| Electrochemical evaluation of the inhibitory effects of acetic acid on Saccharomyces cerevisiae |
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| 作者姓名： | 袁振宏 Zhao Jinsheng Yan Yongjie Yang Zhengyu |
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| 作者单位： | [1]Department of Chemical Engineering for Energy Resources, East China University of Science ＆ Technology, Shanghai 200237, P.R.China [2]Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100101, P.R. China |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 0 Introduction Fuel ethanol can be produced fromlignocellulose by chemical hydrolysis of lignocellulosic materialsfollowed by fermentation.One of the major problems with hydrolysates produced by acid hydrolysis is the poor fermentability caused by the presence of inhibitors in the hy- drolysates1].Acetic acidis one of the most important in- hibitors .It is abundant due tothe deacetylation of xylose andthe breakdown of lignin2]. The inhibitory effects of acetic acid on different yeast strain…
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| 关 键 词： | 电化学测量 乙酸 毒性 酵母 介体 |
| 收稿时间： | 2005-03-09 |
Electrochemical evaluation of the inhibitory effects of acetic acid on Saccharomyces cerevisiae |
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| Yuan Zhenhong,Zhao Jinsheng,Yan Yongjie,Yang Zhengyu.Electrochemical evaluation of the inhibitory effects of acetic acid on Saccharomyces cerevisiae[J].High Technology Letters,2006,12(2):203-206. |
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| Authors: | Yuan Zhenhong Zhao Jinsheng Yan Yongjie Yang Zhengyu |
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| Abstract: | A mediated electrochemical method was proposed for toxic evaluation of acetic acid on S. cerevisiae AS.380, and menadione/ferricyanide was chosen as the mediator system. The variance in electrochemical response in the absence and presence of increasing concentrations of acetic acid were used to indicate the inhibitory effects of weak acid on the yeast. The inhibitory effects of acetic acid on glucose consumption during menadione mediated reduction of ferricyanide were also measured for comparison purpose. The relative limiting current and the glucose consumption were reduced by 64.5 % and 61%, respectively, in the presence of 4g/L acetic acid at pH 4.0. The results showed that the electrochemical method can provide us with an appropriate and convenient tool for cytotoxic evaluation. |
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| Keywords: | electrochemical measurements acetic acid toxicity yeast mediator |
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