Structural characterization and antioxidant activity in vitro of polysaccharides from angelica and astragalus

doi:10.1016/j.carbpol.2015.10.053

	Structural characterization and antioxidant activity in vitro of polysaccharides from angelica and astragalus
	Pu, Xiuying 1,2; Ma, Xiaolong 1,2; Liu, Lu 1,2; Ren, Jing 1,2; Li, Haibing 1,2; Li, Xiaoyue 1,2; Yu, Shuang 1,2; Zhang, Weijie 1,2; Fan, Wenbo 1,2
刊名	CARBOHYDRATE POLYMERS
	2016-02-10
卷号	137 页码:154-164
关键词	Polysaccharides Angelica and astragalus Purification Characterization Antioxidant activity
ISSN号	0144-8617
DOI	10.1016/j.carbpol.2015.10.053
英文摘要	In the present study, structural characterization and antioxidant activity of a fraction (AAP-2A) of polysaccharides from angelica and astragalus (AAP) were investigated. Characteriztion assay showed that AAP-2A had molecular weight (Mw), root-mean square (RMS) radius and polydispersity index (M-w/M-n) of 2.252 x 10(3) kDa, 28.4 nm and 1.038, respectively. There were infrared characteristic absorption peaks of polysaccharides in FT-IR spectroscopy. AAP-2A was composed of rhamnose (Rha), galactose (Gal), arabinose (Ara) and glucose (Glc) with a molar ratio of 1:2.13:3.22:6.18 in GC analysis. Methylation analysis combined with NMR spectroscopic analysis demonstrated that a preliminary structure of AAP-2A was proposed as follows: 1,3-linked Rhap, 1,3-linked Galp, 1,3-linked Araf, 1,5-linked Araf, 1,3,5-linked Araf, 1,4-linked Glcp and 1,4,6-linked Glcp interspersed with terminal Glcp. AAP-2A exhibited a surface with a sheet-like appearance in scanning electron microscope and stronger antioxidant capacity compared with AAP. (C) 2015 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[81260070] ; Project of Science and Technology of Lanzhou[2011-1-71]
WOS研究方向	Chemistry ; Polymer Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000366938200018
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33774]
专题	生命科学与工程学院
通讯作者	Pu, Xiuying
作者单位	1.Gansu Educ Dept, Key Lab Screening Evaluated & Adv Proc Tradit Chi, Lanzhou 730050, Peoples R China 2.Lanzhou Univ Technol, Coll Life Sci & Engn, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Pu, Xiuying,Ma, Xiaolong,Liu, Lu,et al. Structural characterization and antioxidant activity in vitro of polysaccharides from angelica and astragalus[J]. CARBOHYDRATE POLYMERS,2016,137:154-164.
APA	Pu, Xiuying.,Ma, Xiaolong.,Liu, Lu.,Ren, Jing.,Li, Haibing.,...&Fan, Wenbo.(2016).Structural characterization and antioxidant activity in vitro of polysaccharides from angelica and astragalus.CARBOHYDRATE POLYMERS,137,154-164.
MLA	Pu, Xiuying,et al."Structural characterization and antioxidant activity in vitro of polysaccharides from angelica and astragalus".CARBOHYDRATE POLYMERS 137(2016):154-164.