Journal
BIORESOURCE TECHNOLOGY
Volume 214, Issue -, Pages 371-375Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.04.113
Keywords
Surfactant; Ionic liquid; Pretreatment; Enzymatic hydrolysis
Funding
- key projects of the Agricultural Science and Technology Projects of Fujian Province [2013N0038]
- One-Hundred Young Talents (Class A) of the Guangdong University of Technology [1143-220413105]
- Special Fund of University Discipline Construction of Department of Education of Guangdong Province [2014KTSP022]
- Youths Foundation of the Guangdong University of Technology [14QNZD005]
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The aim of this work was to study an environmentally friendly method for pretreating rice straw by using 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) as an ionic liquid (IL) assisted by surfactants. Different temperatures, reaction times, and surfactant concentrations were studied. Compared with [BMIM]Cl only pretreatment, the addition of 1% sodium dodecyl sulfate (SDS) and 1% cetyl trimethyl ammonium bromide (CTAB) increased lignin removal to 49.48% and 34.76%, respectively. Untreated and pretreated rice straw was thoroughly characterized through FTIR, XRD, and FE-SEM. Cellulose crystallinity and surface morphology of the rice straw were substantially altered after surfactant-assisted IL pretreatment. In conclusion, surfactant-assisted IL pretreatment is an effective method for producing fermentable sugars from lignocellulosic substrates. (C) 2016 Elsevier Ltd. All rights reserved.
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