Fig. 2

S. spinosum extracts inhibited the activity of α-amylase. The activity of α-amylase in the presence or absence of leaves (a), fruits b or roots c extracts was measured as described in Materials and Methods. Results are mean ± SEM of % inhibition of 5 independent experiments. *p < 0.05, **p < 0.005, ***p < 0.0005 compared to untreated cells by Student’s t-test