In vitro antioxidant and immunostimulating activities of polysaccharides from Ginkgo biloba leaves
文献类型： 外文期刊
作者： Ren, Qi 1 ; Chen, Jing 2 ; Ding, Yu 3 ; Cheng, Jianghua 4 ; Yang, Song 4 ; Ding, Zhenhua 2 ; Dai, Qianying 1 ; Ding, Zhie 1 ;
作者机构： 1.Anhui Agr Univ, Sch Tea & Food Sci & Technol, Hefei 230036, Anhui, Peoples R China
2.Anhui Inst Prod Qual Supervis & Inspect, Hefei 230051, Anhui, Peoples R China
3.Anhui Med Univ, Affiliated Hosp 1, Hefei 230022, Anhui, Peoples R China
4.Anhui Acad Agr Sci, Agroprod Proc Res Inst, Hefei 230031, Anhui, Peoples R China
关键词： Ginkgo biloba; Polysaccharides; Antioxidant activity; Immunostimulating activity
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：6.953； 五年影响因子：6.737 ）
ISSN： 0141-8130
年卷期： 2019 年 124 卷
页码：
收录情况： SCI
摘要： Ginkgo biloba leaves (GBLs) are used as herbal dietary supplements and medicine worldwide. In this study, crude GBL polysaccharides (GBPSs) were extracted and further purified on a DEAE (diethylaminoethanol) Sepharose Fast Flow column to obtain GBPS-2 and GBPS-3. The molecular weights of GBPS-2 and GBPS-3 were 672 and 723 kDa, respectively. GBPS-2 and GBPS-3 were typical acidic heteropolysaccharides, composed of mannose (Man), rhamnose (Rha), glucuronic acid (GIcA), galacturonic acid (GalA), glucose (Glc), galactose (Gal), and arabinose (Ara) (molar ratio: 0.08:0.12:0.16:0.06:0.11:1.00:032) and Man, Rha, GLcA, GalA, Gal, and Ara (molar ratio: 0.92:1.00:0.83:0.11:0.42:0.23), respectively. GBPS-2 and GBPS-3 exhibited limited scavenging abilities for the hydroxyl and 2,2-diphenyl-1-picrylhydrazyl radicals as well as noticeable scavenging effects on superoxide radicals and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) radicals. Furthermore, GBPS-2 and GBPS-3 significandy increased the phagocytosis of macrophages and promoted the production of NO, tumor necrosis factor (TNF)-alpha, interleukin (IL)-1 beta, and IL-6. Thus, GBPS-2 and GBPS-3 exhibit potential application as functional food supplements. (C) 2018 Published by Elsevier B.V.
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