10.22376/ijpbs.2019.10.1.p1-12 Volume 7 Issue 1 2016 (January - March) Kine and colchicine t tic parameters play important role in microbial cellulase production. After mutation with UV irradiation he highest cellulase producing lessThan i greaterThan Aspergilluls fumigates lessThan /i greaterThan (Af1) stain is used to study the effect of culture conditions. It was found that Lactose 1%(W/V) was best carbon source, Carboxy methyl cellulose (CMC) 3% (W/V) as the best substrate concentration, pH 6 is found to be best suitable pH for high cellulase production. Peptone served as best nitrogen source at 35 lessThan sup greaterThan 0 lessThan /sup greaterThan C significant increase in cellulase production was observed. In compression to wild strain 30 to 90% increase in cellulase production concluding lessThan i greaterThan Aspergilluls fumigates lessThan /i greaterThan (Af1) as a better source of cellulase enzyme. DR. AMAL ALOTAIBI AND DR. JOHRA KHAN Aspergillus fumigatus, Kinetics, Carboxy methyl cellulase, Cellulase enzyme, Cellulose 193-200