On the physicochemical properties of gellan gum

1990/01/01 by M. Milas, X. Shi, Xuefeng Shi +2 · 7 citations
Agricultural and Biological Sciences · Chemistry · #Aqueous solution #Chemical physics #Chemistry #Electrolyte #Gellan gum #Helix (gastropod) #Ion #Ionic bonding #Ionic conductivity #Ionic strength #Organic chemistry #Physical chemistry #Polymer #Polysaccharides Composition and Applications #Polysaccharides and Plant Cell Walls #Proteins in Food Systems #Thermodynamics

paper · doi:10.1002/bip.360300322

openalex publication_date 1990/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/22

Abstract

This paper concerns the behavior in dilute and demidilute 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 th at controls the degree of aggregation upon gelation. Potentiometry and conductivity measurements are interpreted in terms of the Manning polyelectrolyte theory in the sol state.

Cited by

• Designing polymers with sugar-based advantages for bioactive delivery applications. [europepmc]
• Microgelation imparts emulsifying ability to surface-inactive polysaccharides-bottom-up vs top-down approaches. [europepmc]
• Physicochemical and Rheological Characterization of Different Low Molecular Weight Gellan Gum Products and Derived Ionotropic Crosslinked Hydrogels. [europepmc]
• More than Antibiotics: Latest Therapeutics in the Treatment and Prevention of Ocular Surface Infections. [europepmc]
• Optimization of the Dose Rate Effect in Tetrazolium Gellan Gel Dosimeters. [europepmc]
• Biomaterials for extrusion-based bioprinting and biomedical applications. [europepmc]
• Influence of Reduced Molar Mass of Low-Acyl Gellan Gum on Weak Gel Formation and Rheological Properties. [europepmc]

Related

• Molecular origin of the two-step mechanism of gellan aggregation
• Gellan-Based Hydrogels and Microgels for culturage heritage: a rheological perspective
• Formulation and characterization of gellan–DEAE-dextran polyelectrolyte complex hydrogels
• Polyelectrolyte gels in poor solvent: Equilibrium and non equilibrium elasticity
• Chain connectivity and conformational variability of polymers: Clues to an adequate thermodynamic description of their solutions I: Dilute solutions