title: Impact of surfactant type for ionic liquid pretreatment on enhancing delignification of rice straw.
abstract: 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.
authors.affiliation: School of Environmental Science and Engineering and Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China; Key Laboratory of Urban Environmental and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China; Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan.
authors.forename: Ken-Lin
authors.initials: KL
authors.lastname: Chang
authors.affiliation: School of Environmental Science and Engineering and Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China.
authors.forename: Xi-Mei
authors.initials: XM
authors.lastname: Chen
authors.affiliation: School of Environmental Science and Engineering and Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China.
authors.forename: Xiao-Qin
authors.initials: XQ
authors.lastname: Wang
authors.affiliation: School of Environmental Science and Engineering and Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China.
authors.forename: Ye-Ju
authors.initials: YJ
authors.lastname: Han
authors.affiliation: School of Environmental Science and Engineering and Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China.
authors.forename: Laddawan
authors.initials: L
authors.lastname: Potprommanee
authors.affiliation: School of Environmental Science and Engineering and Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China.
authors.forename: Jing-Yong
authors.initials: JY
authors.lastname: Liu
authors.affiliation: Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan.
authors.forename: Yu-Ling
authors.initials: YL
authors.lastname: Liao
authors.affiliation: School of Environmental Science and Engineering and Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China.
authors.forename: Xun-An
authors.initials: XA
authors.lastname: Ning
authors.affiliation: School of Environmental Science and Engineering and Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China.
authors.forename: Shui-Yu
authors.initials: SY
authors.lastname: Sun
authors.affiliation: Key Laboratory of Urban Environmental and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China. Electronic address: qhuang@iue.ac.cn.
authors.forename: Qing
authors.initials: Q
authors.lastname: Huang
mesh_terms: D002480:Cellulase / Q000737:chemistry; D052578:Ionic Liquids / Q000737:chemistry*; D008031:Lignin / Q000737:chemistry / Q000302:isolation & purification*; D012275:Oryza / Q000737:chemistry*; D013501:Surface-Active Agents / Q000737:chemistry*
chemical_list: D052578:Ionic Liquids; D013501:Surface-Active Agents; D008031:Lignin; D002480:Cellulase
keywords: Enzymatic hydrolysis; Ionic liquid; Pretreatment; Surfactant