Structural studies on the polysaccharide of mahua (Madhuca indica) flowers

✍ Scribed by Napur Sarkar; Bishnu P. Chatterjee

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 630 KB
• Volume: 125
• Category: Article
• ISSN: 0008-6215
• DOI: 10.1016/0008-6215(84)85149-6

✦ Synopsis

Graded hydrolysis of purified mahua polysaccharide, PS-AI, afforded four neutral and three acidic oligosaccharides, together with monosaccharides. These oligosaccharides were characterized through hydrolysis, methylation, and reduction with lithium aluminum hydride. On' methylation, Smith-degraded PS-AI gave 2,3,4,6-tetra-O-methyl-D-galactose

(5.5 mol), 2,3,4-tri-0-methyl-D-galactose (1 mol), 2,4,6-tri-0methyl+galactose

(2.2 mol), and 2,3,4-tri-O-methyl-Larabinose (0.9 mol). Based on these results, and those obtained from methylation, periodate oxidation, and chromium trioxide oxidation studies on the polysaccharide PS-AI, a tentative structure has been assigned to the average repeatingunit in the polysaccharide.