Fig. 3

Anti-diabetic effect (α-glucosidase inhibition activity) of OSM. Data are presented as means ± standard errors (n = 3). Bars labeled with different superscripts have significantly different values at 5% using Duncan’s Multiple Range Tests (p < 0.05) a–c, the different letters indicated significant differences among the groups by a Tukey test in each time point at P < 0.05