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

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

 and
†,*
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 / Revised: 28 May 2011 / Accepted: 15 June 2011 / Published: 17 June 2011
(This article belongs to the Section Biochemistry, Molecular Biology and Biophysics)
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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 Dendrobium fimhriatum Hook.var.oculatum Hook; polysaccharide; antioxidant activity; in vitro
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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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.

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