| Titre : | Chemical composition of the essential oils of achillea millefolium L. isolated by different distillation methods |
| Auteurs : | Carlo I. G. Tuberoso, Auteur ; Adam Kowalczyk, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | The journal of essential oil research (Vol. 21 N° 2+ supplément vol.20, Mars/Avril 2009+ supplément 2008) |
| Article en page(s) : | pp. 108-111 |
| Note générale : | Génie Chimique |
| Langues : | Anglais |
| Index. décimale : | 646 |
| Tags : | Achillea millefolium Asteraceae Distillation methods Essential oil composition 1,8-cineole sabinene γ ; -eudesmol |
| Résumé : |
The chemical composition of the essential oil from flowering tops of Achillea millefolium L. isolated by different distillation methods was studied.
Samples were hydrodistilled with Clevenger-type (HD), simultaneous microdistillation-extraction (SMDE), and microwave (MAHD) apparatus. The yields were 0.46% ± 0.03 for the HD and 0.48% ± 0.03 for the MAHD (v/w, volume/dry weight). The oils were analyzed by GC and GC/MS and a total of 58 components were detected. The major compounds in the oils were 1,8-cineole (10.4–17.2%), sabinene (11.6–14.6%), α-terpineol (4.4–5.2%), terpinen-4-ol (2.4–5.7%), and, among sesquiterpenes, γ-eudesmol (8.7–17.9%) and 6S,7Rbisabolone (4.4–14.9%). From a qualitative point of view, no relevant differences between the different methods of isolation were observed, while statistically significant differences on relative percentage were noticed. Oils obtained by HD showed a higher amount of monoterpenoid compounds (69.2%), while L-SMDE, H-SMDE and MAHD were richer in sesquiterpenes (47.9%, 42.7% and 47.6%, respectively). |
| DEWEY : | 665 |
| ISSN : | 1041-2905 |
| En ligne : | http://www.jeoronline.com/archive/detail/42#top |
