Fig. 3From: Amperometric method for the determination of cellulase activity and its optimization using response surface methodThe normalized biosensor output signal change (ΔI) at different cellulase activity. The cellulose samples were incubated in air-saturated 1% CMC solution in 0.1 M acetate buffer (pH 5.0) at 25 °C; the final concentration of glucose oxidase added was 12 U/ml; measurement time at constant stirring was 600 sBack to article page