954632.fig.005
Figure 5: Time courses of xylose concentration in second step EFB hydrolysis at different acid concentrations. □: 2% (w/v) H2SO4 and 0.8% (w/v) H3PO4; ▲: 2.5% (w/v) H2SO4 and 1% (w/v) H3PO4; ○: 3% (w/v) H2SO4 and 1.2% (w/v) H3PO4. Other conditions: liquid to solid ratio 3 mL/g, 130°C.