New treatment method of threonine mother liquid

A technology for treating threonine mother liquor, which is applied in the field of threonine mother liquor treatment, can solve the problems of large one-time investment in chromatographic separation, low threonine content in extract liquid, and large consumption of ion-free water, etc., to improve the working environment , Improve the extraction yield and standardize the production process

Active Publication Date: 2014-04-16
HULUNBEIER NORTHEAST FUFENG BIOTECHNOLOGIES CO LTD
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Problems solved by technology

However, the one-time investment of chromatographic separation is large, and the cost recovery period is long; at the same time, this method needs to pretreat the raw materials, which will consume a large amount of ion-free wa

Method used

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Embodiment Construction

[0038] A method for treating threonine mother liquor, comprising the following steps:

[0039] (1) Take the mother liquor of threonine, keep the temperature of the mother liquor at 30-50°C, slowly add more than 95% ethanol solution and stir, and control the flow rate of ethanol at 50% of the volume of the mother liquor added per hour, the total flow of ethanol is the same as The volume of the mother liquor is the same; during the feeding process of ethanol, cooling water is used to cool the mother liquor outside the reactor, and the stirring is stopped after the temperature drops to 10°C, and the feed liquid is obtained by standing for 4 hours;

[0040] (2) The feed liquid obtained in step (1) is subjected to natural sedimentation for solid-liquid separation to obtain sediment and supernatant;

[0041] (3) Add water to dissolve the sediment obtained in step (2) (1 times the quality of water) and then pump it into the decolorization tank for decolorization treatment. Add powder...

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Abstract

The invention relates to a new treatment method of threonine mother liquid. The method comprises a step of adding an alcohol substance into a threonine mother liquid solution obtained in an extraction process of threonine mother liquid so as to reduce the solubility and separate out threonine, and a compound microbial bacterial agent is added into other impurities to reach the emission standard. The method provided by the invention has the advantages of low production cost, high threonine extraction yield and little wastewater discharge, is economical and environment-friendly and has a broad application prospect.

Description

technical field [0001] The invention relates to the technical field of threonine extraction in the biological fermentation industry, and specifically provides a new method for treating threonine mother liquor. Background technique [0002] Threonine (Threonine, abbreviated as Thr), scientific name 2-amino-3-hydroxybutyric acid, belongs to aliphatic amino acid, slightly sweet, named for its structure similar to threose, is a kind of human, animal and plant protein Essential amino acids are mainly used in medicine, chemical reagents, and nutritional enhancers. They can strengthen dairy products, restore human fatigue, and promote growth and development. In recent years, with the development of the economy, the market demand for threonine has continued to grow steadily, and it is one of the amino acid varieties with the fastest growing demand. Especially, the use in chemistry and biochemistry, food additives, feed additives, etc. has grown rapidly. It replaces tryptophan a...

Claims

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Application Information

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IPC IPC(8): C02F9/14C07C229/22C07C227/40
Inventor 丁兆堂王均成马仕敏张传森汲广习黄敏
Owner HULUNBEIER NORTHEAST FUFENG BIOTECHNOLOGIES CO LTD
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