Table 3.

In vitro α-amylase inhibitory effect of aqueous flower extract from N. arbor-tristis

Concentration mg/kg	α-amylase inhibitory activity (%)
250 mg/kg	8.33
500 mg/kg	16.67*
750 mg/kg	33.33**

Values are statistically significant at *p < 0.05, ^** p<0.01. Control group was treated with distilled water while test groups were treated with 250, 500 & 750 mg/kg of the extract. To measure diaphragm glucose uptake, and glycogen content in liver and skeletal muscles, mice were treated for 30 days. For measurement of intestinal glucose absorption, mice were treated with acute doses. The data was analyzed by parametric method-ANOVA