采用水蒸气蒸馏法提取了甘肃和新疆两地孜然籽精油,产率分别为2.38%和2.56%,用GC-MS联机对精油进行成分分析,前者检测出31个成分,鉴定了27个成分,主要成分2-蒈烯-10-醛,占总精油含量的40.239%,其次为枯茗醛（26.144%）和3-蒈烯-10-醛（16.882%）;后者检测出27个成分,鉴定23个成分,主要成分2-蒈烯-10-醛,占总精油含量的44.338%,其次为枯茗醛（30.244%）和3-蒈烯-10-醛（12.861%）。含量和成分比较结果表明,新疆精油优于甘肃精油。%Essencial oil was extracted by steam distillation from cumin seeds of Gansu and Xinjiang production areas,and the oil yields reached 2.38% and 2.56%. The components of essential oils were determined with GC-MS,31 components were detected,27 components were identified in Gansu oil,the major components were 2-Carene-10-aldehyde（occupied 40.239% of total essential oil content）,followed by cumin aldehyde （26.144%） and 3-Carene- 10-aldehyde （ 16.882% ）. Xinjiang oil was detected 27 components, identified 23 components, the major components were 2-Carene- 10-aldehyde （44.338%）, followed by cumin aldehyde （30.244%） and 3-Carene- 10-aldehyde （12.861%）. By comparison the content and components of cumin essential oil from two production areas,Xinjiang＇s essential oil showed better quality than Gansu＇s.
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