Enhanced cellulase production by Penicillium oxalicum for bio-ethanol application

•A potent cellulolytic fungal strain was isolated and identified as P. oxalicum.•Media engineering enhanced cellulase production by 1.7-fold.•In bioreactor incubation time was reduced for producing same cellulase titer.•In-house cellulase showed equal hydrolysis potential as that of commercial ones....

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