Structure elucidation and antioxidant activity of a polysaccharide from Penthorum chinense Pursh
文献类型： 外文期刊
作者： Feng, Shiling 1 ; Xu, Xiaoyan 1 ; Li, Xiao 1 ; Deng, Guanfeng 1 ; Xia, Chen 3 ; Zhou, Lijun 1 ; Chen, Tao 1 ; Gao, Tao 1 ; Yuan, Ming 1 ; Cao, Xiaohan 1 ; Ding, Chunbang 1 ;
作者机构： 1.Sichuan Agr Univ, Coll Life Sci, Yaan 625014, Sichuan Prov, Peoples R China
2.Jiangnan Univ, State Key Lab Food Sci & Technol, Wuxi 214122, Jiangsu Prov, Peoples R China
3.Sichuan Acad Agr Sci, Inst Agroprod Proc Sci & Technol, Chengdu 610066, Sichuan Prov, Peoples R China
关键词： Penthorum chinense Pursh; Healthspan-promoting; Caenorhabditis elegans
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.2； 五年影响因子：7.8 ）
ISSN： 0141-8130
年卷期： 2024 年 264 卷
页码：
收录情况： SCI
摘要： Penthorum chinense Pursh is a traditional Miao medicine, mainly used in the treatment of liver diseases. In this study, an acidic heteropolysaccharide PCPP was isolated from P. chinense with an average molecular weight of 14.96 kDa. PCPP contained arabinogalactan and homogalacturonan segments, which is formed by 4-Gal p -(1 -* 5)-Ara f -1 and 3,6-Gal p -(1 -* 6)-Gal p -1,3 glycosidic linkage. A variety of side chains, including t-Glc p -(1 -* 4)Glc p- (1 -* 4)-Glc p A - 1, t-Xyl p -(1-*, and 2-Man p -(1 -* 4)-Gal p A-1,3 linked to the O -3 and O -6 of 3,6-Gal p . The antioxidant activity measurement in three models demonstrated that PCPP exhibited ROS scavenging capacity, antioxidant ability in the cellular model, enhancement of oxidative stress resistance, and healthspan-promoting effect in the worm model. These results provided the theoretical fundament of PCPP as a potential natural antioxidant.
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