Alpha-glucosidase inhibitory activity of a 70% methanol extract from ezoishige (Pelvetia babingtonii de Toni) and its effect on the elevation of blood glucose level in rats.

The 70% methanol extract from ezoishige (Pelvetia babingtonii de Toni) inhibited the rat-intestinal alpha-glucosidase, sucrase and maltase activities, with IC50 values of 2.24 and 2.84 mg/ml.