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化学进展 2007, Vol. 19 Issue (0708): 1147-1152 前一篇   后一篇

• 专题论坛 •

提高纤维素酶水解效率和降低水解成本*

苏东海1；孙君社2**   

  1. 1.北京电子科技职业学院 北京 100029；

    2. 中国农业大学食品科学与营养工程学院 北京 100083

  • 收稿日期:2007-05-28 修回日期:1900-01-01 出版日期:2007-08-17 发布日期:2007-08-17
  • 通讯作者: 孙君社
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Enhancing Hydrolysis Efficiency of Cellulase and Reducing the Cost of Saccharification

Su Donghai1;Sun Junshe2**   

  1. 1.Beijing Electronic Science and Technology Vocational College,Beijing 100029,China;

    2.College of Food Science and Nutritional Engineering,China Agriculture University,Beijing 100083,China

  • Received:2007-05-28 Revised:1900-01-01 Online:2007-08-17 Published:2007-08-17
在我国可大量转化乙醇的是纤维质材料。纤维质材料转化乙醇的关键问题是纤维质转化为糖的过程，提高纤维素酶转化效率的方法有:(1)对纤维质材料进行预处理;(2) 研究纤维素酶的最适作用条件;(3)纤维素酶的重复利用;(4)合理的发酵工艺等。本文分析了纤维素的结构以及纤维素酶的作用方式，总结目前研究比较多的几种纤维质材料预处理方法，这几种方法对纤维素酶水解率的影响，并对研究纤维素酶的最适作用条件、纤维素酶的重复利用以及合理的发酵工艺进行了综述和分析。
关键词： 纤维素酶, 木质纤维素, 水解效率, 乙醇
In China the biomass that could be used to produce ethanol in large quantity is lignocellulose. The main challenges of ethanol production from lignocellulosic materials are the saccharification process by which lignocellulosic was transformed into sugar. The methods of enhancing hydrolysis efficiency of cellulase are as follows: (1) the lignocellulose is pretreated, (2) the optimal condition of cellulase hydrolysis is studied, (3) cellulase recycle use is conducted, (4) the reasonable fermentation process is adopted, and so on. The structures of cellulose and hydrolysis way of cellulase are analyzed. The progress in research on a few focused pretreatment and the effect of different pretreatment method on hydrolysis efficiency are mainly reviewed in this paper, at the same time the optimal condition of cellulase hydrolysis, cellulase recycle use, and the reasonable fermentation process are analyzed.
Key words: cellulase, lignocellulose, hydrolysis efficiency, ethanol

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