文献类型：期刊文献

英文题名：Morphology, Solid Structure and Antioxidant Activity in Vitro of Angelica sinensis Polysaccharide-Ce(IV)

作者：Li, Kaiwen[1];Wang, Jie[1];Huang, Zizhen[1];Tan, Chunxia[1]

第一作者：Li, Kaiwen

通信作者：Tan, CX[1]

机构：[1]Gansu Univ Tradit Chinese Med, Lanzhou 730000, Peoples R China

第一机构：甘肃中医药大学

通信机构：[1]corresponding author), Gansu Univ Tradit Chinese Med, Lanzhou 730000, Peoples R China.|[10735]甘肃中医药大学;

年份：2023

卷号：20

期号：3

外文期刊名：CHEMISTRY & BIODIVERSITY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000930926100001)】；

基金：Acknowledgments The project supported by Project of Administration of Tradition of Chinese Medicine of Gansu Province (GZKP-2021-35); Gansu University of Traditional Chinese Medicine Scientific Research and Innovation Fund (2021KCZD-3); Gansu Provincial Science and Technology Plan Funded Natural Science Fund Project (22JR11RA119).

语种：英文

外文关键词：ASP; ASP-Ce; morphology; structure; antioxidant activity

摘要：Angelica Sinensis polysaccharide cerium (ASP-Ce) was prepared by Angelica Sinensis polysaccharide (ASP) and cerium ammonium nitrate (NH4)(2)Ce(NO3)(6). and its morphology, and solid structure was investigated. The antioxidant activity of the ASP-Ce complex in vitro was evaluated. The antioxidant activity of ASP-Ce complex in vitro was evaluated by the scavenging activity of 2,2-diphenyl-1-picrylhyrazyl radical (DPPH), hydroxyl radical (.OH) and superoxide anion radical (O-2(-).). The results showed that the ASP-Ce had the more ordered structure for inserting the Ce4+ into the polymer chain of ASP and there was little change in the conformation of the polysaccharide from Ce4+. Three free radical scavenging experiments proved that ASP-Ce had better antioxidant capacity than of ASP, especially on DPPH, and then on O-2(-).. The scavenging rate of ASP-Ce at 1.0 mg/mL on DPPH reached 71.6 %. Therefore, these results provide references for the further development and utilization of rare earth-polysaccharide.