Overcome the recalcitrance of eucalyptus bark to enzymatic hydrolysis by concerted ionic liquid pretreatment

doi:10.1016/j.procbio.2015.09.009

	Overcome the recalcitrance of eucalyptus bark to enzymatic hydrolysis by concerted ionic liquid pretreatment
	Zhang, Chao; Xu, Wenjuan; Yan, Peifang; Liu, Xiumei; Zhang, Z. Conrad
刊名	PROCESS BIOCHEMISTRY
	2015-12-01
卷号	50 期号:12 页码:2208-2214
关键词	Concerted Ionic Liquid Pretreatment Biomass Recalcitrance Enzymatic Hydrolysis Lignin Removal
ISSN号	1359-5113
DOI	10.1016/j.procbio.2015.09.009
文献子类	Article
英文摘要	A novel pretreatment method-concerted ionic liquid (CIL) pretreatment was proposed and the mechanism of CIL pretreatment to overcome the recalcitrance of biomass was investigated in this study. The CIL refers to a combination of a protic ionic liquid (PIL) pyrrolidinium acetate ([Pyrr][AC]) and an aprotic ionic liquid (AIL) 1-butyl-3-methylimidazolium acetate ([BMIM][AC]) in varied proportion. In the CIL system, [Pyrr][AC] selectively dissolves lignin from biomass and [BMIM][AC] dissolves part of cellulose and hemicelluloses. Besides lignin, hemicelluloses are also an important factor of biomass recalcitrance. Optimized [BMIM][AC] fraction in the CIL pretreatment resulted in the efficient removal of lignocellulose complex while [Pyrr][AC] selectively fractionated lignin component. CILs exhibited superior efficiency in overcoming the recalcitrance of eucalyptus bark over that of the individual constituent ionic liquids. Compared to pretreatments by individual ILs of the pair, the CIL pretreatment increased the glucose yield by 30% from the cellulose of eucalyptus bark. High cellulose conversion of 91% (wt%) was achieved from enzymatic conversion of eucalyptus bark by optimizing the lignin and hemicelluloses removal. (C) 2015 Elsevier Ltd. All rights reserved.
WOS关键词	LIGNOCELLULOSIC BIOMASS ; CELLULOSE ; LIGNIN ; DIGESTIBILITY ; FEATURES ; BIOFUELS
WOS研究方向	Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000367125900026
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/171548]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Zhang, Z. Conrad
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Chao,Xu, Wenjuan,Yan, Peifang,et al. Overcome the recalcitrance of eucalyptus bark to enzymatic hydrolysis by concerted ionic liquid pretreatment[J]. PROCESS BIOCHEMISTRY,2015,50(12):2208-2214.
APA	Zhang, Chao,Xu, Wenjuan,Yan, Peifang,Liu, Xiumei,&Zhang, Z. Conrad.(2015).Overcome the recalcitrance of eucalyptus bark to enzymatic hydrolysis by concerted ionic liquid pretreatment.PROCESS BIOCHEMISTRY,50(12),2208-2214.
MLA	Zhang, Chao,et al."Overcome the recalcitrance of eucalyptus bark to enzymatic hydrolysis by concerted ionic liquid pretreatment".PROCESS BIOCHEMISTRY 50.12(2015):2208-2214.