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KMID : 1138520080110010177
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Journal of Pharmacopuncture
2008 Volume.11 No. 1 p.177 ~ p.187
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The Study on the Composition of Yongdamsagan-tang(龍膽瀉肝湯)’s Essential Oil Obtained by Supercritical Carbon Dioxide Extraction
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Sin Min-Seop
Yook Tae-Han
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Abstract
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Objectives : This study was performed to analyze the effective components of essential oil obtained from Yongdamsagantang, which has been efficacious against leukorrhea in gynecologic diseases.
Methods : I obtained the essential oils of Yongdamsagan-tang by hydrodistillation extraction method and supercritical fluid extraction(SFE) method, and then I analyzed those by GC/MS(Gas Chromatography/Mass Spectrum).
Results : 1. The optimum SFE(Supercritical Fluid Extraction) condition was obtained in the following experiment
conditions: pressure 200atm, temperature , duration of extraction 25minutes. 2. With GC(Gas Chromatography) and GC/MS(Gas Chromato- graphy/Mass Spectrum) analysis, I identified 37 compounds in the Yongdamsagan-tang’s essential oil obtained through the SFE method. The main compounds were as follows : 3-Methyl-but-2-enoic acid,2,2-dimethyl-8-oxo-3,4-dihydro-2H,8H -pyrano[3,2-g]chromen-3-yl ester(49.81%), (Z)-6-Pentadecen-1 -ol(3.19%), (-)-Spathulenol(2.40%). 3. I identified 4 compounds in the Yongdamsagan-tang’s essential oil obtained through the hydrodistillation method. The main compounds were as follows : 3-Methyl-but-2-enoic acid, 2,2-dimethyl-8-oxo-3,4-dihydro-2H,8H-pyrano [3,2-g]chromen-3-yl ester(2.61%). 4. 3-Methy I-but-2-enoic acid, 2,2-dimethyl-8-oxo-3,4-dihydro-2H,8H-pyrano[3,2-g] chromen-3-yl ester, all were identified in both the SFE method and the hydrodistillation method, but the others were not identified in common. 5. I also conducted an additional test in order to examine the essential oil’s antimicrobial action against bacteria. Both MIC(Minimum Inhibitory Concentrations) and MBC(Minimum Bactericidal Concentrations) were against N. meningitidis, however MIC and MBC were in antimicrobial action against 12 different genera of bacteria.
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KEYWORD
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Supercritical fluid extraction, Yongdamsagan-tang(龍膽瀉肝湯), Herbal acupuncture, Hydrodistillation, Antimicrobial action
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