Effect of acid pretreatment on different parts of corn stalk for second generation ethanol production

被引：127

作者：

Li, Ping ^{[1
]}

Cai, Di ^{[1
]}

Luo, Zhangfeng ^{[1
]}

Qin, Peiyong ^{[1
]}

Chen, Changjing ^{[1
]}

Wang, Yong ^{[1
]}

Zhang, Changwei ^{[1
]}

Wang, Zheng ^{[1
]}

Tan, Tianwei ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, Natl Energy R&D Ctr Biorefinery, Beijing 100029, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2016年 / 206卷

关键词：

Corn stalk; Acid pretreatment; Ethanol fermentation; DILUTE SULFURIC-ACID; LIQUID HOT-WATER; ENZYMATIC-HYDROLYSIS; STRUCTURAL FEATURES; HYDROTHERMAL PRETREATMENT; CARBONATE PRETREATMENT; CHEMICAL PRETREATMENT; RICE STRAW; SACCHARIFICATION; BIOETHANOL;

D O I：

10.1016/j.biortech.2016.01.077

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In this study, the effects of different parts of corn stalk, including stem, leaf, flower, cob and husk on second generation ethanol production were evaluated. FTIR, XRD and SEM were performed to investigate the effect of dilute acid pretreatment. The bagasse obtained after pretreatment were further hydrolyzed by cellulase and used as the substrate for ethanol fermentation. As results, hemicelluloses fractions in different parts of corn stalk were dramatically removed and the solid fractions showed vivid compositions and crystallinities. Compared with other parts of corn stalk, the cob had higher sugar content and better enzymatic digestibility. The highest glucose yield of 94.2% and ethanol production of 24.0 g L-1 were achieved when the cob was used as feedstock, while the glucose yield and the ethanol production were only 86.0% and 17.1 g L-1 in the case of flower. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：86 / 92

页数：7

共 35 条

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