2009 Volume 56 Issue 12 Pages 639-646
In this study, we examined the effects of lyophilized powder of foam components (foam powder) obtained from the bulb of jumbo leek on liver disorders. Using a rat model, acute liver disorders were produced by D-galactosamine hydrochloride (GalN) administration to induce fulminant hepatitis and chronic liver disorders were induced by ethanol administration. These effects were then compared with those of freeze-dried powder of the whole bulb and curcumin. We also attempted to isolate and identify the saponin, the estimated active component in the leek. Both foam powder and freeze-dried powder decreased the induction of hepatocyte necrosis in GalN-induced acute liver disorders and prevented the occurrence of ethanol-induced chronic liver disorders in rats by inhibiting the absorption of alcohol from the stomach. From the freeze-dried whole-bulb powder, we isolated the known steroid saponin, karatavioside A (C50H80O23, MW : 1048).