Food and Fermentation Industries >

2014 , Vol. 40 >Issue 05: 27 - 31

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.2014.05.011

Food and Fermentation Industries

Bioconversion of ethylene glycol to glycolic acid by resting cells of Gluconobacter oxydans

  • WEI Sheng-hua ,
  • WANG Wei-jun ,
  • MENG Na ,
  • TAO Yu-gui ,
  • ZHU Bi-yu ,
  • GAO Qian-kun
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Online published: 2014-05-25

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Abstract

The conversion of ethylene glycol to glycolic acid by resting cells of Gluconobacter oxydans was investigated. Under batch conversion conditions,118. 5 g /L of glycolic acid could get from ethylene glycol after 30 h of reaction. The conversion was above 97%. The resting cells could successively convert three cycles. The average conversion was about 93. 3%. By fed-batch conversion,the yield can be further improved. Over 38h reaction,182. 5 g /L of glycolic acid was obtained,which greatly increased the product concentration in the conversion liquor.

Key words： glycolic acid; ethylene glycol; Gluconobacter oxydans; resting cells

Cite this article

WEI Sheng-hua , WANG Wei-jun , MENG Na , TAO Yu-gui , ZHU Bi-yu , GAO Qian-kun . Bioconversion of ethylene glycol to glycolic acid by resting cells of Gluconobacter oxydans[J]. Food and Fermentation Industries, 2014 , 40(05) : 27 -31 . DOI: 10.13995/j.cnki.11-1802/ts.2014.05.011

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