Documents disponibles écrits par cet auteur

Chemical composition of the essential oil of artemisia herba-alba asso grown in Algeria / Tahar Dob in The journal of essential oil research, Vol. 18 N° 6 (Novembre-Décembre 2006) 

Public ISBD [article]  in The journal of essential oil research > Vol. 18 N° 6 (Novembre-Décembre 2006) . - pp. 685-690 Titre : Chemical composition of the essential oil of artemisia herba-alba asso grown in Algeria Type de document : texte imprimé Auteurs : Tahar Dob, Auteur ; Tarek Benabdelkader, Auteur Année de publication : 2006 Article en page(s) : pp. 685-690 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Artemisia  herba-alba  Asteraceae  Essential  oil  composition  Camphor  Trans-pinocarveol  Chrysanthenone  β-thujone Résumé : The essential oil obtained by hydrodistillation from the aerial parts of Artemisia herba-alba Asso growing wild in M'sila-Algeria, was investigated using both capillary GC and GC/MS techniques. The oil yield was 1.02% based on dry weight. Sixty-eight components amounting to 94.7% of the oil were identifed, 33 of them being reported for the frst time in Algerian A. herba-alba oil and 21 of these components have not been previously reported in A. herba-alba oils. The oil contained camphor (19.4%), trans-pinocarveol (16.9%), chrysanthenone (15.8%) and β-thujone (15%) as major components. Monoterpenoids are the main components (86.1%), and the irregular monoterpenes fraction represented a 3.1% yield. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2006.9699206#.UXPsVkqC5mM [article] Chemical composition of the essential oil of artemisia herba-alba asso grown in Algeria [texte imprimé] / Tahar Dob, Auteur ; Tarek Benabdelkader, Auteur . - 2006 . - pp. 685-690. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 18 N° 6 (Novembre-Décembre 2006) . - pp. 685-690 Mots-clés : Artemisia  herba-alba  Asteraceae  Essential  oil  composition  Camphor  Trans-pinocarveol  Chrysanthenone  β-thujone Résumé : The essential oil obtained by hydrodistillation from the aerial parts of Artemisia herba-alba Asso growing wild in M'sila-Algeria, was investigated using both capillary GC and GC/MS techniques. The oil yield was 1.02% based on dry weight. Sixty-eight components amounting to 94.7% of the oil were identifed, 33 of them being reported for the frst time in Algerian A. herba-alba oil and 21 of these components have not been previously reported in A. herba-alba oils. The oil contained camphor (19.4%), trans-pinocarveol (16.9%), chrysanthenone (15.8%) and β-thujone (15%) as major components. Monoterpenoids are the main components (86.1%), and the irregular monoterpenes fraction represented a 3.1% yield. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2006.9699206#.UXPsVkqC5mM

Chemical composition of the essential oil of juniperus phoenicea L. from Algeria / Tahar Dob 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. 15-20 Titre : Chemical composition of the essential oil of juniperus phoenicea L. from Algeria Type de document : texte imprimé Auteurs : Tahar Dob, Auteur ; Dahmane Dahmane, Auteur ; Chaabane Chelghoum, Auteur Année de publication : 2008 Article en page(s) : pp. 15-20 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Juniperus  phoenicea  Cupressacae  Essential  oil  composition  α-pinene  α-phellandrene Résumé : The chemical composition of the essential oil of Juniperus phoenicea from Algeria was investigated for the first time. The volatile oil was isolated by hydrodistillation in yield 0.80% and was analyzed by GC/FID and GC/MS techniques. One hundred and three constituents, representing 96.0% of the oil was identified, twenty-three being reported for the first time in J. phoenicea oil. The oil was characterized by the presence of high amounts of monoterpene hydrocarbons (62.2%) and by a lower percentage of oxygenated sesquiterpenes (8.8%), of which α-pinene (40.2%), α-phellandrene (14.7%) and elemol (3.9%) were the main compounds. Also the oil was characterized by the presence of three diterpenes constituents; manoyl oxide, abietadiene and cis-totarol amounting to 0.3%. A comparison with the composition of the oils of J. phoenicea (subspecies and varieties) of other countries reported in literature is discussed briefly. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9699410 [article] Chemical composition of the essential oil of juniperus phoenicea L. from Algeria [texte imprimé] / Tahar Dob, Auteur ; Dahmane Dahmane, Auteur ; Chaabane Chelghoum, Auteur . - 2008 . - pp. 15-20. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 20 N°1 (Janvier/Fevrier 2008) . - pp. 15-20 Mots-clés : Juniperus  phoenicea  Cupressacae  Essential  oil  composition  α-pinene  α-phellandrene Résumé : The chemical composition of the essential oil of Juniperus phoenicea from Algeria was investigated for the first time. The volatile oil was isolated by hydrodistillation in yield 0.80% and was analyzed by GC/FID and GC/MS techniques. One hundred and three constituents, representing 96.0% of the oil was identified, twenty-three being reported for the first time in J. phoenicea oil. The oil was characterized by the presence of high amounts of monoterpene hydrocarbons (62.2%) and by a lower percentage of oxygenated sesquiterpenes (8.8%), of which α-pinene (40.2%), α-phellandrene (14.7%) and elemol (3.9%) were the main compounds. Also the oil was characterized by the presence of three diterpenes constituents; manoyl oxide, abietadiene and cis-totarol amounting to 0.3%. A comparison with the composition of the oils of J. phoenicea (subspecies and varieties) of other countries reported in literature is discussed briefly. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9699410

