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Analysis of the essential oil from leaves of three different specimens of guarea guidonia (L.) sleumer (Meliaceae) / João Henrique G. Lago in The journal of essential oil research, Vol. 17 N° 3 (Mai-Juin 2005) 

Public ISBD [article]  in The journal of essential oil research > Vol. 17 N° 3 (Mai-Juin 2005) . - pp. 271-273 Titre : Analysis of the essential oil from leaves of three different specimens of guarea guidonia (L.) sleumer (Meliaceae) Type de document : texte imprimé Auteurs : João Henrique G. Lago, Auteur ; Cláudia B. Brochini, Auteur ; Nídia F. Roque, Auteur Année de publication : 2006 Article en page(s) : pp. 271-273 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Guarea  guidonia  Meliaceae  Essential  oil  composition  Chemical  variation  Eudesma-5,7-diene  β-caryophyllene  Eudesm-6-en-4β-ol  Eudesma-5,7-dien-2a-ol  Guai-6-en-10β-ol Résumé : The essential oils from leaves of three different specimens of Guarea guidonia were obtained by hydrodistillation. These crude oils were subjected to FID-GC and GC/MS analysis as well as to adsorption chromatographic separations. Several sesquiterpenes were identified including hydrocarbon and oxygenated derivatives. The data indicated a significant difference in the chemical composition of the oils obtained from the leaves of different specimens. Furthermore, this analysis corroborated the hypothesis that Guarea species do not produce monoterpenes. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9698899#.UeKSVmF2_n4 [article] Analysis of the essential oil from leaves of three different specimens of guarea guidonia (L.) sleumer (Meliaceae) [texte imprimé] / João Henrique G. Lago, Auteur ; Cláudia B. Brochini, Auteur ; Nídia F. Roque, Auteur . - 2006 . - pp. 271-273. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 17 N° 3 (Mai-Juin 2005) . - pp. 271-273 Mots-clés : Guarea  guidonia  Meliaceae  Essential  oil  composition  Chemical  variation  Eudesma-5,7-diene  β-caryophyllene  Eudesm-6-en-4β-ol  Eudesma-5,7-dien-2a-ol  Guai-6-en-10β-ol Résumé : The essential oils from leaves of three different specimens of Guarea guidonia were obtained by hydrodistillation. These crude oils were subjected to FID-GC and GC/MS analysis as well as to adsorption chromatographic separations. Several sesquiterpenes were identified including hydrocarbon and oxygenated derivatives. The data indicated a significant difference in the chemical composition of the oils obtained from the leaves of different specimens. Furthermore, this analysis corroborated the hypothesis that Guarea species do not produce monoterpenes. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9698899#.UeKSVmF2_n4

Variation on the chemical composition of the oil from damaged branches of guarea guidonia (L.) sleumer (Meliaceae) / Cecília V. Nuñez in The journal of essential oil research, Vol. 17 N° 6 (Novembre-Décembre 2005) 

Public ISBD [article]  in The journal of essential oil research > Vol. 17 N° 6 (Novembre-Décembre 2005) . - pp. 626-627 Titre : Variation on the chemical composition of the oil from damaged branches of guarea guidonia (L.) sleumer (Meliaceae) Type de document : texte imprimé Auteurs : Cecília V. Nuñez, Auteur ; João Henrique G. Lago, Auteur ; Nídia F. Roque, Auteur Année de publication : 2006 Article en page(s) : pp. 626-627 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Guarea  guidonia  Meliaceae  Essential  oil  composition  Germacrene  D Résumé : The damaged branches of one specimen of Guarea guidonia, which had been blown down after a high wind, were submitted to steam distillation. The oil was analyzed by GC and GC/MS. The chromatographic profile indicated a difference in the composition of this oil in comparison to an oil obtained from healthy-branch oil analyzed previously The crude oil was thus submitted to chromatographic separation, and the main components identified by NMR and GC/MS. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9699015#.UbnGS9h-Tp9 [article] Variation on the chemical composition of the oil from damaged branches of guarea guidonia (L.) sleumer (Meliaceae) [texte imprimé] / Cecília V. Nuñez, Auteur ; João Henrique G. Lago, Auteur ; Nídia F. Roque, Auteur . - 2006 . - pp. 626-627. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 17 N° 6 (Novembre-Décembre 2005) . - pp. 626-627 Mots-clés : Guarea  guidonia  Meliaceae  Essential  oil  composition  Germacrene  D Résumé : The damaged branches of one specimen of Guarea guidonia, which had been blown down after a high wind, were submitted to steam distillation. The oil was analyzed by GC and GC/MS. The chromatographic profile indicated a difference in the composition of this oil in comparison to an oil obtained from healthy-branch oil analyzed previously The crude oil was thus submitted to chromatographic separation, and the main components identified by NMR and GC/MS. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2005.9699015#.UbnGS9h-Tp9