Multinuclear NMR study on the sol-gel transition of gellan gum

M. Annaka, J. I. Honda, T. Nakahira, H. Seki, M. Tokita

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Abstract

A multinuclear NMR study was carried out to study the interaction between group I cations (Na+, K+, and Rb+) and gellan gum. It was found that the NMR parameters of 39K and 87Rb ions undergo an abrupt change in the vicinity of the sol-gel transition temperature. On the other hand, the NMR parameters of 23Na do not show any singular behavior. These results suggest that 39K and 87Rb ions (so-called gel-forming cations) selectively interact with gellan gum.

Original languageEnglish
Pages (from-to)25-30
Number of pages6
JournalProgress in Colloid and Polymer Science
Volume114
Publication statusPublished - Dec 1 1999

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All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Polymers and Plastics
  • Colloid and Surface Chemistry
  • Materials Chemistry

Cite this

Annaka, M., Honda, J. I., Nakahira, T., Seki, H., & Tokita, M. (1999). Multinuclear NMR study on the sol-gel transition of gellan gum. Progress in Colloid and Polymer Science, 114, 25-30.