Method for industrially producing L-tyrosine by using poultry feather as raw materials

A tyrosine and feather technology, applied in unknown raw materials, organic chemistry, pharmaceutical formulations, etc., can solve problems such as inability to meet required requirements, unreasonable process production steps, etc., to reduce traditional reaction time, improve antioxidant capacity, The effect of prolonging the shelf life

Active Publication Date: 2010-09-08
XINYI HANLING BIO ENG
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AI Technical Summary

Problems solved by technology

[0004] The pros and cons of the method for industrialized production of L-tyrosine using poultry feathers as raw materials basically depend on the level of content, but the process steps in the existing industrialized production technology are unreasonable and cannot meet the required requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] Embodiment: a kind of method that takes poultry feather as raw material industrialized production L-tyrosine, carries out according to following process step:

[0033] ①. Add hydrochloric acid to the prepared main ingredient poultry feathers, heat, then hydrolyze to obtain a hydrolyzed mixture;

[0034] ②. Separating the hydrolysis mixture for the first time to obtain the first hydrolysis separation liquid;

[0035] ③. Add soda ash to the first hydrolysis separation liquid and then heat it for the first neutralization. At this time, the first neutralization liquid is obtained. The precipitation in the first neutralization liquid is other amino acids, and the first neutralization The solute in the solution is L-tyrosine containing a small amount of cystine impurities;

[0036] ④. After the first neutralization solution undergoes the second separation, the first decolorization and the second neutralization in sequence, the second neutralization solution is obtained; ⑤. T...

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PUM

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Abstract

The invention discloses a method for industrially producing L-tyrosine by using poultry feather as raw materials, which comprises the following steps: adopting waste poultry feather after the production of poultry white bar products as major raw materials; carrying out hydrochloric acid catalysis, heating and heat-insulating protein in the hydrolytic poultry feather; and then, carrying out production through processes such as separation, neutralization, decoloration, concentration and the like to obtain pure natural safe and innoxious L-tyrosine finished products in white crystal solid type. The method greatly reduces the traditional reaction time of the industrial production of the L-tyrosine, and shortens the production period. The protein hydrolysis thoroughly solves the technical problems of low decomposition rate and incomplete decomposition of the traditional process. The antioxidant capability of the products per se is improved, and the storage lives of the products can be prolonged. The raw material yield is improved. Compared with the traditional manufacture technology, the invention improves the raw material yield by about 40 percent. The environment pollution caused by waste poultry feather is reduced, so the added value of the poultry processing is improved from the original 120 percent to 300 to 350 percent.

Description

technical field [0001] The invention relates to an amino acid extraction method, in particular to a method for processing and producing L-tyrosine from poultry feathers. Background technique [0002] Amino acid series products are in great demand in the market. The consumption of L-tyrosine in medicine in my country is about 500 tons, of which exports account for 30-40%. In recent years, the annual consumption growth rate is about 10%, 50% of which is for export, mainly to the United States and Europe, and the export volume has increased by about 12% every year. At present, domestic production cannot meet the supply. With the development of modern biotechnology, L-tyrosine has become more and more widely used. In recent years, the side effects of antibiotics on the human body are particularly obvious, and the World Health Organization has paid special attention to the people of our country. Amino acid drugs have no side effects on the human body. They can not only treat bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C229/36A61K35/36A61P5/16A23L1/305A23L33/175
Inventor 陈士安
Owner XINYI HANLING BIO ENG
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