954632.fig.003
Figure 3: Time courses of xylose yield at different acid concentrations. □: 1.5% (w/v) H2SO4 and 0.6% (w/v) H3PO4; ●: 2% (w/v) H2SO4 and 0.8% (w/v) H3PO4; ∆: 2.5% (w/v) H2SO4 and 1% (w/v) H3PO4. Other conditions: liquid to solid ratio 3 mL/g, 130°C.