L-asparaginase is a therapeutic enzyme that converts L-asparagine into ammonia and L-aspartate. L-asparaginase is used to treat acute lymphoblastic leukaemia. In food manufacturing industries, it is used to inhibit the acrylamide formation. The current investigation has been performed to isolate L-asparaginase producing fungi from different medicinal plants and soil samples, through serial dilution. A total number of 15 fungal isolates were obtained from soil samples and 6 endophytic fungi isolated from medicinal plants. By performing screening of L-asparaginase 67% of positive isolates were obtained from endophytes and soil samples. Optimization of L-asparaginase production was performed for parameters such as pH, temperature, carbon and nitrogen source, and it was found that pH 6, 30˚C, 2 g of glucose, and 1 g of L-arginine is suitable for maximum enzyme production. By performing Sodium dodecyl sulphate polyacrylamide gel electrophoresis the molecular weight of an enzyme was determined to be approximately 11.2 kDa.
Czapek Dox’s medium, Endophytic fungi, L-Asparaginase, Nesslerization
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