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首页> 外文会议>International Conference on Energy, Environment and Sustainable Development >Comparison of Bacterial and Yeast Ethanol Fermentation Yield from Rice Straw
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Comparison of Bacterial and Yeast Ethanol Fermentation Yield from Rice Straw

机译：稻草细菌和酵母乙醇发酵产率的比较

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This study was to investigate the fermentation of rice straw using various microorganisms, i.e., the bacterium Zymomonas mobilis, a distillery yeast Saccharomyces cerevisiae and a co-culture of Zymomonas mobilis and Saccharomyces cerevisiae. Rice straw was pretreated with alkaline and followed by enzymatic hydrolysis using cellulase before fermentation by the bacterium and a distillery yeast. Results show that alkali pretreatment is appropriate for rice straw since this pretreatment condition can produce the maximum cellulose of 88.96% and reducing sugar content of 9.18 g/1. Furthermore, the ethanol yield after enzymatic hydrolysis (expressed as % theoretical yield) was 15.94-19.73% for the bacterium, 20.48-35.70% for yeast and 21.56-29.89% for co-culture. Therefore, the distillery yeast was a suitable microorganism for ethanol production from rice straw.
机译：本研究是使用各种微生物研究水稻秸秆的发酵，即细菌Zymomonas Mobilis，酿酒酵母酵母酿酒酵母酿酒酵母和Zymomonas Mobilis和Saccharomyces Cerevisiae的共同培养。用碱性预处理稻草，然后在细菌和蒸馏酵母发酵之前使用纤维素酶进行酶水解。结果表明，碱预处理适合稻草，因为这种预处理条件可产生88.96％的最大纤维素，还原含糖量为9.18克/ 1。此外，酶水解后的乙醇产率（表示为理论率）的细菌为15.94-19.73％，酵母的20.48-35.70％，共同培养21.56-29.89％。因此，酿酒酵母是稻草乙醇生产的合适微生物。

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