链霉菌转化阿魏酸生产香草酸

许美玲1; 王 芳2*

北京化工大学学报(自然科学版) ›› 2007, Vol. 34 ›› Issue (s2) : 99-102.

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北京化工大学学报(自然科学版) ›› 2007, Vol. 34 ›› Issue (s2) : 99-102.
生物科学与技术

链霉菌转化阿魏酸生产香草酸

  • 许美玲; 王 芳*
作者信息 +

Streptomyces biotransformation of ferulic acid to vanillic acid

  • XU MeiLing1; WANG Fang2
Author information +
文章历史 +

摘要

选育一株链霉菌Streptomyces 2036,能将阿魏酸转化为香草酸。通过培养基和发酵条件的优化,确定较适培养条件为:葡萄糖5g/L,酵母粉5g/L;最佳发酵条件为:pH5.0,摇瓶装液量50mL/250mL,转速130r/min,发酵温度30℃。在该条件下,链霉菌可在转接培养16h后添加阿魏酸溶液,经12h可将1g/L的底物阿魏酸转化为0.261g/L的香草酸,摩尔转化率为30.2%。

Abstract

Streptomyces 2036 was screened for its ability to transform ferulic acid to vanillic acid. The optimal medium was found to contain glucose (5g/L) and yeast extract (5g/L). Cultures in 250mL flasks containing 50mL medium were brought to pH 5.0 and incubated by shaking at 150r/min at 30℃. Under these conditions, Streptomyces 2036 produced vanillic acid when ferulic acid was added 16h after inoculation. After a further 12h, 1g/L ferulic acid was transformed to 0.261g/L vanillic acid with a molar yield of 30.2%. It was shown that intracellular enzyme was mainly responsible for catalyzing the transformation of ferulic acid to vanillic acid.

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许美玲1; 王 芳2*. 链霉菌转化阿魏酸生产香草酸[J]. 北京化工大学学报(自然科学版), 2007, 34(s2): 99-102
XU MeiLing1; WANG Fang2. Streptomyces biotransformation of ferulic acid to vanillic acid[J]. Journal of Beijing University of Chemical Technology, 2007, 34(s2): 99-102

参考文献

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