半乳糖
木糖
阿拉伯糖
甘露糖
水解
生物化学
化学
酸水解
立体化学
发酵
作者
Xiang Cheng,Songshan Shi,Juan Su,Yongbin Xu,José Juan Ordaz-Ortíz,Ning Li,Jian Wu,Huijun Wang,Shunchun Wang
标识
DOI:10.1016/j.carbpol.2020.116065
摘要
The present study aimed at investigating the structural features and antitumor properties of a novel heteropolysaccharide (CSP-W-2) obtained from the fruit of Chaenomeles Speciosa (Sweet) Nakai. CSP-W-2 demonstrate that they mainly contain glucose, galactose, arabinose, mannose, xylose in a ratio of 3.7: 3.2: 1.7: 0.9: 0.4, with the molecular weight of 8.7 kDa. Its backbone is predominantly composed of 1,4 linked β-D-Galp, 1,4 linked α-D-Glcp, 1,4 linked β-D-Glcp, and 1,4,6-β-D-Glcp, additionally some branches contained 1,5 linked α-L-Araf, 1,4 linked β-D-Glcp, 1,3 linked α-L-Araf, and T linked β-D-Manp according to the results of partial acid hydrolysis analysis, methylation analysis, IR and NMR spectra. The antitumor properties study results demonstrated that CSP-W-2 had an inhibitory effect on HepG2 growth by enhancing the nucleus shrinkage and apoptosis. These findings indicate that CSP-W-2 had antitumor potential in the treatment of human liver tumor.
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