Mechanism of galactan gelation

Results of the investigations on galactan gelation carried out in the Institute of Organoelement Compounds are reviewed. It is shown that a helical conformation of kappa-carrageenan and agarose is not a prerequisite for gelation of solutions of these galactans. Gelation of agarose is completely gove...

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Bibliographic Details
Published in:Food hydrocolloids 1992, Vol.6 (1), p.25-43
Main Author: Braudo, E.E.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Food industries
Fundamental and applied biological sciences. Psychology
galactans
gelation
General aspects
Methods of analysis, processing and quality control, regulation, standards
physicochemical properties
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Summary:Results of the investigations on galactan gelation carried out in the Institute of Organoelement Compounds are reviewed. It is shown that a helical conformation of kappa-carrageenan and agarose is not a prerequisite for gelation of solutions of these galactans. Gelation of agarose is completely governed by hydrogen bonding. In kappa-carrageenan gelation the decisive role belongs to intermolecular coordination binding of cations promoting gelation (proved for K + ions).
ISSN:0268-005X
1873-7137
DOI:10.1016/S0268-005X(09)80056-8