Quantitative ^(31)P NMR Analysis of Lignocellulosic Materials in Ionic Liquids

作     者：SUN Hui XU Ying-kai XU Guo-zhi 

作者机构：Department of Materials Science and Engineering National Center for Quality Supervision and Test of Plastic Products Beijing Technology and Business University Beijing 100048 P R. China Department of Surgery University of Pittsburgh Pennsylvania 15213 USA 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)

年 卷 期：2010年第26卷第3期

页      面：488-490页

核心收录：

学科分类：0832[工学-食品科学与工程（可授工学、农学学位）] 08[工学] 081304[工学-建筑技术科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 0836[工学-生物工程] 082203[工学-发酵工程] 0822[工学-轻工技术与工程] 083203[工学-农产品加工及贮藏工程] 

基　　金：Supported by the Scientific Research Foundation for the Returned Overseas Chinese Scholars  Ministry of Education  China and the Scientific and Technological Development Programs of of Beijing Municipal Education Commission (No.KM201010011004) 

主　　题：Structural characterization ^31p NMR Enzymatic mild acidolysis lignin(EMAL) 

摘      要：In an effort to utilize NMR technique for the analysis of the structural components of wood and biomasses such as lignin, we made a comparative study of lignin contents of several types of lignocellulosie materials both before and after enzymatic hydrolyses. To this end, Eucalyptus Globulus, Norway spruce thermomeehanieal pulp（TMP） corn stover and Eucalyptus kraft pulp were ball-milled and treated with cellulase to prepare materials with high lignin contents. These materials were analyzed via ^31p NMR in ionic liquids. The results show that the contents of various functional groups for the lignocellulosic materials after enzymatic hydrolyses are generally in agreement with those from their corresponding enzymatic mild acidolysis liginins（EMALs）, indicating that ^31p NMR analysis of lignocellulosic materials in ionic liquids is a promising method for quantitative characterization of lignocellulosic materials.