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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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        Abstract - Issue Apr Supplement 2007, 28 (2)                                                                                                             Back


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.

Key words: Degraded methyl sugars, Abrus precatorius, Polysaccharide


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