Batch Production Kinetics of Xanthan Gum From Potato Waste

Abstract

Xanthan gum is a polysaccharide has been widely used in the pharmaceutical industry. Production of xanthan gum by a bacterium Xanthomonas compestris NCIM2961 was investigated from potato waste as a source of carbon. Production yield was improved by pretreatment of the potato residue with NaOH and HCl. The medium components considered are potato waste, yeast extract, peptone, FeCl₃, K₂HPO₄, MgSO₄.7H₂O, (NH₄)₂SO₄, Citric acid, H₃PO₃, CaCO₃, ZnCl₂, NH₄NO₃. The optimum production of 45g/l was found at 28 ˚C when bacterium culture was incubated for 96 hours.