Department of Chemistry, University of Dhaka, Dhaka-1000, Bangladesh
Department of Chemistry, Swedish University of Agricultural Sciences, S-750 07, Uppsala, Sweden
Abstract:
The structure of an acidic polysaccharide isolated from Abroma augusta root bark was determined by sugar and methylation analyses and high resolution 1H- and 13C-NMR spectroscopy. The main chain of the polysaccharide was composed of 1,2-linked -
-rhamnopyranose and 1,4- or 1,3-linked -
-galacturonic acid residues. The terminal β-
-glucuronic acid residue was attached to the 3- and/or 4-position of the -
-galacturonic acid residue.