New extraction process of L-proline

A proline and new process technology, applied in the field of L-proline extraction new process, can solve the problems of increasing environmental pressure, low light transmittance value of products, loss of proline, etc., to reduce acid and alkali consumption and drainage , high yield of finished product, and cost reduction effect

Inactive Publication Date: 2017-08-01
TONGLIAO MEIHUA BIOLOGICAL SCI TECH CO LTD
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Ion exchange needs a lot of acid and alkali to regenerate the resin, and it needs to be washed with a lot of water, which increases the environmental pressure, increases the cost of sewage treatment, and loses some proline in the wastewater
Due to the large amount of impurities in the material, the light transmittance of the product after ion exchange is low, which affects the product quality

Method used

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  • New extraction process of L-proline
  • New extraction process of L-proline

Examples

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Embodiment Construction

[0016] The first embodiment: figure 1 A new process is introduced and the following process steps can be seen in the figure:

[0017] 1. The fermentation liquid is filtered through a ceramic membrane, the membrane filtration temperature is 55-65°C, and the pressure is 2.0-4.0MPa. Filtrate and retained liquid are generated, and the bacteria enter the compound fertilizer system with the retained liquid; proline enters the next process with the filtrate, so as to be separated from the bacteria.

[0018] 2. The filtrate is decolorized by activated carbon, and the light transmittance of the filtrate is ≥60%; after anion and cation exchange, ammonium sulfate and other inorganic impurities are removed to obtain a relatively pure proline solution; anion and cation resins are respectively used in acid solution The lye is regenerated, and then rinsed with water to continue to be recycled; the acid solution after resin treatment contains ammonium sulfate, which enters the compound ferti...

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PUM

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Abstract

The invention relates to a chemical process, which is a new extraction process of L-proline, and provides the new extraction technology of the L-proline. The new extraction technology of the L-proline comprises the step of filtering a fermentation liquor through a ceramic membrane to obtain filter clogging liquid, and is characterized by decoloring the filter clogging liquid, and obtaining a finished product through ion exchange for less than or equal to two times. The new extraction technology of the L-proline has the beneficial effects that the acid-base dosage and the water discharge are reduced, energy conservation, consumption reduction and emission reduction are realized, the cost is greatly reduced, the finished product yield is high, and the quality is good.

Description

technical field [0001] The invention relates to a chemical process, namely a new process for extracting L-proline. Background technique [0002] L-proline (Pro) molecular formula: C5H9NO2, molar mass: 115.13g / mol, is one of the components of plant protein, and can widely exist in plants in a free state. Widely used in experimental reagents, medicines, cold-resistant plant breeding, tooth enamel restoration, etc. At present, microbial fermentation is generally used in the production of L-proline. The extraction process is that after the fermentation liquid is filtered through ceramic membranes, the filtrate is continuously subjected to three-step ion exchange. Ion exchange requires a large amount of acid and alkali to regenerate the resin, and it needs to be washed with a large amount of water, which increases the environmental pressure, increases the cost of sewage treatment, and loses part of the proline in the wastewater. Because there are many impurities in the material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D207/16
CPCC07D207/16Y02P20/10
Inventor 刘康乐王海雷叶树刚颜范东赵欢
Owner TONGLIAO MEIHUA BIOLOGICAL SCI TECH CO LTD
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