Medicinal Plant

2012, v.3(02) 38-40

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Effect of Different Extraction Methods on the Chemical Constituents of Essential Oils from FOLIUM ARTEMISIAE ARGYI
Effect of Different Extraction Methods on the Chemical Constituents of Essential Oils from FOLIUM ARTEMISIAE ARGYI

摘要(Abstract):

[Objective] To study the effect of different extraction methods on the chemical constituents of essential oils from FOLIUM ARTEMISIAE ARGYI.[Method] The essential oils were first extracted from FOLIUM ARTEMISIAE ARGYI by steam distillation and SFE-CO2,and then qualitatively identified by GC-MS.Next,the relative content of each component was calculated by normalization method.[Result] There were significant differences in the chemical constituents of essential oils that were extracted from FOLIUM ARTEMISIAE ARGYI by different methods like steam distillation and SFE-CO2.The essential oils extracted by SFE-CO2 mainly contained 1,2-benzenedicarboxylic acid-2-ethylhexyl mono ester(17.81%) and 1,2,3,4,4a,5,6,8a-octahydro-7-methyl-4-methylene-1-(1-methylethyl)-(1a.alpha.,4a.alpha.,8a.alpha.)-naphthalene(11.13%),while that extracted by steam distillation mainly contained 4,6,6-trimethyl-[1S-(1a,2β,5a)]-bicyclo [3.1.1] hept-3-en-2-ol(22.05%),4-methyl-1-(1-methylethyl)-[1S-(1α,4β,5α)]-bicyclo [3.1.0] hexan-3-one(10.69%) and caryophyllene oxide(10.62%).[Conclusion] The essential oils extracted from FOLIUM ARTEMISIAE ARGYI by SFE-CO2 contained more chemical constituents,especially low-polarity substance.However,the chemical constituents of essential oils extracted by steam distillation focused on higher-polarity alcohols.It was difficult to extract low-polarity volatile components by steam distillation.

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基金项目(Foundation): Supported by the Initial Foundation for Scientific Research of Guangdong Industry Technical College (KXKY200904)

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