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On the physicochemical properties of gellan gum

✍ Scribed by M. Milas; X. Shi; M. Rinaudo

Publisher
Wiley (John Wiley & Sons)
Year
1990
Tongue
English
Weight
746 KB
Volume
30
Category
Article
ISSN
0006-3525

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✦ Synopsis

This paper concerns the behavior in dilute and semidilute solutions of deacetylated gellan. The conformational transition, controlled by temperature and ionic strength, is investigated. It corresponds to a double-helix single-chain transition. Large ionic selectivity is observed in the helical conformation that controls the degree of aggregation upon gelation. Potentiometry and conductivity measurements are interpreted in terms of the Manning polyelectrolyte theory in the sol state.

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