title: In vitro and in vivo antioxidant activity of a water-soluble polysaccharide from Dendrobium denneanum.
abstract: The water-soluble crude polysaccharide (DDP) obtained from the aqueous extracts of the stem of Dendrobium denneanum through hot water extraction followed by ethanol precipitation, was found to have an average molecular weight (Mw) of about 484.7 kDa. Monosaccharide analysis revealed that DDP was composed of arabinose, xylose, mannose, glucose and galactose in a molar ratio of 1.00:2.66:8.92:34.20:10.16. The investigation of antioxidant activity both in vitro and in vivo showed that DDP is a potential antioxidant.
authors.affiliation: Department of Landscape Plants, Chengdu Campus of Sichuan Agriculture University, Chengdu 611130, China.
authors.forename: Aoxue
authors.initials: A
authors.lastname: Luo
authors.forename: Zhongfu
authors.initials: Z
authors.lastname: Ge
authors.forename: Yijun
authors.initials: Y
authors.lastname: Fan
authors.forename: Aoshuang
authors.initials: A
authors.lastname: Luo
authors.forename: Ze
authors.initials: Z
authors.lastname: Chun
authors.forename: Xingjin
authors.initials: X
authors.lastname: He
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000737:chemistry / Q000378:metabolism*; D052160:Benzothiazoles / Q000737:chemistry / Q000378:metabolism; D031667:Dendrobium / Q000033:anatomy & histology / Q000737:chemistry*; D017665:Hydroxyl Radical / Q000737:chemistry / Q000378:metabolism; D051379:Mice; D009005:Monosaccharides / Q000032:analysis; D019906:Nuclear Magnetic Resonance, Biomolecular; D010936:Plant Extracts / Q000737:chemistry / Q000378:metabolism; D018547:Plant Stems / Q000737:chemistry; D011134:Polysaccharides / Q000737:chemistry / Q000378:metabolism*; D011897:Random Allocation; D017550:Spectroscopy, Fourier Transform Infrared; D013451:Sulfonic Acids / Q000737:chemistry / Q000378:metabolism; D013482:Superoxide Dismutase / Q000378:metabolism; D014867:Water / Q000737:chemistry*
chemical_list: D000975:Antioxidants; D052160:Benzothiazoles; D009005:Monosaccharides; D010936:Plant Extracts; D011134:Polysaccharides; D013451:Sulfonic Acids; D014867:Water; C002502:2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid; D017665:Hydroxyl Radical; D013482:Superoxide Dismutase