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Solution conformation of laminaribioside and (1 → 3)-β-D-glucan from optical rotation

✍ Scribed by Christopher A. Duda; Eugene S. Stevens

Publisher
Wiley (John Wiley & Sons)
Year
1991
Tongue
English
Weight
471 KB
Volume
31
Category
Article
ISSN
0006-3525

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✦ Synopsis

A chiroptical method of conformational analysis is applied to linear ( 1 + 3 ) -p-D-glucans and the dimeric analogues pand a-laminaribioside. The method is based on a recently developed semiempirical calculational model for saccharide optical activity. We conclude that disaccharide conformational energy maps in the literature represent the effective po- tential energy surface in aqueous solution well. The positive optical rotation observed with long chains in dilute alkaline solution is not characteristic of any single-chain conformation, and must reflect chain association.

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