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Crystallization of chondroitin sulfate from an aqueous solution
Author(s) -
Tanaka KiIchiro,
Katsura Nobuhiko
Publication year - 1979
Publication title -
biopolymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.556
H-Index - 125
eISSN - 1097-0282
pISSN - 0006-3525
DOI - 10.1002/bip.1979.360180203
Subject(s) - chemistry , aqueous solution , crystallization , chondroitin sulfate , sulfate , recrystallization (geology) , spherulite (polymer physics) , crystallography , chondroitin , diffraction , chemical engineering , organic chemistry , biochemistry , glycosaminoglycan , paleontology , biology , engineering , physics , optics
A new polymorph of sodium chondroitin‐4‐sulfate has been crystallized from an ethanolic aqueous solution at low pH. The crystallized spherulite specimens give considerably sharper x‐ray diffraction lines. The unit cell of the new polymorph is rectangular with dimensions (Å) a = 16.0, b = 24.1, and c = 26.0. The chondroitin‐4‐sulfate could be purified by recrystallization.