Fed-batch SSCF processes of wheat straw slurry at 16% DM (w/v). Time course for fed-batch SSCF process of untreated slurry (discontinuous lines) and laccase-treated slurry (continuous lines) (supplemented after 21 hours of inoculation). (A) Cell viability (●) in terms of CFU/mL. (B) Glucose (■) and xylose (▲) concentrations. (C) Ethanol (♦) concentration. The asterisk and arrows indicate addition of laccase and substrate, respectively. CFU, colony-forming unit; DM, dry matter; SSCF, simultaneous saccharification and co-fermentation.