Abstract

Media optimization studies are carried out with the objective of maximising glucose isomerase production by Arthrobacter sp. The recommended media consists of 1.0% (w/v) xylose, 1.0% peptone, 0.5% yeast extract, 0.025% MgSO4·7H2O, 0.6% (NH4)2HPO4 and 0.2% KH2PO4. Activity of the enzyme produced in this media is 11.2 units/ml. Growth cycle for batch cultivation is studied and the lag period is 2 hours, followed by exponential phase extending upto 32 hours.

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