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An efficient process for lignin extraction and enzymatic hydrolysis of corn stalk by pyrrolidonium ionic liquids

文献类型： 外文期刊

作者： Ma, Hui-Hui 1 ; Zhang, Bi-Xian 2 ; Zhang, Peng 1 ; Li, Shuang 1 ; Gao, Yun-Fei 2 ; Hu, Xiao-Mei 1 ;

作者机构： 1.Northeast Agr Univ, Coll Life & Sci, Harbin 150030, Peoples R China

2.Heilongjiang Acad Agr Sci, Harbin 150086, Peoples R China

关键词： Ionic liquids;Corn stalk;Pretreatment;Pyrrolidonium

期刊名称：FUEL PROCESSING TECHNOLOGY （ 影响因子：7.033； 五年影响因子：5.806 ）

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收录情况： SCI

摘要： In recent years, lignocellulosic biomass has drawn increasingly attention as a platform for its transformation into biofuels. However, the complex structures of lignocelluloses limit their conversion into fermentable sugars or other valuable products. In this work, a series of pyrrolidonium-based ionic liquids with a simple synthetic procedure were investigated for the pretreatment of corn stalk at 90 degrees C for 30 min. Both ionic liquids alone and ionic liquids with deionized water were studied. Fourier transform infrared spectroscopy (FTIR) analysis, scanning electron microscopy (SEM) analysis and nuclear magnetic resonance spectroscopy (NMR) analysis were employed to determine the chemical characteristics of regenerated lignin or cellulosic feedstock. A significant yield of lignin was achieved, as high as 19.07%, which accounted for 85.94% of the original lignin of corn stalk. A high yield of reducing sugar (91.81%) was obtained from regenerated cellulosic feedstock after enzymatic hydrolysis. High yields of glucose (79.63%) and cellobiose (13.66%) were observed as determined by high performance liquid chromatography (HPLC). (C) 2016 Elsevier B.V. All rights reserved.

  • 相关文献

[1]Factors Governing the Pretreatment Process of Lignocellulosic Biomass in an Acidic Pyrrolidonium Ionic Liquid. Hu, Xiao-Mei,Wang, Fu-Ling,Ma, Hui-Hui,Hu, Bao-Zhong,Zhang, Bi-Xian,Gao, Yun-Fei,Hu, Bao-Zhong. 2016

[2]Pyrrolidinium Ionic Liquids as Effective Solvents for Lignin Extraction and Enzymatic Hydrolysis of Lignocelluloses. Hu, Xiao-Mei,Li, Shuang,Ma, Hui-Hui,Zhang, Bi-Xian,Gao, Yun-Fei. 2016

[3]Knoevenagel Reactions in Ionic Liquids. Hu Xiao-Mei,Xiao Yi-Bo,Gao Yun-Fei,Zhang Bi-Xian,Zhao Yang. 2012

[4]Application of ionic liquid-based surfactants in the microwave-assisted extraction for the determination of four main phloroglucinols from Dryopteris fragrans. Li, Xiao-Juan,Zu, Yuan-Gang,Wang, Wei,Luo, Meng,Gu, Cheng-Bo,Zhao, Chun-Jian,Fu, Yu-Jie,Li, Xiao-Juan,Yu, Hui-Min,Gao, Chang.

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