Fig. 3

Effects of ⋅OH generated by the Fenton reaction pretreatment on the enzymatic saccharification of corn stover. Effect of Fe.²⁺ concentration in the presence of 1 M H₂O₂ (A), H₂O₂ concentration in the presence of 20 mM FeSO₄ (B), and pretreatment time on reducing sugars production in the presence of 20 mM FeSO₄ and 1 M H₂O₂ (C)