Chemical composition of volatile oils from algerian nigella sativa L. seeds / Farid Benkaci-Ali in The journal of essential oil research, Vol. 22 N° 4 (Juillet/Août 2010)  

Chemical composition of volatile oils from algerian nigella sativa L. seeds [texte imprimé] / Farid Benkaci-Ali, Auteur ; Aoumeur Baaliouamer ; Jean Paul Wathelet, Auteur . - 2011 . - pp. 318-322.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 22 N° 4 (Juillet/Août 2010) . - pp. 318-322

Mots-clés :	Nigella sativa Ranunculaceae p-Cymene Thymoquinone Thymohydroquinone GC GC/MS
Index. décimale :	646
Résumé :	The chemical composition of the volatiles obtained from the fixed oils of Nigella sativa L. seeds growing in Algeria was investigated by GC and GC/MS analysis. Two solvents were studied for extracting the oils, hexane and isopropanol. The composition of N. sativa seeds varieties having four location origins in Algeria, were determined. Alcohols and ketones formed the main proportion using the two solvents, respectively (hexane: 27.4–36.1%, isopropanol: 40.2–59.0%) and (hexane: 39.9–44.3%, isopropanol: 17.5–50.7%), among which thymoquinone and thymohydroqui-none were the predominant antioxidant compounds. The monoterpene hydrocarbons constitute relatively the lower fraction compared to the precedent chemical families, particularly by using the isopropanol solvent.
DEWEY :	665
ISSN :	1041-2905
En ligne :	http://www.tandfonline.com/doi/abs/10.1080/10412905.2010.9700335