A microwave-assisted aqueous ionic liquid pretreatment to enhance enzymatic hydrolysis of Eucalyptus and its mechanism

被引：60

作者：

Hou, Xianfeng ^{[1
]}

Wang, Zhinan ^{[1
]}

Sun, Jin ^{[1
]}

Li, Meng ^{[1
]}

Wang, Shujie ^{[1
]}

Chen, Kai ^{[1
]}

Gao, Zhenzhong ^{[1
]}

机构：

[1] South China Agr Univ, Coll Mat & Energy, Guangzhou 510642, Guangdong, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2019年 / 272卷

关键词：

Microwave; Ionic liquid; Work mechanism; Enzymatic saccharification; Combined effect; LIGNOCELLULOSIC BIOMASS; WHEAT-STRAW; ALKALINE PRETREATMENT; BIOGAS PRODUCTION; SUGAR YIELDS; TRANSFORMATION; CELLULOSE; ACID; SACCHARIFICATION; DELIGNIFICATION;

D O I：

10.1016/j.biortech.2018.10.003

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

A novel pretreatment strategy based on combination of microwave and ionic liquid [TBA][OH] was developed for enhancing enzymatic hydrolysis of Eucalyptus sawdust. The sugar yield of pretreated sample achieved 410.67 mg/g in 48 h, which suffered from optimized microwave-assisted [TBA][OH] pretreatment. The work mechanism was illuminated by chemical composition, Fourier transform infrared spectroscopy (FTIR), C-13 cross polarization/magic-angle spinning solid state NMR (C-13 solid NMR), X-ray diffraction (XRD) and scanning electron microscope (SEM) analyses. The combined effect of microwave and [TBA][OH] leads to the violent deconstruction of lignin, removal of hemicelluloses, destruction of crystalline region and an eroded, pored and irregular micro-morphology. As a green, relatively inexpensive and high efficient pretreatment, microwaveassisted [TBA][OH] pretreatment has great potential in the field of bio-refinery.

引用

页码：99 / 104

页数：6

共 47 条

[1] Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis: A review [J].

Alvira, P. ;

Tomas-Pejo, E. ;

Ballesteros, M. ;

Negro, M. J. .

BIORESOURCE TECHNOLOGY, 2010, 101 (13) :4851-4861

[2] Understanding the structural and chemical changes of plant biomass following steam explosion pretreatment [J].

Auxenfans, Thomas ;

Cronier, David ;

Chabbert, Brigitte ;

Paes, Gabriel .

BIOTECHNOLOGY FOR BIOFUELS, 2017, 10

[3] High-resolution solid-state CPMAS NMR study of archaeological woods [J].

Bardet, M ;

Foray, MF ;

Trân, QK .

ANALYTICAL CHEMISTRY, 2002, 74 (17) :4386-4390

[4] Importance of chemical pretreatment for bioconversion of lignocellulosic biomass [J].

Behera, Shuvashish ;

Arora, Richa ;

Nandhagopal, N. ;

Kumar, Sachin .

RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2014, 36 :91-106

[5] Ionic liquid pretreatment of lignocellulosic biomass with ionic liquid-water mixtures [J].

Brandt, Agnieszka ;

Ray, Michael J. ;

To, Trang Q. ;

Leak, David J. ;

Murphy, Richard J. ;

Welton, Tom .

GREEN CHEMISTRY, 2011, 13 (09) :2489-2499

[6] Impact of Ionic Liquid Pretreatment Conditions on Cellulose Crystalline Structure Using 1-Ethyl-3-methylimidazolium Acetate [J].

Cheng, Gang ;

Varanasi, Patanjali ;

Arora, Rohit ;

Stavila, Vitalie ;

Simmons, Blake A. ;

Kent, Michael S. ;

Singh, Seema .

JOURNAL OF PHYSICAL CHEMISTRY B, 2012, 116 (33) :10049-10054

[7] Molecular structure and dielectric properties of some treated lignins [J].

Dawy, M ;

Shabaka, AA ;

Nada, AMA .

POLYMER DEGRADATION AND STABILITY, 1998, 62 (03) :455-462

[8] Ionic liquid solvent properties as predictors of lignocellulose pretreatment efficacy [J].

Doherty, Thomas V. ;

Mora-Pale, Mauricio ;

Foley, Sage E. ;

Linhardt, Robert J. ;

Dordick, Jonathan S. .

GREEN CHEMISTRY, 2010, 12 (11) :1967-1975

[9] Microwave-assisted co-pyrolysis of pretreated lignin and soapstock for upgrading liquid oil: Effect of pretreatment parameters on pyrolysis behavior [J].

Duan, Dengle ;

Ruan, Roger ;

Lei, Hanwu ;

Liu, Yuhuan ;

Wang, Yunpu ;

Zhang, Yayun ;

Zhao, Yunfeng ;

Dai, Leilei ;

Wu, Qiuhao ;

Zhang, Shumei .

BIORESOURCE TECHNOLOGY, 2018, 258 :98-104

[10]

Frederix M, 2016, GREEN CHEM, V18, P4189, DOI [10.1039/C6GC00642F, 10.1039/c6gc00642f]

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