R.arrhizusNRRL 2286 was maintained on agar plates. It was grown at 30°C for 2 days and then storedat 4°C. After growth and sporulation, 10 ml distilled water was aseptically added to each agar plate which was then scraped to release the spores. This spore suspension was centrifuged at 4000 rpm for 10 min, the spores were washed and resuspended in 1 ml distilled water. 250ml spore suspension was used to provide aspore inoculum for each 250 ml shake-flask containing 50 ml medium. The flasks were then placed on a rotary shaker at 30°C and 150 rpm. The growth liquid medium contained per litre of distilled water: glucose variable (1 – 10 g), 0.2 g MgSO4.7H2O, 0.5 g K2HPO4,0.5gKH2PO4 and 2 g yeast extract. The pH of the medium was initially adjusted to 6 and then allowed to follow its natural course.