Fig. 1

The amount of glucose liberated from pulp by the enzymatic treatment with the enzyme dose 3.2 FPU/g: a larch pulp and b acacia pulp. open diamond: filter paper, open circle: soda–AQ pulp with the kappa number 56.6, open square: kraft pulp with the kappa number 22.8, and solid circle, solid square: SP with the kappa number 64.3 and 23.0, respectively. Enzymatic treatment: pulp 50 mg, acetate buffer pH 4.5 and 1.5 mL and temperature at 45 °C