Fig. 6

Effects of pH and temperature on the activity and stability of the recombinant DBR1. a, temperature; b, pH; c, thermo stability of the enzyme DBR1; d pH stability of the enzyme DBR1 (the residual activity was monitored, while the enzyme was incubated at 40, 45, and 50 °C; the initial activity was defined as 100%; all these activities were expressed as relative values; data represent the mean values of three replicates, and error bars represent the standard deviation)