Optimization Of Solid State Fermentation Of Mixed-Culture Of Penicillium Consortium For Cellulase And Lytic Polysaccharide Monooxygenases Production

In order to produce higher titre of cellulolytic enzyme cocktails, present study deals with four Penicillium consortium mixed-culture and to investigate their feasibility of producing higher cellulase and auxiliary enzymes via solid state fermentation (SSF). Among different lignocellulosic waste, rice straw was found to be the most suitable substrate. In addition, the Penicillium consortium in a mixture ratio of 1:1:1:1 which exhibited higher enzyme activity than the monoculture. Nitrogen sources of tryptone had significant influences on cellulase and lytic polysaccharide monooxygenases (LPMOs) production. The highest cellulase and LPMO activities were 16.65 +/- 1.83 U/g and 33.87 +/- 0.45 U/g, respectively. The SSF process condition used to obtain these activities were at 30 degrees C during 5 days. These results show that the optimized studied of mixed-cultivation system with Penicillium consortium have potential to be exploiting a complex consortium for the enrichment of cellulolytic enzyme cocktails for bioethanol processes.