In vitro Antioxidant of a Water-Soluble Polysaccharide from Dendrobium fimhriatum Hook.var.oculatum Hook

doi:10.3390/ijms12064068

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Int. J. Mol. Sci. 2011, 12(6), 4068-4079; doi:10.3390/ijms12064068

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In vitro Antioxidant of a Water-Soluble Polysaccharide from Dendrobium fimhriatum Hook.var.oculatum Hook

Aoxue Luo^† and Yijun Fan^†,*

Department of Landscape Plants, Sichuan Agriculture University, Chengdu 611130, China ^† These authors contributed equally to this work.

* Author to whom correspondence should be addressed.

Received: 22 April 2011; in revised form: 28 May 2011 / Accepted: 15 June 2011 / Published: 17 June 2011

(This article belongs to the Section Bioactives and Nutraceuticals)

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Abstract: A water-soluble crude polysaccharide (DFHP) obtained from the aqueous extracts of the stem of Dendrobium fimhriatum Hook.var.oculatum Hook through hot water extraction followed by ethanol precipitation, was found to have an average molecular weight (Mw) of about 209.3 kDa. Monosaccharide analysis revealed that DFHP was composed of mannose, glucose and galactose in a content ratio of 37.52%; 43.16%; 19.32%. The investigation of antioxidant activity in vitro showed that DFHP is a potential antioxidant.

Keywords: Dendrobium fimhriatum Hook.var.oculatum Hook; polysaccharide; antioxidant activity; in vitro

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MDPI and ACS Style

Luo, A.; Fan, Y. In vitro Antioxidant of a Water-Soluble Polysaccharide from Dendrobium fimhriatum Hook.var.oculatum Hook. Int. J. Mol. Sci. 2011, 12, 4068-4079.

AMA Style

Luo A, Fan Y. In vitro Antioxidant of a Water-Soluble Polysaccharide from Dendrobium fimhriatum Hook.var.oculatum Hook. International Journal of Molecular Sciences. 2011; 12(6):4068-4079.

Chicago/Turabian Style

Luo, Aoxue; Fan, Yijun. 2011. "In vitro Antioxidant of a Water-Soluble Polysaccharide from Dendrobium fimhriatum Hook.var.oculatum Hook." Int. J. Mol. Sci. 12, no. 6: 4068-4079.

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