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X‐ray and molecular modeling studies on the structure‐function correlations of polysaccharides
Author(s) -
Chandrasekaran Rengaswami
Publication year - 1999
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19991400104
Subject(s) - polysaccharide , helix (gastropod) , pectin , carrageenan , polymer , molecular model , molecule , xanthan gum , chemistry , function (biology) , materials science , crystallography , polymer science , stereochemistry , rheology , biochemistry , organic chemistry , biology , composite material , ecology , evolutionary biology , snail
X‐Ray fiber diffraction analysis and computer molecular modeling have revealed the three‐dimensional structures of several important industrially useful polysaccharides such as algin, carrageenan, galactomannan, gellan, pectin, welan, xanthan and xanthan:guaran complex. Consistent with their chemical structures, their molecular morphologies, which include single and double helices, are quite distinct. The helix‐helix associations are promoted by cations and/or water molecules and the patterns are not always the same. The polymer‐dependent structural details can be correlated with, and used to understand the molecular basis of, the observed physical properties.