities and cleaning the animal raw material rich in keratin, drying the water, and preliminarily crushing it to a particle size of 3 cm to obtain a pretreated raw material, and liquefying the pretreated raw material to obtain a first material;

[0059] Among them, the raw materials are liquefied using two-stage liquefaction equipment, and the two-stage liquefaction equipment includes:

[0060] Primary liquefaction facility, which includes

[0061] A housing, which is a vertically arranged hollow cylinder structure with both ends open; the upper end of the housing is provided with a first cover that can be opened / closed, and the lower end is provided with a second cover that can be opened / closed; The first cover is provided with a feed port an...

Embodiment 2

[0084] Such as Figure 1~2 As shown, the present invention provides a kind of method that liquefaction is rich in keratin raw material and prepares keratin polypeptide, and it comprises the following steps:

[0085] Step 1, removing impurities and cleaning the animal raw material rich in keratin, drying the water, and preliminarily crushing it to a particle size of 5 cm to obtain the pretreated raw material, and liquefying the pretreated raw material to obtain the first material;

[0086] Among them, the raw materials are liquefied using two-stage liquefaction equipment, and the two-stage liquefaction equipment includes:

[0087] Primary liquefaction facility, which includes

[0088] A housing, which is a hollow cylinder structure vertically arranged at both ends; the upper end of the housing is provided with a first cover that can be opened / closed, and the lower end is provided with a second cover that can be opened / closed; The first cover is provided with a feed port and a...

Embodiment 3

[0112] Such as Figure 1~2 As shown, the present invention provides a kind of method that liquefaction is rich in keratin raw material and prepares keratin polypeptide, and it comprises the following steps:

[0113] Step 1, removing impurities and cleaning the animal raw material rich in keratin, drying the water, and preliminarily crushing it to a particle size of 4 cm to obtain the pretreated raw material, and liquefying the pretreated raw material to obtain the first material;

[0114] Among them, the raw materials are liquefied using two-stage liquefaction equipment, and the two-stage liquefaction equipment includes:

[0115] Primary liquefaction facility, which includes

[0116] A housing, which is a hollow cylinder structure vertically arranged at both ends; the upper end of the housing is provided with a first cover that can be opened / closed, and the lower end is provided with a second cover that can be opened / closed; The first cover is provided with a feed port and a...

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Abstract

The invention discloses a method for preparing keratin polypeptide by liquefying a keratin-enriched raw material. The method comprises the following steps: step one, liquefying the keratin-enriched raw material to obtain a first material; and step two, filtering the first material, collecting filtrate to obtain a second material, successively concentrating and spray-drying the second material to obtain the keratin polypeptide. The method is capable of using conventional steam as liquefying energy, processing the keratin raw material through two-stage liquefying, and finally preparing the keratin polypeptide. In a preparation process, the raw materials, such as strong acid, strong base and enzyme, are not used. The low-grade steam is used for liquefying the raw materials, such as animal toenails, feathers and horns, which are difficultly liquefied by using a conventional method. Production efficiency and product quality are remarkably improved, and the high-quality raw materials are provided for development of a high value-added product. The method is simple and convenient in technological operation, low in device cost, and beneficial to form large-scale production.

Description

technical field [0001] The invention relates to the technical field of livestock and poultry by-product processing. More specifically, the present invention relates to a method for preparing keratin polypeptides by liquefying keratin-rich raw materials. Background technique [0002] Keratin exists in animal hair, hair, scales, feathers, nails, hooves, horns, claws, warm, silk and other epidermis structures. Most of the original raw materials for keratin extraction are animal hair. In recent years, it has been discarded from various processing Extracting natural keratin from things such as eggshell membranes has become a research hotspot. Keratin is stable in nature, and its polymer chain can resist the activity of specific proteases. The disulfide bond formed by cysteine ​​and other molecular interactions increase the mechanical strength of the protein. The reactive sites of keratin are amide bonds, carboxyl groups and sulfoxide groups, etc. When the concentration of kerat...

Claims

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Application Information

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IPC IPC(8): C07K14/47C07K14/465C07K1/12
CPCC07K14/465C07K14/4741
Inventor 张春晖贾伟沈青山李侠郑乾坤王航米思
Owner INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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