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Chemical composition and antimicrobial activity of essential oils of eugenia chlorophylla (Myrtaceae) / Maria Elida A. Stefanello in The journal of essential oil research, Vol. 20 N°1 (Janvier/Fevrier 2008) 

Public ISBD [article]  in The journal of essential oil research > Vol. 20 N°1 (Janvier/Fevrier 2008) . - pp. 75-78 Titre : Chemical composition and antimicrobial activity of essential oils of eugenia chlorophylla (Myrtaceae) Type de document : texte imprimé Auteurs : Maria Elida A. Stefanello, Auteur ; Armando C. Cervi, Auteur ; Izabel Y. Ito, Auteur Année de publication : 2008 Article en page(s) : pp. 75-78 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Eugenia  chlorophylla  Myrtaceae  Essential  oil  composition  β-caryophyllene  Caryophyllene  oxide  Globulol  1-epi-cubenol  T-muurolol  α—cadinol  Antimicrobial  activity Résumé : The chemical composition of essential oils of stems, leaves (at vegetative and flowering stages) and flowers of Eugenia chlorophylla O. Berg., (Myrtaceae) obtained by hydrodistillation, were analyzed by capillary GC and GC/MS. Thirty-four components were identified, representing more than 80% of total oil. The major components were β-caryophyllene (flowers −12.8%), caryophyllene oxide (stems—17.2%), globulol (stems—16.5%; leaves—22.5% at vegetative stage and 18.9% at flowering stage), 1-epi-cubenol (stems −10.9%), epi—α—muurolol (stems—16.8%) and α—cadinol (stems—12.1%; flowers −10.1%). The oils were evaluated against 20 strains of bacteria (Gram-positive and Gram-negative) and yeasts. All oils showed mild to moderate antimicrobial activity associated mainly with Gram-positive bacteria and yeasts. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9699427 [article] Chemical composition and antimicrobial activity of essential oils of eugenia chlorophylla (Myrtaceae) [texte imprimé] / Maria Elida A. Stefanello, Auteur ; Armando C. Cervi, Auteur ; Izabel Y. Ito, Auteur . - 2008 . - pp. 75-78. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 20 N°1 (Janvier/Fevrier 2008) . - pp. 75-78 Mots-clés : Eugenia  chlorophylla  Myrtaceae  Essential  oil  composition  β-caryophyllene  Caryophyllene  oxide  Globulol  1-epi-cubenol  T-muurolol  α—cadinol  Antimicrobial  activity Résumé : The chemical composition of essential oils of stems, leaves (at vegetative and flowering stages) and flowers of Eugenia chlorophylla O. Berg., (Myrtaceae) obtained by hydrodistillation, were analyzed by capillary GC and GC/MS. Thirty-four components were identified, representing more than 80% of total oil. The major components were β-caryophyllene (flowers −12.8%), caryophyllene oxide (stems—17.2%), globulol (stems—16.5%; leaves—22.5% at vegetative stage and 18.9% at flowering stage), 1-epi-cubenol (stems −10.9%), epi—α—muurolol (stems—16.8%) and α—cadinol (stems—12.1%; flowers −10.1%). The oils were evaluated against 20 strains of bacteria (Gram-positive and Gram-negative) and yeasts. All oils showed mild to moderate antimicrobial activity associated mainly with Gram-positive bacteria and yeasts. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9699427

Chemical composition, seasonal variation and evaluation of antimicrobial activity of essential oils of talauma ovata A. St. Hil. (Magnoliaceae) / Maria Elida A. Stefanello in The journal of essential oil research, Vol. 20 n°6 (Novembre/Décembre 2008) 

Public ISBD [article]  in The journal of essential oil research > Vol. 20 n°6 (Novembre/Décembre 2008) . - pp. 565-569 Titre : Chemical composition, seasonal variation and evaluation of antimicrobial activity of essential oils of talauma ovata A. St. Hil. (Magnoliaceae) Type de document : texte imprimé Auteurs : Maria Elida A. Stefanello, Auteur ; Marcos J. Salvador, Auteur ; Izabel Y. Ito, Auteur Année de publication : 2009 Article en page(s) : pp. 565-569 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Talauma  ovata  Magnoliaceae  Essential  oil  composition  Linalool  Trans-β-guaiene  Germacrene  D  Germacrene  B  Spathulenol  Caryophyllene  oxide  Viridiflorol  α-eudesmol  Antimicrobial  activity Résumé : The essential oils isolated by hydrodistillation from trunk bark and leaves of Talauma ovata A. St. Hil. (Magnoliaceae), collected in four seasons, were analyzed by capillary GC and GC/MS. Altogether 52 components were identified. The oils were characterized by predominance of cyclic sesquiterpenes. The main components were linalool, trans-β-guaiene, germacrene D, germacrene B, spathulenol, caryophyllene oxide, viridiflorol and α-eudesmol. The content of individual components was variable during the year. All oils were screened against several strains of bacteria and yeasts, using the agar well-diffusion technique. The antimicrobial activity of oils showed strong dependence with the season. Significant activity was found for oils obtained in the spring and summer. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9700089 [article] Chemical composition, seasonal variation and evaluation of antimicrobial activity of essential oils of talauma ovata A. St. Hil. (Magnoliaceae) [texte imprimé] / Maria Elida A. Stefanello, Auteur ; Marcos J. Salvador, Auteur ; Izabel Y. Ito, Auteur . - 2009 . - pp. 565-569. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 20 n°6 (Novembre/Décembre 2008) . - pp. 565-569 Mots-clés : Talauma  ovata  Magnoliaceae  Essential  oil  composition  Linalool  Trans-β-guaiene  Germacrene  D  Germacrene  B  Spathulenol  Caryophyllene  oxide  Viridiflorol  α-eudesmol  Antimicrobial  activity Résumé : The essential oils isolated by hydrodistillation from trunk bark and leaves of Talauma ovata A. St. Hil. (Magnoliaceae), collected in four seasons, were analyzed by capillary GC and GC/MS. Altogether 52 components were identified. The oils were characterized by predominance of cyclic sesquiterpenes. The main components were linalool, trans-β-guaiene, germacrene D, germacrene B, spathulenol, caryophyllene oxide, viridiflorol and α-eudesmol. The content of individual components was variable during the year. All oils were screened against several strains of bacteria and yeasts, using the agar well-diffusion technique. The antimicrobial activity of oils showed strong dependence with the season. Significant activity was found for oils obtained in the spring and summer. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9700089