Documents disponibles écrits par cet auteur

Essential oil composition of centaurea pullata L. / Tahar Dob in The journal of essential oil research, Vol. 21 N° 5 (Septembre/Octobre 2009) 

Public ISBD [article]  in The journal of essential oil research > Vol. 21 N° 5 (Septembre/Octobre 2009) . - pp. 417-422 Titre : Essential oil composition of centaurea pullata L. Type de document : texte imprimé Auteurs : Tahar Dob, Auteur ; Dahmane Dahmane, Auteur ; Bénédicte Gauriat-Desrdy, Auteur Article en page(s) : pp. 417-422 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Centaurea  pullata  Asteraceae  Essential  oil  composition  Caryophyllene  oxide  Phytol  6,10,14-trimethyl  2-pentadecanone Index. décimale : 646 Résumé : The essential oil composition of Centaurea pullata L. was obtained by water distillation, yielding 0.03% of oil on dry weight basis. The oil composition was analyzed by a combination of GC and GC/MS techniques. Sixty components, representing 83.1% of the total oil, were identified, six of which have not been previously reported in Centaurea oils. The principal constituents were identified as caryophyllene oxide (27.0%), phytol isomer (16.5%) and 6,10,14-trimethyl 2-pentadecanone (14.9%). These results show remarkable qualitative and quantitative differences with previously reported studies for Centaurea species. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top [article] Essential oil composition of centaurea pullata L. [texte imprimé] / Tahar Dob, Auteur ; Dahmane Dahmane, Auteur ; Bénédicte Gauriat-Desrdy, Auteur . - pp. 417-422. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 21 N° 5 (Septembre/Octobre 2009) . - pp. 417-422 Mots-clés : Centaurea  pullata  Asteraceae  Essential  oil  composition  Caryophyllene  oxide  Phytol  6,10,14-trimethyl  2-pentadecanone Index. décimale : 646 Résumé : The essential oil composition of Centaurea pullata L. was obtained by water distillation, yielding 0.03% of oil on dry weight basis. The oil composition was analyzed by a combination of GC and GC/MS techniques. Sixty components, representing 83.1% of the total oil, were identified, six of which have not been previously reported in Centaurea oils. The principal constituents were identified as caryophyllene oxide (27.0%), phytol isomer (16.5%) and 6,10,14-trimethyl 2-pentadecanone (14.9%). These results show remarkable qualitative and quantitative differences with previously reported studies for Centaurea species. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top

Volatile constituents of the essential oil of ruta chalepensis L. subsp. angustifolia (Pers.) P. cout. / Tahar Dob in The journal of essential oil research, Vol. 20 n°4 (Juillet/Août 2008) 

Public ISBD [article]  in The journal of essential oil research > Vol. 20 n°4 (Juillet/Août 2008) . - pp. 306-309 Titre : Volatile constituents of the essential oil of ruta chalepensis L. subsp. angustifolia (Pers.) P. cout. Type de document : texte imprimé Auteurs : Tahar Dob, Auteur ; Dahmane Dahmane, Auteur ; Bénédicte Gauriat-Desrdy, Auteur Année de publication : 2008 Article en page(s) : pp. 306-309 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Ruta  chalepensis  subsp.  angustifolia  Rutaceae  Essential  oil  composition  2-undecanone  2-nonanone  2-methyoctyl  acetate Résumé : The water distilled essential oil from aerial parts of Ruta chelepensis subsp. angustifolia (Pers.) P. Cout was investigated by GC and GC/MS techniques for the first time. The oil yield was 0.27%. It was characterized by a large amount of ketones (57.0%), with 2-undecanone (28.2%), 2-nonanone (20.0%), 2-methyloctyl acetate (12.7%) and 2-methyldecyl acetate (5.8%) being the major constituents found. A comparison with oils from Ruta species from different countries reported in literature shows a similarity in main compound with most species of these plants. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9700019 [article] Volatile constituents of the essential oil of ruta chalepensis L. subsp. angustifolia (Pers.) P. cout. [texte imprimé] / Tahar Dob, Auteur ; Dahmane Dahmane, Auteur ; Bénédicte Gauriat-Desrdy, Auteur . - 2008 . - pp. 306-309. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 20 n°4 (Juillet/Août 2008) . - pp. 306-309 Mots-clés : Ruta  chalepensis  subsp.  angustifolia  Rutaceae  Essential  oil  composition  2-undecanone  2-nonanone  2-methyoctyl  acetate Résumé : The water distilled essential oil from aerial parts of Ruta chelepensis subsp. angustifolia (Pers.) P. Cout was investigated by GC and GC/MS techniques for the first time. The oil yield was 0.27%. It was characterized by a large amount of ketones (57.0%), with 2-undecanone (28.2%), 2-nonanone (20.0%), 2-methyloctyl acetate (12.7%) and 2-methyldecyl acetate (5.8%) being the major constituents found. A comparison with oils from Ruta species from different countries reported in literature shows a similarity in main compound with most species of these plants. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9700019