How Gellan gum gelation is affected by acyl substituents: from hierarchical organization to simple viscoelastic behavior.
Gellan gum, a linear anionic exopolysaccharide, is widely employed as a gelling agent owing to its biocompatibility and tunable rheological properties. Its degree of acylation determines high acyl (HA-Gg) and low acyl (LA-Gg) forms, yielding hydrogels with different chemical-physical properties. Rheological measurement...