Microbial pretreatment of corn stover with Ceriporiopsis subvermispora for enzymatic hydrolysis and ethanol production

被引：168
作者：
Wan, Caixia [1 ]
Li, Yebo [1 ]
机构：
[1] Ohio State Univ, Ohio Agr Res & Dev Ctr, Dept Food Agr & Biol Engn, Wooster, OH 44691 USA
来源：
BIORESOURCE TECHNOLOGY | 2010年 / 101卷 / 16期
关键词：
Corn stover; Pretreatment; Ceriporiopsis subvermispora; Enzymatic hydrolysis; Ethanol; SOLID-STATE FERMENTATION; WHITE-ROT FUNGI; PHANEROCHAETE-CHRYSOSPORIUM; COTTON STALKS; ASPEN WOOD; DELIGNIFICATION; SACCHARIFICATION;
D O I：
10.1016/j.biortech.2010.03.070
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The feasibility of concurrent wet storage and microbial pretreatment of corn stover with Ceriporiopsis subvermispora for ethanol production was investigated in this study. The effects of particle size (515 mm), moisture content (45-85%), pretreatment time (18-35 d), and temperature (4-37 degrees C) on lignin degradation and enzymatic hydrolysis yield were studied. The results showed that C. subvermispora selectively degraded lignin up to 31.59% with a limited cellulose loss of less than 6% during an 18-d pretreatment. When 5 mm corn stover was pretreated at 28 degrees C with 75% moisture content, overall glucose yields of 57.67%, 62.21%, and 66.61% were obtained with 18-, 28-, and 35-d microbial pretreated corn stover, respectively. For the above conditions, the highest overall ethanol yield of 57.80% was obtained with 35-d-pretreated corn stover. Enzymatic hydrolysis yield was highly related to the lignin removal during microbial pretreatment. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：6398 / 6403
页数：6
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