Figure 4

Hydrothermal pretreatment at 180°C using 2.0% w/w solids concentration. Glucose and xylose yields from co-hydrolysis compared with those from separate pretreatment and enzymatic hydrolysis (SPEH) for pretreatment of 2% w/w Populus slurries in water alone at 180°C followed by enzymatic hydrolysis over a range of enzyme loadings according to the same format as in Figure 2. The error bars represent the standard errors, based on three replicates.