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Composition analysis and antioxidant activity of polysaccharide from Dendrobium denneanum.

Abstract：

:Three polysaccharide fractions (DDP1-1, DDP2-1 and DDP3-1) were successfully purified from the crude polysaccharide of Dendrobium denneanum by DEAE-Cellulose and Sephadex G-200 column chromatography. The average molecular weights (Mws) of these fractions were 51.5, 26.1 and 6.95 kDa, respectively. Monosaccharide components analysis indicated that DDP1-1 and DDP2-1 were composed of arabinose, xylose, mannose, glucose and galactose in a molar ratio of 1.00:2.82:57.11:140.82:7.76 and 1.00:1.62:1.18:77.5:7.79. DDP3-1 was composed of arabinose, mannose, glucose and galactose in a molar ratio of 1.00:1.03:8.84:2.00. On the basis of antioxidant test in vitro, DDP2-1 exhibited the highest antioxidant ability among these samples.

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Fan Y,He X,Zhou S,Luo A,He T,Chun Z

doi

10.1016/j.ijbiomac.2009.04.019

subject

Has Abstract

pub_date

2009-08-01 00:00:00

pages

169-73

issue

2

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(09)00100-7

journal_volume

45

pub_type

杂志文章

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