"Until recently, family Ranunculaceae was generally considered as a taxon not containing essential oils [1]. However, during last years several works describing essential oils in seeds of four species of genus Nigella have appeared in literature [2,3,4,5]. Moreover, the most recent papers describe presence of volatile oils also in genera Aquilegia [6] and Delphinium [7]. Therefore, we have carried out analysis of Nigella nigellastrum Willk. seeds essential oil by GC and GC-MS with aim to contribute to understanding the chemotaxonomical distribution of terpenoid compounds within the family Ranunculaceae. The oil was isolated from the seeds of the plants grown in the Czech Republic. The distillation yielded 0.028% w/w of essential oil of pale yellow color. In total, 23 components were identified, accounting for 92.7% of total oil content. Monoterpene hydrocarbons, mainly α-pinene (43.0%), and β-pinene (45.78%) were the main constituents accounting together for almost 89% of the essential oil." . "Koko\u0161ka, Ladislav" . . "Klou\u010Dek, Pavel" . . "39th International Symposium on Essential Oils ISEO 2008" . . . "978-3-936028-53-9" . "Jiro\u0161, Pavel" . "Until recently, family Ranunculaceae was generally considered as a taxon not containing essential oils [1]. However, during last years several works describing essential oils in seeds of four species of genus Nigella have appeared in literature [2,3,4,5]. Moreover, the most recent papers describe presence of volatile oils also in genera Aquilegia [6] and Delphinium [7]. Therefore, we have carried out analysis of Nigella nigellastrum Willk. seeds essential oil by GC and GC-MS with aim to contribute to understanding the chemotaxonomical distribution of terpenoid compounds within the family Ranunculaceae. The oil was isolated from the seeds of the plants grown in the Czech Republic. The distillation yielded 0.028% w/w of essential oil of pale yellow color. In total, 23 components were identified, accounting for 92.7% of total oil content. Monoterpene hydrocarbons, mainly α-pinene (43.0%), and β-pinene (45.78%) were the main constituents accounting together for almost 89% of the essential oil."@cs . . . "Chemical composition of Nigella nigellastrum essential oil and its chemotaxonomical aspect"@en . "Chemical composition of Nigella nigellastrum essential oil and its chemotaxonomical aspect" . . "41610" . "2008-09-07+02:00"^^ . "Chemical composition of Nigella nigellastrum essential oil and its chemotaxonomical aspect"@en . . "Quedlinburg, N\u011Bmecko" . . "RIV/60460709:41610/08:25361" . . . "6"^^ . "German Chemical Society" . . . "Havl\u00EDk, Jaroslav" . "Quedlinburg" . "Chemick\u00E9 slo\u017Een\u00ED silice Nigella nigellastrum a jej\u00ED chemotaxonomick\u00FD aspekt"@cs . . "359713" . . . "Until recently, family Ranunculaceae was generally considered as a taxon not containing essential oils [1]. However, during last years several works describing essential oils in seeds of four species of genus Nigella have appeared in literature [2,3,4,5]. Moreover, the most recent papers describe presence of volatile oils also in genera Aquilegia [6] and Delphinium [7]. Therefore, we have carried out analysis of Nigella nigellastrum Willk. seeds essential oil by GC and GC-MS with aim to contribute to understanding the chemotaxonomical distribution of terpenoid compounds within the family Ranunculaceae. The oil was isolated from the seeds of the plants grown in the Czech Republic. The distillation yielded 0.028% w/w of essential oil of pale yellow color. In total, 23 components were identified, accounting for 92.7% of total oil content. Monoterpene hydrocarbons, mainly α-pinene (43.0%), and β-pinene (45.78%) were the main constituents accounting together for almost 89% of the essential oil."@en . "1"^^ . "Chemical composition of Nigella nigellastrum essential oil and its chemotaxonomical aspect" . "[FF37334D1045]" . "4"^^ . . . . "Neuvedeno, 0" . "P(GA525/08/1179), Z(MSM6046070901)" . "Nigella, GC-MS, pinene,"@en . "Mal\u00EDk, Jan" . . . "Valterov\u00E1, Irena" . "Chemick\u00E9 slo\u017Een\u00ED silice Nigella nigellastrum a jej\u00ED chemotaxonomick\u00FD aspekt"@cs . "RIV/60460709:41610/08:25361!RIV09-GA0-41610___" .