Effect of Different Amino Acids as Nitrogen Sources on Polysaccharide Production ( Pullulan ) By Aureobasidium pullulans ATCC 42023

The effect of different amino acids as nitrogen sources in a basal synthetic medium on the production of pullulan by Aureobasidium pullulans ATCC 42023 was investigated. The results showed that glycine was the best nitrogen source among anthor amino acids tested in stimulating pullulan production . Maximum production of pullulan (21.16) g/L was obtained when basal synthetic supplements with 0.05% glycin as a nitrogen source.