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Interaction of sodium and potassium ions withκ-carrageenan

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Summary

NMR and potentiometric methods revealed at least two types of interactions of Na+ and K+ ions with κ-carrageenan, viz., Coulombic interaction with polysaccharide sulfate groups, and a coordination one, leading, in the case of the Na+ ions, to formation of nonstoichiometric complexes. The absence of any correlation between the coordination binding density of the cations and their promoting effect on gelation process was demonstrated.

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Authors and Affiliations

  1. Nesmeyanov Institute of Organoelement Compounds, USSR Academy of Sciences, Moscow, USSR

    V. P. Yuryev, A. L. Blumenfeld, E. E. Braudo & V. B. Tolstoguzov

Authors
  1. V. P. Yuryev
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  2. A. L. Blumenfeld
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  3. E. E. Braudo
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  4. V. B. Tolstoguzov
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Yuryev, V.P., Blumenfeld, A.L., Braudo, E.E. et al. Interaction of sodium and potassium ions withκ-carrageenan. Colloid Polym Sci 269, 850–854 (1991). https://doi.org/10.1007/BF00657452

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  • DOI: https://doi.org/10.1007/BF00657452

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