Food and Fermentation Industries >

2011 , Vol. 37 >Issue 06: 11 - 15

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.2011.06.029

Food and Fermentation Industries

Purifiuction of the Glutamic Acid of Secondary Crystallization Process(GASCP) Ⅰ:Optimization of Solution Mediated Transformation(SMT) Conditions

  • Cao Fu-ming ,
  • Zhang Jian-hua ,
  • Liu Zhong-hua ,
  • Zhang Hong-jian ,
  • Mao Zhong-gui
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Online published: 2011-06-25

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Abstract

GASCP was produced from the isoelectric liquor by evaporative crystallization process,in which a large amount of impurities such as pigments,(NH4)2SO4 remained.This made the product cannot be further purified to produce MSG.The solution mediated transformation(SMT) of L-glutamic acid is one of the ways to improve the quality of the GASCP.The effects of temperature,pH,ratio of GASCP/water and the use of activated carbon on the SMT of GASCP were investigated.Based on the researches,the ideal conditions for SMT of GASCP were determined as follows: temperature was 95℃,pH 4.5,the ratio of GASCP/water was 1∶ 2.5,the mount of activated carbon was 1%.

Key words： glutamic acid; solution mediated transformation; optimization

Cite this article

Cao Fu-ming , Zhang Jian-hua , Liu Zhong-hua , Zhang Hong-jian , Mao Zhong-gui . Purifiuction of the Glutamic Acid of Secondary Crystallization Process(GASCP) Ⅰ:Optimization of Solution Mediated Transformation(SMT) Conditions[J]. Food and Fermentation Industries, 2011 , 37(06) : 11 -15 . DOI: 10.13995/j.cnki.11-1802/ts.2011.06.029

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