| 玉米秸秆发酵燃料乙醇预处理条件的优化 |
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| 引用本文： | 汤斌,陈中碧,张庆庆,翟光雯,周逢云,陈阿娜,程旺开.玉米秸秆发酵燃料乙醇预处理条件的优化[J].食品与发酵工业,2008,34(6). |
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| 作者姓名： | 汤斌 陈中碧 张庆庆 翟光雯 周逢云 陈阿娜 程旺开 |
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| 作者单位： | 安徽工程科技学院生物化学工程系,微生物发酵安徽省工程技术研究中心,安徽,芜湖,241000 |
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| 摘 要： | 以玉米秸秆为原料,利用不同浓度的稀硫酸在均相反应器中对其进行高温水解,获取可发酵性还原糖。结果表明,以0.8%(w/w)的稀硫酸,在150℃,保温1h的预处理条件下,水解还原糖得率达57.3%。对处理过的玉米秸秆进行X射线衍射分析,发现其结晶度提高。该条件的处理液经纤维素酶与木聚糖酶酶解,还原糖得率可达92%以上。
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| 关 键 词： | 玉米秸秆 均相反应器 预处理 还原糖 结晶度 纤维素酶 |
Optimization of Pretreatment Condition for Corn Stover Fermentation Fuel Ethanol |
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| Tang Bin,Chen Zhongbi,Zhang Qingqing,Zhai Guangwen,Zhou Fengyun,Chen Ana,Cheng Wangkai.Optimization of Pretreatment Condition for Corn Stover Fermentation Fuel Ethanol[J].Food and Fermentation Industries,2008,34(6). |
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| Authors: | Tang Bin Chen Zhongbi Zhang Qingqing Zhai Guangwen Zhou Fengyun Chen Ana Cheng Wangkai |
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| Abstract: | In this study,raw material corn stover was hydrolyzed for fermentable sugar at high tempera- ture in the equal phase reactor using dilute-sulfuric acid.The results showed that the optimal condition was dilute-sulfuric acid concentration of 0.8%(w/w),temperature at 150℃for lh.The yield of reductive sugar was 57.3%.X-ray was then used to analyze pretreated corn straw.The result showed that its crystal-degree enhanced.Also the solution was hydrolyzed with cellulase and xylanase.The yield of reductive sugar excee- ded 92%ultimately. |
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| Keywords: | corn stover equal phase reactor pretreatment reductive sugar crystal-degree cellulase |
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