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Currently, the valorization of agroindustrial waste is of great interest. Moringa oleifera is a multipurpose tree whose softwood residues could be used as raw material for low-cost cellulase production. The aim of this study was to isolate, identify, and characterize microorganisms with cellulolytic activity in different carbon sources. We isolated and purified 42 microorganisms from M. oleifera biomass. Fungi presenting the largest hydrolytic halos in carboxymethylcellulose as a substrate were molecularly identified as Penicillium funiculosum (FG1), Fusarium verticillioides (FG3) and Cladosporium cladosporioides (FC2). The ability of these fungal strains to break down cellulose was assessed in a submerged fermentation using either amorphous CMC or crystalline form (Avicel). P. funiculosum and C. cladosporioides displayed similar endoglucanase (606 U/l) and exoglucanase (205 U/l) activities in the Avicel-containing …