Abstract
The study was aimed to analyze the biological transformation of cellulose in rice bran by Aspergillus flavus SB04 in SSF for 28 days. The culture conditions such as pH, temperature, moisture content were optimized for the effective production of the enzyme in SSF. Effect of carbon and nitrogen sources on cellulase production was further estimated in SMF and were quantified for 24hrs intervals for 7 days Maximum cellulase production for rice bran was observed to be high in glucose (carbon source) and yeast extract (nitrogen source) at initial moisture 75ml, pH 6, temperature 33°C and fermentation period was 14th day that was optimized using response surface methodology. The enzyme production was analyzed individually by dinitrosalicylic acid (DNS) method, Lowry protein estimation, and filter paper assay. The lignocellulosic degradation was observed and confirmed by FTIR and SEM. The degradation of cellulose periodically increases after 7 days, which influences the yield of cellulase enzyme.
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