• YAKHAK HOEJI
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• v.50 no.5
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• pp.308-312
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• 2006

Alpinia katsumadai is used in traditional oriental medicine as an antiemetic and for treatment of stomach disorders. This study was to investigate the effect of the 50% methanol extract of Alpinia katsumadai and Puerariae thunbergiana on ethanol metabolism in rat. The administration of 50% methanol extract of Alpinia katsumadai significantly decrease the ethanol concentration in rat. The AUC and Cmax of Alpinia katsumadai was 3.1 and 2.4 times less than the control group, respectively. It was more effective than Pueraria thunbergiana is known to as ethanol detoxicant. Furthermore, we tested on its ethanol metabolizing effect with the preparation containing this herb (Haeju pill) in beagle. The AUC of Haeju pill was about 1.9 times less than the control group. It was estimated that the extract of Alpinia katsumadai had feasibility as a ethanol detoxication agent.

• Journal of Life Science
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• v.23 no.11
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• pp.1381-1387
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• 2013

The leaves and roots of Ligularia stenocephala, which are widely used as a food in Korea, were investigated for their antioxidant activities and cytotoxicity in vitro, and their hepatoprotective effect, alcohol detoxicant efficacy, and memory-enhancing property were investigated in vivo. The unique odor of the leaves was analyzed by GC-MS. Lipid peroxidation, superoxide anion formation, and DPPH radicals were inhibited remarkably by the extracts of the leaves and roots. The leaves of this edible plant significantly protected the hepatotoxicity induced by carbon tetrachloride and further diminished the blood alcohol content in mice. While the roots of this plant exhibited adequate cytotoxicity against four human tumor cell lines, especially against melanoma, the leaves revealed relatively weak activity. Both the leaves and the roots exerted an excellent ameliorating property on scopolamine-induced memory impairment in the passive avoidance task using an animal model. The hexane fraction of the leaves was analyzed by GC-MS, suggesting that a series of terpenoids may be odorous compounds in this plant.