Chemical composition of the essential oils of pistacia lentiscus L. from Algeria / Tahar Dob in The journal of essential oil research, Vol. 18 N° 3 (Mai-Juin 2006) 

Public ISBD [article]  in The journal of essential oil research > Vol. 18 N° 3 (Mai-Juin 2006) . - pp. 335-338 Titre : Chemical composition of the essential oils of pistacia lentiscus L. from Algeria Type de document : texte imprimé Auteurs : Tahar Dob, Auteur ; Dahmane Dahmane, Auteur ; Chaabane Chelghoum, Auteur Année de publication : 2006 Article en page(s) : pp. 335-338 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Pistacia  lentiscus  Anacardiaceae  Essential  oil  composition  α-pinene  Longifolene  Trans-β-terpineol  Sabinene Résumé : The essential oils of Pistacia lentiscus L. from three regions of Algeria (Algiers, Tizi-Ouzou and Oran) were isolated from aerial parts by hydrodistillation and were investigated by GC and GC/MS. Longifolene was predominant in the oils from Algiers (12.8%) and Tizi-Ouzou (16.4%), while α-pinene (19.0%) was the major constituent of the Oran oil. The other compounds of oils were present in important amounts; Algiers oil: γ-cadinene (6.2%)s, trans-β-terpineol (5.0%) and α-acorneol (4.6%); Tizi-Ouzou oil: trans-β-terpineol (15.6%), terpinen-4-ol (7.0%) and γ-muurolene (5.7%); Oran oil: trans-β-terpineol (13.1%), sabinene (12.6%) and β-pinene (6.5%). A comparison with oils from P. lentiscus of other countries reported in literature shows both qualitative and quantitative differences. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2006.9699105#.UaYNLtgYrOk [article] Chemical composition of the essential oils of pistacia lentiscus L. from Algeria [texte imprimé] / Tahar Dob, Auteur ; Dahmane Dahmane, Auteur ; Chaabane Chelghoum, Auteur . - 2006 . - pp. 335-338. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 18 N° 3 (Mai-Juin 2006) . - pp. 335-338 Mots-clés : Pistacia  lentiscus  Anacardiaceae  Essential  oil  composition  α-pinene  Longifolene  Trans-β-terpineol  Sabinene Résumé : The essential oils of Pistacia lentiscus L. from three regions of Algeria (Algiers, Tizi-Ouzou and Oran) were isolated from aerial parts by hydrodistillation and were investigated by GC and GC/MS. Longifolene was predominant in the oils from Algiers (12.8%) and Tizi-Ouzou (16.4%), while α-pinene (19.0%) was the major constituent of the Oran oil. The other compounds of oils were present in important amounts; Algiers oil: γ-cadinene (6.2%)s, trans-β-terpineol (5.0%) and α-acorneol (4.6%); Tizi-Ouzou oil: trans-β-terpineol (15.6%), terpinen-4-ol (7.0%) and γ-muurolene (5.7%); Oran oil: trans-β-terpineol (13.1%), sabinene (12.6%) and β-pinene (6.5%). A comparison with oils from P. lentiscus of other countries reported in literature shows both qualitative and quantitative differences. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2006.9699105#.UaYNLtgYrOk

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