Fig. 5

The inhibition of α-glucosidase by compound 5u (A) Line weaver-Burk plot of reciprocal of rate of reaction (velocities) vs. reciprocal of substrate concentration in the absence of (■), and in the presence of 10.00 µM (○), 5.00 µM (●), and 2.50 µM (□) of compound 5u. (B) Secondary replot of the Line weaver-Burk plot between the slopes of each line on the Line weaver-Burk plot vs. different concentrations of compound 5u. (C) Dixon plot of the reciprocal of the rate of reaction (velocities) vs. different concentrations of compound 5u.