A novel, repeated fed-batch, ethanol production system with extremely long term stability achieved by fully recycling fermented supernatants

被引:0
|
作者
Xin Lu
Yongfei Li
Zuoying Duan
Zhongping Shi
Zhonggui Mao
机构
[1] Southern Yangtze University,The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology
来源
Biotechnology Letters | 2003年 / 25卷
关键词
ethanol production; minimum wastewater discharge; repeated fed-batch; soluble inhibitors; supernatant recycle;
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摘要
Using Saccharomyces cerevisiae, a novel, repeated fed-batch ethanol production system from corn flour by fully recycling fermented supernatants is demonstrated. With recovery of ethanol by evaporation coupled with consecutive removal of the insoluble and soluble inhibitory substances accumulated, either completely or partially by filtration, the concentrations of the soluble inhibitors in the system could be maintained at their equilibria. As a result, a sustained high concentration of ethanol (up to 15% v/v) and significant pollution control performance were obtained.
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页码:1819 / 1826
页数:7
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