Screening of 𝛼-Glucosidase Inhibitory Activity from Some Plants of Apocynaceae, Clusiaceae, Euphorbiaceae, and Rubiaceae

Figure 1

Lineweaver-Burk plot of 80% ethanol extract of leaves of Antidesma celebicum with concentration of 2.08 μg/mL with pNPG substrate concentration of 1.25, 2.5, 5, 10, and 20 mM.