Structure of a Bioactive Fructan from the Root of Cyathula officinalis  

作　　者：LIUYing-Hua HEKai-Ze YANGMin MENGYi-Wen PUQiang 

机构地区：[1]ChengduInstituteofBiology,TheChineseAcademyofSciences,Chengdu610041,China

出　　处：《Acta Botanica Sinica》2004年第9期1128-1134,共7页Acta Botanica Sinica（植物学报：英文版）

摘　　要：The structure of a bioactive fructan RCP isolated from the traditional Chinese medicinal herb Cyathula officinalis Kuan was determined by NMR, methylation, reductive-cleavage and GC-MS analyses. It was a highly branched fructan possessing a (2→1)-linked β-D-fructofuranosyl (Fruf) backbone with (2→6)-linked β-D-Fruf side chains, belonging to neokestose family. Of the 93.17% β-D-Fruf residues, 24.15% was terminal, 26.24% was 1-linked, 20.46% was 6-linked, and 22.32% was 1,6-linked. Of the 6.83% α-D-glucopyranosyl (Glcp) residues, 2.14% was terminal and 4.69% was 6-linked. A structural model was postulated for a degree of polymerization (DP) of 15.

关 键 词：果聚糖 生物活性 川牛膝 减数分裂 结构 根 

分 类 号：Q946.3[生物学—植物学]