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Chemical Composition Analysis of Essential Oil from Ligusticum chuanxiong Hort. Leaves in Yunnan

Junming Guo

Abstract

Essential oil was extracted by steam distillation from Ligusticum chuanxiong Hort leaves and analyzed by gas chromatography-mass spectroscopy(GC-MS).Totally 84 and 51 compounds were identified in essential oils from Ligusticum chuanxiong Hort leaves harvested in spring and summer,with a relative content of respectively 97.8% and 98.2%.No significant difference in chemical composition was observed between essential oils from the leaves harvested at both seasons.The major components were 3,4-dimethylenecyclopent-anone,5,7,8-trimethyl-2-chromanone,caryophyllene,trans-ocimene,cis-ocimene,(+)-sabinene and α-pinene.

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Key concepts: Sabinene, Essential oil, Steam distillation, Chemical composition, Chemistry, Composition (language), Gas chromatography–mass spectrometry, Gas chromatography