文献类型：期刊文献

英文题名：Chemical and structural characterization of alkaline-extractable hemicelluloses from various eucalyptus species

作者：Wei, Wen-bang[1,2] Li, Li-na[2] Chang, Liang[1] Wang, Zheng[1]

第一作者：Wei, Wen-bang

通信作者：Wang, Z[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Guangxi Ecoengn Vocat & Tech Coll, Dept Art Design, Liuzhou 545004, Guangxi, Peoples R China

年份：2013

卷号：130

期号：4

起止页码：2390-2398

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20133516677648);Scopus(收录号：2-s2.0-84883055529);WOS:【SCI-EXPANDED(收录号:WOS:000323249700021)】；

基金：This work was supported by the special fund for forestry-scientific Research in the Public Interest (No. 20100400410).

语种：英文

外文关键词：spectroscopy; polysaccharides; cellulose and other wood products

摘要：Eucalyptus species are currently one of the main feedstock for pulping and papermaking industry in China. In the present study, alkali-extractable hemicelluloses were isolated from different eucalyptus species (Eucalyptus camaldulensis, E. urophylla x grandis, and E. urophylla x E. tereticornis) at mild conditions prior to pulping. Structural characterization of these hemicellulosic polymers based on monosaccharide, molecular weight, Fourier transform infrared, H-1, C-13, and two-dimensional heteronuclear single quantum coherence nuclear magnetic resonance analysis revealed that these alkali-extractable polysaccharides shared the common structure composed of the (14)-linked--D-xylopyranosyl backbone with 4-O-methyl--D-glucuronic acid attached to O-2 of the xylose residues. The potential structures of the alkali-extractable hemicelluloses were proposed based on the comprehensive analysis. The well-characterized structures of these hemicelluloses could enlarge the industrial application of these hemicelluloses from the Eucalyptus species in a biorefinery process. (c) 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 130: 2390-2398, 2013