INS and type 2 diabetes mellitus: ∙The extract reduced postprandial glucose,∙Improved glucose (2.5 g/kg, BW) tolerance in rats.∙Significant improvement in GI motility∙Reduced disaccharidase enzyme activity in fasting rats.∙Potential hypoglycemic activity∙Significantly improved INS secretion from isolated rat islets.Generate postprandial anti-hyperglycemic activity in T2DM animal models via reducing or delaying carbohydrate digestion and absorption in the gut and improving INS secretion in response to the plasma glucose.