Plant gums of the Genus Sterculia. Part IV. Acidic oligosaccharides from Sterculia urens gum
- 1 January 1970
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society C: Organic
- No. 16,p. 2256-2258
- https://doi.org/10.1039/j39700002256
Abstract
The acidic oligosaccharides formed on partial depolymerisation of Sterculia urens gum have been further examined. Previously uncharacterised oligosaccharides include 4-O-(α-D-galactopyranosyluronic acid)-D-galactose, O-(galactopyranosyluronic acid)-(1 → 2)-O-rhamnopyranosyl-(1→ 4)-galactose, O-(galactopyranosyluronic acid)-(1 → 2)-O-rhamnopyranosyl-(1 → 4)-galacturonic acid, and 3-O-(glucopyranosyluronic acid)-galacturonic acid from partial acid hydrolysis, and O-galactopyranosyl-(1 → 2)-O-(galactopyranosyluronic acid)-(1 → 4)-galactose from partial acetolysis. The configuration of the glycosidic linkage in 2-O-(α-D-galactopyranosyluronic acid)-L-rhamnose has been confirmed by degradation to 2-O-α-D-galactopyranosylglycerol.Keywords
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