Profile of sugars during fed-batch SSCF process of wheat straw slurry at 16% DM (w/v). Saccharification profiles during a fed-batch SSCF process with untreated wheat straw slurry (discontinuous lines) and laccase-treated wheat straw slurry (continuous lines). Glucose (■) and xylose (▲) concentrations. The asterisk and arrows indicate addition of laccase and substrate, respectively. DM, dry matter; SSCF, simultaneous saccharification and co-fermentation.