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Decolorizing method for extracting L-arginine by hair hydrolysis process

A technology of arginine and process, which is applied in the field of decolorization in the production of L-arginine extracted by hair hydrolysis process, can solve the problems of production cost reduction, L-arginine purity and low light transmittance, and achieve the production process The effect of simplification, large decolorization capacity and stable yield

Active Publication Date: 2006-05-24
湖北新生源生物工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a decolorization method for the production of L-arginine by the hair hydrolysis process, so as to solve the problems of low purity and light transmittance of the produced L-arginine. In addition, the overall cost of production will be lower. reduce

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  • Decolorizing method for extracting L-arginine by hair hydrolysis process
  • Decolorizing method for extracting L-arginine by hair hydrolysis process
  • Decolorizing method for extracting L-arginine by hair hydrolysis process

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Embodiment Construction

[0017] Below by embodiment the present invention will be further described.

[0018] The present invention selects D293 macroporous strongly basic quaternary ammonium type I anion exchange resin as the decolorizing column for decolorizing in the production of L-arginine extracted by the hair hydrolysis process, and its

[0019] Structural formula:

[0020]

[0021] Full exchange capacity mmoL / g (dry): ≥3.3

[0022] Wet true density (20°C) g / mL: 1.03~1.12

[0023] Wet apparent density g / mL: 0.65~0.75

[0024] Moisture content%: 50~60

[0025] Granularity%: ≥95

[0026] pH range: 0~14

[0027] Resin decolorization column aspect ratio: 1:4

[0028] The steps of the decolorization process are: column decolorization, pigment elution, resin regeneration, and operate according to the following indicators:

[0029] Column decolorization: the L-arginine to be decolorized liquid is fed into the decolorized column at a flow rate of 0.4-0.5BV / h (from top to bottom). During the f...

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Abstract

The invention relates to a decolorizing method for the production of extracting L-arginine by hair hydrolyzing process, relating to the technique of producing amino acid by protein hydrolyzation. The invention adopts D293 macroporous basic quaternary ammonium I-type ion exchange resin as decolorizing agent column, and operates in turn according to the steps of on-column decolorizing, pigment eluting and resin regenerating. The invention solves the decolorizing difficulty, and the produced L-arginine has the purity and photopermeability stably up to 99.9% and 98.5%, respectively and the producing flow is simple and the synthetic production cost is remarkably lower than that of the activated carbon decolorizing method.

Description

Technical field: [0001] The invention relates to the technology of producing amino acid by protein hydrolysis, especially the decolorization method in the production of L-arginine extracted by hair hydrolysis technology. Background technique: [0002] L-Arginine (L-Arginine), its chemical name is L-2-amino-5-guanidinopentanoic acid, and its molecular formula is C 6 h 14 N 4 o 2 , is a white crystalline powder. The international general standard of this product, such as the Japanese Ajinomoto AJI standard, wherein the purity is 98.5-100.3%, and the light transmittance is ≥98.5%. At present, L-arginine is mainly produced by bio-fermentation process and genetic engineering technology. The technology is difficult and the overall cost is high, and most of them are concentrated in foreign enterprises. It is an innovation in our country to hydrolyze the hair with concentrated hydrochloric acid to finally extract the substance. Using concentrated hydrochloric acid to hydrolyze...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C227/40C07C229/26
Inventor 王先兵曾庆群肖国安吕德祥
Owner 湖北新生源生物工程有限公司