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Updated: Aug 11, 2025

Preparation of Biopolymer Aerogels Using Green Solvents
Published on: July 4, 2016
Anion specific conformational change in aqueous gellan gum solutions
1Department of Chemistry, Kyushu University Fukuoka, Fukuoka 8190395, Japan; Center for Molecular Systems (CMS), Kyushu University Fukuoka, Fukuoka 8190395, Japan.
Abstract:
127I NMR is applied to investigate the motional state and the selective interaction of I- ions in tetramethylammonium form of gellan gum (TMA gellan), together with monitoring the conformational change by the optical rotation measurement. The experimental results indicate that I- ion promotes the conformational transition, and there exists the preferential affinity of I- ion for the ordered conformation of TMA gellan.
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