Fig. 3
Selection of H2O2 concentration (v/v on the solution) for the AHP pretreatment. The pretreatment was carried out for 12 h at a fixed condition (pH 11.5, 25 °C, 12.5% solid content, 150 rpm shaking speed). The percentages of yield and component content refer to the weights of AAO-pretreated substrates and AHP-pretreated substrates, respectively