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Effect of sample preparation on the amounts of α-pinene and verbenone extracted from rosemary / Katie A. McCormick in The journal of essential oil research, Vol. 18 N° 5 (Septembre-Octobre 2006) 

Public ISBD [article]  in The journal of essential oil research > Vol. 18 N° 5 (Septembre-Octobre 2006) . - pp. 478-480 Titre : Effect of sample preparation on the amounts of α-pinene and verbenone extracted from rosemary Type de document : texte imprimé Auteurs : Katie A. McCormick, Auteur ; Jamie S. Olivarez, Auteur ; Roy A. Fisher, Auteur Année de publication : 2006 Article en page(s) : pp. 478-480 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Rosmarinus  officinalis  Lamiaceae  α-pinene  Verbenone  Supercritical  fluid  extraction  Accelerated  solvent  extraction  Steam  distillation Résumé : Volatile compounds were obtained from fresh leaves of rosemary by accelerated solvent extraction (ASE), super-critical fluid extraction (SFE) and steam distillation. It was found that the ratio of α-pinene to verbenone depended on the method of preparation of plant material, and that the yield of verbenone was largest from ground leaves, while the amount of α-pinene was greatest in whole leaves. The transformation of α-pinene to verbenone is thought to be the cause for the differences in the relative amounts of these two major components. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2006.9699146#.UXcBz0qC5mM [article] Effect of sample preparation on the amounts of α-pinene and verbenone extracted from rosemary [texte imprimé] / Katie A. McCormick, Auteur ; Jamie S. Olivarez, Auteur ; Roy A. Fisher, Auteur . - 2006 . - pp. 478-480. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 18 N° 5 (Septembre-Octobre 2006) . - pp. 478-480 Mots-clés : Rosmarinus  officinalis  Lamiaceae  α-pinene  Verbenone  Supercritical  fluid  extraction  Accelerated  solvent  extraction  Steam  distillation Résumé : Volatile compounds were obtained from fresh leaves of rosemary by accelerated solvent extraction (ASE), super-critical fluid extraction (SFE) and steam distillation. It was found that the ratio of α-pinene to verbenone depended on the method of preparation of plant material, and that the yield of verbenone was largest from ground leaves, while the amount of α-pinene was greatest in whole leaves. The transformation of α-pinene to verbenone is thought to be the cause for the differences in the relative amounts of these two major components. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2006.9699146#.UXcBz0qC5mM