Fig. 4From: Penicillium citrinum UFV1 β-glucosidases: purification, characterization, and application for biomass saccharificationEffect of pH on PcβGlu1 and PcβGlu2 activities. Enzymes were incubated in different buffers from pH 3 to 10 at 40 °C. For stability tests, the enzymes were pre-incubated for 4 h and residual activity was measured at the optimum pH. Activities were measured with MUβGlu as a substrate. a PcβGlu1. b PcβGlu2Back to article page