Journal of Environmental Biology

Polysaccharide structure of degraded glucomannan from Abrus precatorius Linn. seeds

R. B. Singh*¹ and Shelley²

¹Department of  Zoology, School of Life Sciences, Dr. B.R. Ambedkar University, Khandari Campus, Agra-282 002, India

²Department of Chemistry, S.V. College. Aligarh-202 001, India

(Received: July 01, 2005 ; Revised received: July 12, 2005 ; Accepted: August 19, 2005)

Abstract: Degraded glucomannan was isolated from Abrus precatorius Linn. seed polysaccharide (Papilionaceae). Acid hydrolysis and methylation studies produced certain degraded methyl sugars as, 2, 3, 6-tri-O-methyl-D-glucose and 2, 3, 6-tri-O-methyl-D-mannose in 1:4 molar ratio. On the basis of hydrolysis and methylation experiments, a polysaccharide structure has been assigned to the degraded glucomannan and to the parent glucomannan of Abrus precatorius Linn. seed.

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