期刊
BIORESOURCE TECHNOLOGY
卷 100, 期 3, 页码 1279-1284出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2008.08.045
关键词
Microwave; Pretreatment; Rice straw; Enzymatic saccharification; Response surface methodology (RSM)
资金
- Natural Science Foundation of China [3037863]
- Key Technologies Research and Development Program of Anhui Province [07010202076]
In this study, Box-Behnken design and response surface methodology were employed to plan experiments and optimize the microwave pretreatment of rice straw. Experimental results show that microwave intensity (MI), irradiation time (IT) and substrate concentration (SC) were main factors governing the enzymatic saccharification of rice straw. The maximal efficiencies of cellulose, hemicellulose and total saccharification were respectively increased by 30.6%, 43.3% and 30.3% under the optimal conditions of MI 680 W, IT 24 min and SC 75 g/L. The chemical composition analysis of straw further confirmed that microwave pretreatment could disrupt the silicified waxy surface, break down the lignin-hemicellulose complex and partially remove silicon and lignin. (C) 2008 Elsevier Ltd. All rights reserved.
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