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Volatile oils from the root, stem and leaves of schefflera stellata (Gaertn.) harms (Araliaceae) / Baby Sabulal 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. 79-82 Titre : Volatile oils from the root, stem and leaves of schefflera stellata (Gaertn.) harms (Araliaceae) : Chemical characterization and antimicrobial activity Type de document : texte imprimé Auteurs : Baby Sabulal, Auteur ; Varughese George, Auteur ; Nediyaparambu Sukumaran Pradeep, Auteur Année de publication : 2008 Article en page(s) : pp. 79-82 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Schefflera  stellata  Araliaceae  Essential  oil  composition  β-caryophyllene  α-humulene  Germacrene  D  Germacrene  B  Epi-α-cadinol  Antimicrobial  activity Résumé : Volatile oils from the roots, stem and leaves of Schefflera stellata (Gaertn.) Harms were isolated by hydrodistillation and characterized by analytical gas chromatography and gas chromatography-mass spectroscopy. Sixty-nine (98.3%), seventy-eight (97.9%) and sixty-seven (98.0%) constituents were identified from the root, stem and leaf oils, respectively. Sesquiterpene hydrocarbons were the most abundant compounds in the root (73.8%), stem (68.8%) and leaf (63.4%) oils, followed by oxygenated sesquiterpenes, monoterpene hydrocarbons and oxygenated monoterpenes. β-Caryophyllene (11.1–19.2%), α-humulene (7.3–15.4%), germacrene D (3.3–14.4%), germacrene B (8.3–21.7%) and epi-α-cadinol (5.6–15.0%) were the major constituents in these oils. Antimicrobial activity of the leaf oil was tested by the disc diffusion technique. The leaf oil showed good antifungal activity against Candida albicans and C. glabrata, but the antibacterial activity of the leaf oil was very low. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9699428 [article] Volatile oils from the root, stem and leaves of schefflera stellata (Gaertn.) harms (Araliaceae) : Chemical characterization and antimicrobial activity [texte imprimé] / Baby Sabulal, Auteur ; Varughese George, Auteur ; Nediyaparambu Sukumaran Pradeep, Auteur . - 2008 . - pp. 79-82. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 20 N°1 (Janvier/Fevrier 2008) . - pp. 79-82 Mots-clés : Schefflera  stellata  Araliaceae  Essential  oil  composition  β-caryophyllene  α-humulene  Germacrene  D  Germacrene  B  Epi-α-cadinol  Antimicrobial  activity Résumé : Volatile oils from the roots, stem and leaves of Schefflera stellata (Gaertn.) Harms were isolated by hydrodistillation and characterized by analytical gas chromatography and gas chromatography-mass spectroscopy. Sixty-nine (98.3%), seventy-eight (97.9%) and sixty-seven (98.0%) constituents were identified from the root, stem and leaf oils, respectively. Sesquiterpene hydrocarbons were the most abundant compounds in the root (73.8%), stem (68.8%) and leaf (63.4%) oils, followed by oxygenated sesquiterpenes, monoterpene hydrocarbons and oxygenated monoterpenes. β-Caryophyllene (11.1–19.2%), α-humulene (7.3–15.4%), germacrene D (3.3–14.4%), germacrene B (8.3–21.7%) and epi-α-cadinol (5.6–15.0%) were the major constituents in these oils. Antimicrobial activity of the leaf oil was tested by the disc diffusion technique. The leaf oil showed good antifungal activity against Candida albicans and C. glabrata, but the antibacterial activity of the leaf oil was very low. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9699428