Chemical differences in the essential oil of pimenta pseudocaryophyllus (Gomes) L. R. landrum leaves from Brazil / J. A.M. De Paula in The journal of essential oil research, Vol. 22 N° 6 (Novembre/Décembre 2010)  

Public ISBD [article]  inThe journal of essential oil research > Vol. 22 N° 6 (Novembre/Décembre 2010) . - pp. 555-557 Titre : Chemical differences in the essential oil of pimenta pseudocaryophyllus (Gomes) L. R. landrum leaves from Brazil Type de document : texte imprimé Auteurs : J. A.M. De Paula, Auteur ; J. R. De Paula, Auteur ; M. T. Freitas Bara, Auteur Année de publication : 2011 Article en page(s) : pp. 555-557 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Pimenta pseudocaryophyllus Myrtaceae Essential oil composition Methyl eugenol (E)-methyl isoeugenol Neral Geranial Caryophyllene oxide Seasonal variation Index. décimale : 646 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 [article] Chemical differences in the essential oil of pimenta pseudocaryophyllus (Gomes) L. R. landrum leaves from Brazil [texte imprimé] / J. A.M. De Paula, Auteur ; J. R. De Paula, Auteur ; M. T. Freitas Bara, Auteur . - 2011 . - pp. 555-557. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 22 N° 6 (Novembre/Décembre 2010) . - pp. 555-557 Mots-clés : Pimenta pseudocaryophyllus Myrtaceae Essential oil composition Methyl eugenol (E)-methyl isoeugenol Neral Geranial Caryophyllene oxide Seasonal variation Index. décimale : 646 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

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