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Planta Medica Letters 2015; 2(01): e57-e60
DOI: 10.1055/s-0035-1558167
Letter
Georg Thieme Verlag KG Stuttgart · New York

Structural Elements of an Antioxidative Pectic Arabinogalactan from Solanum virginianum

Washim Raja
Natural Products Laboratory, Department of Chemistry, The University of Burdwan, West Bengal, India
,
Kanika Ghosh
Natural Products Laboratory, Department of Chemistry, The University of Burdwan, West Bengal, India
,
Bimalendu Ray
Natural Products Laboratory, Department of Chemistry, The University of Burdwan, West Bengal, India
› Author Affiliations
Further Information

Publication History

received 10 April 2015
revised 22 August 2015

accepted 26 September 2015

Publication Date:
03 November 2015 (online)

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Abstract

The water-soluble polysaccharide-containing fraction from Solanum virginianum leaves upon anion exchange chromatography yielded a highly branched pectic arabinogalactan-containing fraction (F2). Herein, direct evidences for the (i) presence of a chain having 1,6-linked Gal units substituted at O-3, (ii) coexistence of Ara and Gal residues in the same molecule, (iii) existence of a chain containing 1,3-linked Galp residues substituted at C-6, and (iv) occurrence of 1,5-linked Araf residues substituted at O-3 were presented. This polysaccharide that showed a dose-dependent antioxidative property formed a water-soluble complex with bovine serum albumin. Thus, F2 could be used as a natural ingredient in functional food and pharmaceutical products to mollify oxidative stress.

Key words

Solanum virginianum - Solanaceae - polysaccharide structure - antioxidative effect - BSA-polysaccharide complex

Supporting Information

 

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