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

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

doi:10.1007/3-540-48349-7_4

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

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

Condensed Matter Physics

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

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 language	English
Pages (from-to)	25-30
Number of pages	6
Journal	Progress in Colloid and Polymer Science
Volume	114
DOIs	https://doi.org/10.1007/3-540-48349-7_4
Publication status	Published - 1999

All Science Journal Classification (ASJC) codes

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

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title = "Multinuclear NMR study on the sol-gel transition of gellan gum",

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.",

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AU - Annaka, M.

AU - Honda, J. I.

AU - Nakahira, T.

AU - Seki, H.

AU - Tokita, M.

PY - 1999

Y1 - 1999

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AB - 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.

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JO - Progress in Colloid and Polymer Science

JF - Progress in Colloid and Polymer Science

ER -

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

Abstract

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