Fig. 4From: Isolated compounds from Dracaena angustifolia Roxb and acarbose synergistically/additively inhibit α-glucosidase and α-amylase: an in vitro studyInhibition rates of the combination of acarbose and Compounds 6 (A), 8 (B), 9 (C), 22 (D), and 24 (E) against α-glucosidase in vitro at gradient concentrations. The CI values above the data points were calculated by CompuSyn softwareBack to article page