Constituents and antibacterial activity of the essential oils from the leaves and fruits of pittosporum viridulum / John J. Anil in The journal of essential oil research, Vol. 19 N°6 (Novembre/Decembre 2007)  

Public ISBD [article]  inThe journal of essential oil research > Vol. 19 N°6 (Novembre/Decembre 2007) . - pp. 591-593 Titre : Constituents and antibacterial activity of the essential oils from the leaves and fruits of pittosporum viridulum Type de document : texte imprimé Auteurs : John J. Anil, Auteur ; Vrujesh P. Karunakaran, Auteur ; Varughese George, Auteur Année de publication : 2008 Article en page(s) : pp. 591-593 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Pittosporum viridulum Pittosporaceae Essential oil composition Spathulenol Caryophyllene oxide α  -cadinol Germacrene D δ  -cadinene Antibacterial activity Résumé : The essential oils obtained by hydrodistillation of the fresh leaves and mature fruits of Pittosporum viridulum were analyzed by GC and GC/MS. Fifteen components comprising 85.4% of the leaf oil and twenty-six components comprising 94.5% of the fruit oil have been identified. The major components of the leaf oil were spathulenol (28.4%), caryophyllene oxide (17.6%), and α-cadinol (9.0%), whereas germacrene D (28.6%), α-cadinol (13.0%) and δ-cadinene (9.4%) were the major components in the fruit oil. The oils showed moderate antibacterial activity against the Gram-positive bacteria Staphylococcus aureus and Salmonella typhi. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699338#.UXJvckqC5mM [article] Constituents and antibacterial activity of the essential oils from the leaves and fruits of pittosporum viridulum [texte imprimé] / John J. Anil, Auteur ; Vrujesh P. Karunakaran, Auteur ; Varughese George, Auteur . - 2008 . - pp. 591-593. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 19 N°6 (Novembre/Decembre 2007) . - pp. 591-593 Mots-clés : Pittosporum viridulum Pittosporaceae Essential oil composition Spathulenol Caryophyllene oxide α  -cadinol Germacrene D δ  -cadinene Antibacterial activity Résumé : The essential oils obtained by hydrodistillation of the fresh leaves and mature fruits of Pittosporum viridulum were analyzed by GC and GC/MS. Fifteen components comprising 85.4% of the leaf oil and twenty-six components comprising 94.5% of the fruit oil have been identified. The major components of the leaf oil were spathulenol (28.4%), caryophyllene oxide (17.6%), and α-cadinol (9.0%), whereas germacrene D (28.6%), α-cadinol (13.0%) and δ-cadinene (9.4%) were the major components in the fruit oil. The oils showed moderate antibacterial activity against the Gram-positive bacteria Staphylococcus aureus and Salmonella typhi. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699338#.UXJvckqC5mM

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Volatile constituents and antibacterial activity of leaf oil of thottea ponmudiana sivar. / John J. Anil in The journal of essential oil research, Vol. 20 N°5 (Septembre/Octobre 2008)  

Public ISBD [article]  inThe journal of essential oil research > Vol. 20 N°5 (Septembre/Octobre 2008) . - pp. 460-463 Titre : Volatile constituents and antibacterial activity of leaf oil of thottea ponmudiana sivar. Type de document : texte imprimé Auteurs : John J. Anil, Auteur ; Jose J. Oswin, Auteur ; George Varughese, Auteur Année de publication : 2008 Article en page(s) : pp. 460-463 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Thottea ponmudiana Aristolochiaceae Essential oil Chemical composition Antibacterial activity Pregeijerene B 8α  -acetoxyelemol Terpinolene Résumé : The essential oil obtained by hydrodistillation of the fresh leaves of Thottea ponmudiana was analyzed by gas chromatography and gas chromatography-mass spectrometry. Twenty-seven components comprising 87.4% of the leaf oil were identified. Among the identified constituents 14.8% were monoterpene hydrocarbons, 32.6% were sesquiterpene hydrocarbons and 40.0% oxygenated sesquiterpenes. The major component, pregeijerene B (E,E,E-1,7-dimethylcylododeca-1,4,7-triene) (25.8%) was isolated and identified by IR, GC/EIMS and 1H-NMR analyses. The other major components in the leaf oil were 8α-acetoxyelemol (21.6%) followed by terpinolene (10.1%), elemol (8.2%) and bulnesol (4.9%). The antibacterial activity of the oil was tested against both Gram-positive and Gram-negative bacteria. The oil showed significant activity against the Gram-positive bacteria Staphylococcus aureus and Bacillus subtilis, in comparison with the standard, streptomycin. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9700059 [article] Volatile constituents and antibacterial activity of leaf oil of thottea ponmudiana sivar. [texte imprimé] / John J. Anil, Auteur ; Jose J. Oswin, Auteur ; George Varughese, Auteur . - 2008 . - pp. 460-463. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 20 N°5 (Septembre/Octobre 2008) . - pp. 460-463 Mots-clés : Thottea ponmudiana Aristolochiaceae Essential oil Chemical composition Antibacterial activity Pregeijerene B 8α  -acetoxyelemol Terpinolene Résumé : The essential oil obtained by hydrodistillation of the fresh leaves of Thottea ponmudiana was analyzed by gas chromatography and gas chromatography-mass spectrometry. Twenty-seven components comprising 87.4% of the leaf oil were identified. Among the identified constituents 14.8% were monoterpene hydrocarbons, 32.6% were sesquiterpene hydrocarbons and 40.0% oxygenated sesquiterpenes. The major component, pregeijerene B (E,E,E-1,7-dimethylcylododeca-1,4,7-triene) (25.8%) was isolated and identified by IR, GC/EIMS and 1H-NMR analyses. The other major components in the leaf oil were 8α-acetoxyelemol (21.6%) followed by terpinolene (10.1%), elemol (8.2%) and bulnesol (4.9%). The antibacterial activity of the oil was tested against both Gram-positive and Gram-negative bacteria. The oil showed significant activity against the Gram-positive bacteria Staphylococcus aureus and Bacillus subtilis, in comparison with the standard, streptomycin. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9700059

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