Production method of high-transmittance glutamic acid

A production method and technology with high light transmittance, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc., can solve the problems of poor light transmittance, low glutamic acid purity, and complicated process.

Active Publication Date: 2017-02-08
HULUNBEIER NORTHEAST FUFENG BIOTECHNOLOGIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome defects such as low purity of glutamic acid, poor light transmittance and cumbersome proce

Method used

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Examples

Experimental program
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Embodiment 1

[0023] A method for producing glutamic acid with high light transmittance, comprising the steps of:

[0024] 1) Separation by disc separator: firstly, use the disc separator to separate the bacterial protein and serum from the glutamic acid fermentation liquid, control the speed at 4000-5000r / min, and take 5min to recover the bacterial protein precipitate and clear liquid. Liquid A;

[0025] 2) Membrane filtration for secondary removal of bacterial protein: Dilute the supernatant obtained in step 1) with an appropriate amount of circulating water, and then filter with a ceramic membrane with a membrane pore size of 50nm. The filtration temperature is 37°C and the membrane inlet pressure is 2.0bar , filtering and recovering bacterial protein and supernatant B;

[0026] 3) Impurity removal: The supernatant B obtained in step 2) is passed through the activated carbon column to absorb impurities, and the flow rate of the supernatant is controlled at about 10m³ / h to obtain the sup...

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Abstract

The invention belongs to the technical field of glutamic acid production, and discloses a production method of high-transmittance glutamic acid. The key technology comprises separating mycoprotein from a glutamic acid fermentation liquor through a disc centrifuge and carrying out a film filtration and activated carbon adsorption process to further separate mycoprotein and macromolecule impurities. Mycoprotein is subjected to spray granulation to produce mycoprotein feed, and a clear liquid is subjected to a concentration continuous iso-electric method to separate glutamic acid. The separated glutamic acid crystal is subjected to crystalloblastesis. The crystal undergoes a vacuum filter and is washed with clear water, impurities located in the crystal are removed through washing, and the wet glutamic acid is finally dried. The glutamic-acid-containing evaporated condensate water and washed crystal produced in the process are re-used for film filtration and taken as fermentation liquor washing water for cyclic utilization. The loss of glutamic acid is reduced, and the water cyclic utilization rate is increased.

Description

technical field [0001] The invention belongs to the technical field of glutamic acid production and relates to a production method of glutamic acid with high light transmittance. Background technique [0002] Glutamic acid is an acidic amino acid. The molecule contains two carboxyl groups, and its chemical name is α-aminoglutaric acid. Glutamic acid was discovered by Li Suxun in 1856. It is a colorless crystal with umami taste, slightly soluble in water, but soluble in hydrochloric acid solution, with an isoelectric point of 3.22. A large amount exists in cereal protein, and the content in animal brain is also more. Glutamic acid plays an important role in the protein metabolism process in organisms, and participates in many important chemical reactions in animals, plants and microorganisms. Sodium glutamate, commonly known as monosodium glutamate, is an important umami agent that enhances the fragrance. Sodium glutamate is widely used as a food flavoring agent, either...

Claims

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Application Information

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IPC IPC(8): C07C227/40C07C227/42C07C229/24
CPCC07C227/40C07C227/42C07C229/24
Inventor 杨雪董力青孙志宇许传高
Owner HULUNBEIER NORTHEAST FUFENG BIOTECHNOLOGIES CO LTD
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