Impact of surfactant type for ionic liquid pretreatment on enhancing delignification of rice straw

被引：57

作者：

Chang, Ken-Lin ^{[1
,2
,3
,4
]}

Chen, Xi-Mei ^{[1
,2
]}

Wang, Xiao-Qin ^{[1
,2
]}

Han, Ye-Ju ^{[1
,2
]}

Potprommanee, Laddawan ^{[1
,2
]}

Liu, Jing-yong ^{[1
,2
]}

Liao, Yu-Ling ^{[4
]}

Ning, Xun-an ^{[1
,2
]}

Sun, Shui-yu ^{[1
,2
]}

Huang, Qing ^{[3
]}

机构：

[1] Guangdong Univ Technol, Sch Environm Sci & Engn, Guangzhou, Guangdong, Peoples R China

[2] Guangdong Univ Technol, Inst Environm Hlth & Pollut Control, Guangzhou, Guangdong, Peoples R China

[3] Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, 1799 Jimei Rd, Xiamen 361021, Peoples R China

[4] Natl Sun Yat Sen Univ, Inst Environm Engn, Kaohsiung, Taiwan

来源：

BIORESOURCE TECHNOLOGY | 2017年 / 227卷

关键词：

Pretreatment; Surfactant; Ionic liquid; Enzymatic hydrolysis; ENZYMATIC-HYDROLYSIS; SUGARCANE BAGASSE; CELLULOSE; BIOMASS; SACCHARIFICATION; PARAMETERS; ETHANOL; ALKALI; LIGNIN; AFM;

D O I：

10.1016/j.biortech.2016.11.085

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This work describes an environmentally friendly method for pretreating rice straw by using 1-Allyl-3-methylimidazolium chloride ([AMIM]Cl) as an ionic liquid (IL) assisted by surfactants. The impacts of surfactant type (including nonionic-, anionic-, cationic-and bio-surfactant) on the ionic liquid pretreatment were investigated. The bio-surfactant + IL-pretreated rice straw showed significant lignin removal (26.14%) and exhibited higher cellulose conversion (36.21%) than the untreated (16.16%) rice straw. The cellulose conversion of the rice straw pretreated with bio-surfactant + IL was the highest and the lowest was observed for pretreated with cationic-surfactant + IL. Untreated and pretreated rice straw was thoroughly characterized through SEM and AFM. In conclusion, the results provided an effective and environmental method for pretreating lignocellulosic substrates by using green solvent (ionic liquid) and biodegradable bio-surfactant. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：388 / 392

页数：5

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