The synthesis of cellulases by Aspergillus fumigates ABK9 via submerged fermentation was enhanced using a sequential optimisation method based on statistical experimental designs. Plackett-Burman design (PBD) with two levels was used to screen for significant effects on cellulase output from various fermentation parameters. The carbon source (carboxy methyl cellulose) content, fermentation temperature, and medium pH were shown to be the most effective among 11 tested physical and chemical parameters. In order to correlate the relationship between these three variables and the cellulase activity, a polynomial model was created using the response surface Box-Behnken design, which involved three elements and the optimal concentrations of these significant parameters. The findings showed that the maximal production of CMCase, β-glucosidase, and FPase was 142.0, 36.9, and 29.2 U/ml, respectively, and that the CMC content, fermentation temperature, and beginning medium pH for cellulases synthesis were 1.15 %, 28°C and 5.5 respectively. When pulp was treated with 50 U/g Fpase, chromophores (2.43 OD; A237 nm) and hydrophobic substances (0.66 OD; A465 nm) were significantly removed. As the enzyme concentration increased, the ERIC values likewise showed a significant ink separation from the pulp.
Arpan Das (Mon,) studied this question.