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배기환,김봉희,명평근,변재화 충남대학교 약학대학 의약품개발연구소 1990 藥學論文集 Vol.6 No.-
The isolation and identification of an antibacterial component, from the leaves of Liriodendron tulipifera. K. Kotch against a cariogenic bacterium Streptococcus mutans OMZ 176, were carried out for developing of anticariogenic agents. The bioactive component was elucidated as β-liriodenolide, which was isolated newly from the leaves of L.tulipifera. The minimal inhibitory concentration (MIC) of β-liriodenolide was 100 ㎍/㎖ and the antibacterial activity was stronger than that of berberine. β-Liriodenolide inhibited β-lactamase activity, 50. 100 and 200 μM β-liriodenolide did β-lactamase activity as 0.7, 3.5 and 19.7%, respectively. The toxicity of β-liriodenolide was not found with the method of photohemolysis.
충치균에 대한 생리활성 생약성분의 분리 및 약효평가(1) 튜립나무잎의 항균성 성분과 안전성에 대하여
배기환(Ki Whan Bae),김봉희(Bong Hee Kim),명평근(Pyung Keun Myung),변재화(Jae Hwa Byun) 대한약학회 1990 약학회지 Vol.34 No.2
The isolation and identification of an antibacterial component, from the leaves of Liriodendron tulipifera. K. Kotch against a cariogenic bacterium Streptococcus mutans OMZ 176, were carried out for developing of anticariogenic agents. The bioactive component was elucidated as beta-liriodenolide, which was isolated newly from the leaves of L. tulipifera. The minimal inhibitory concentration (MIC) of beta-liriodenolide was 100mcg/ml and the antibacterial activity was stronger than that of berberine. beta-Liriodenolide inhibited beta-lactamase activity, 50, 100 and 200mcM beta-liriodenolide did beta-lactamase activity as 0.7, 3.5 and 19.7%, respectively. The toxicity of beta-liriodenolide was not found with the method of photohemolysis.