| Titre : | Chemical differences in the essential oil of pimenta pseudocaryophyllus (Gomes) L. R. landrum leaves from Brazil (2011) |
| Auteurs : | J. A.M. De Paula, Auteur ; J. R. De Paula, Auteur ; M. T. Freitas Bara, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | The journal of essential oil research (Vol. 22 N° 6, Novembre/Décembre 2010) |
| Article en page(s) : | pp. 555-557 |
| Note générale : | Génie Chimique |
| Langues : | Anglais |
| Index. décimale : | 646 |
| Tags : | Pimenta pseudocaryophyllus Myrtaceae Essential oil composition Methyl eugenol (E)-methyl isoeugenol Neral Geranial Caryophyllene oxide Seasonal variation |
| Résumé : | The essential oils from Pimenta pseudocaryophyllus leaves collected in two Brazilian geographic localities at different flowering stages were analyzed by GC and GC/MS. A high oil yield (0.8%) was obtained in post-anthesis and pre-anthesis periods of specimens from Brasília. The majority constituents found at the Brasília sampling site were methyl eugenol (18.1%, post-anthesis; 4.1%, anthesis; 3.1%, pre-anthesis) and (E)-methyl isoeugenol (78.0%; 93.5%; 93.6%), while samples from São Gonçalo do Abaeté revealed neral (21.4%, post-anthesis; 33.6%, pre-anthesis) and geranial (36.5% and 47.2% respectively) as principal constituents. The two specimens drastically differed in terms of the chemical composition of their essential oils. |
| DEWEY : | 665 |
| ISSN : | 1041-2905 |
| En ligne : | http://www.tandfonline.com/doi/abs/10.1080/10412905.2010.9700398 |
