Recovery of xanthan gum.

摘要

Xanthan gum is recovered from an aqueous fermented broth containing the gum by adding to the broth a sub-precipitant amount of organic solvent such an isopropanol, removing solids from the broth at 100°C or more eg. by filtration, and precipitating the gum by addition of more organic solvent. Heat degradation of the gum during the solids removal is thereby lessened.