| Titre : | Chemical composition and variation of the essential oil of wild sardinian helichrysum italicum G. don subsp. microphyllum (Willd.) nym from vegetative period to post-blooming (2011) |
| Auteurs : | M. Usai, Auteur ; M. Foddai, Auteur ; A. F. Bernardini, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | The journal of essential oil research (Vol. 22 N° 5, Septembre/Octobre 2010) |
| Article en page(s) : | pp. 373-380 |
| Note générale : | Génie Chimique |
| Langues : | Anglais |
| Index. décimale : | 646 |
| Tags : | Helichrysum italicum ssp. microphyllum Asteraceae Essential oil composition Neryl acetate Nerol Eudesm-5-en-11-ol Seasonal variation |
| Résumé : |
The essential oils obtained by water distillation from the aerial parts of Helichrysum italicum G. Don subsp. microphyllum (Willd.) Nym. were analyzed by gC and gC/MS. Three different populations growing at different elevations and under different weather conditions were studied from their vegetative period to post-blooming time. Forty-eight constituents accounting for between 96.5% and 83.0% of total oils have been identified and quantified. Among the identified constituents those present in the highest percentage were neryl acetate (17.6–35.6%), nerol (3.7–14.4%) and eudesmen-5-en-11-ol (6.4–23.5%). Among them, the neryl acetal percentage decreased when 5-eudesmen-11-ol percentage increased, and limonene reached 7% relative composition.
The main fraction of the oil consisted of oxygenated compounds present in higher concentrations in June. |
| DEWEY : | 665 |
| ISSN : | 1041-2905 |
| En ligne : | http://www.tandfonline.com/doi/abs/10.1080/10412905.2010.9700350 |
