Objective To study the inhibitory effect of ginkgo biloba extract(GBE) on alpha-glucosidase by pharmacodynamic experiments in vitro,discuss the hypoglycemic mechanism,and provide experimental evidence for exploration and utilization of GBE.Methods The alpha-glucosidase was extracted from the small intestine of rats.The activity of α-glucosidase was determined by glucose kit.The inhibitory experiment in vitro was divided into normal control,positive control,and different doses of GBE(10.0,5.0,2.5 g·L-1) grou...