Gellan gum - Solubility- and stability properties

4 important questions on Gellan gum - Solubility- and stability properties

At what temperature is gellan gum soluble?

It is soluble in hot water. In cold water it forms a dispersion.

By what is the solubility of gellan gum influenced?

  • Degree of acylation
  • Temperature
  • Presence of ions
  • pH


When gellan gum is soluble, it produces highly viscous solutions with shear thinning behaviour.

How is calcium and the amount of de-acylation in gellan gum related?

Calcium increases the hydration temperature of de-acylated gellan gum, whereas it has less effect on native, acylated gellan gum. De-acylated gellan gum is more sensitive to calcium than the native one.
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At what pH is gellan gum soluble?

At pH < 3.6, it is insoluble. For application in acidic products, gellan gum has to be hydrated at higher pH before acid is added.

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