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Composition and antiwormal activity of essential oil from sideritis taurica stephan ex willd grown in Egypt / E. A. Aboutabl in The journal of essential oil research, Vol. 21 N°1 (Janvier/Février 2009) 

Public ISBD [article]  in The journal of essential oil research > Vol. 21 N°1 (Janvier/Février 2009) . - pp. 94-96 Titre : Composition and antiwormal activity of essential oil from sideritis taurica stephan ex willd grown in Egypt Type de document : texte imprimé Auteurs : E. A. Aboutabl, Auteur ; K.M. Meselhy, Auteur ; A.M. El-Azzouny, Auteur Article en page(s) : pp. 94-96 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Sideritis  taurica  Lamiaceae  Essential  oil  composition  α-pinene  β-pinene  α-cadinol  Antiwormal  Activity Index. décimale : 646 Résumé : The aerial parts of Sideritis taurica Stephan ex Willd grown in Egypt yielded 0.12% and 0.23% (v/w) of essential oil by hydrodistillation (HD) and simultaneous hydrodistillation-solvent (pentane) extraction (Lickens-Nickerson, LN), respectively. GC-FID and GC/MS analysis revealed that the two oil samples were identical in composition, but differing in the percentages of certain components. Thirty-two components were identified in each, representing 92% and 93.3%, respectively. Oxygenated compounds were dominant in HD oil, being 50.6% compared with LN sample (37.4%); while the hydrocarbons amounted to 41.4% and 55.9%, respectively. Monoterpene hydrocarbons were mainly β-pinene (11.4% and 17.7%) and α-pinene (3.8% and 12.8%), respectively. The main sesquiterpene hydrocarbons were aromadendrene (4.6 % and 3.5%) and α-cubebene (3% and 2.2%), respectively. The main oxygenated monoterpenes were α-terpineol (2.8% and 2%) and trans-pinocarveol (1.8% and 1.4%), respectively; while the major oxygenated sesquiterpenes were α-cadinol (22.4% and 12.2%), curcumenol (7.6% and 3.5%) and α-bisabolol (7.4% and 2.9%), respectively. The two oil samples exhibited significant antiwormal activity against the earthworm Allolobophora caliginosa, offering a support to recommendations of the possible utility of the oil of S. taurica as antiwormal agent and verifying the correlation between increased antiwormal activity of an essential oil with its high content of oxygenated compounds. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top [article] Composition and antiwormal activity of essential oil from sideritis taurica stephan ex willd grown in Egypt [texte imprimé] / E. A. Aboutabl, Auteur ; K.M. Meselhy, Auteur ; A.M. El-Azzouny, Auteur . - pp. 94-96. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 21 N°1 (Janvier/Février 2009) . - pp. 94-96 Mots-clés : Sideritis  taurica  Lamiaceae  Essential  oil  composition  α-pinene  β-pinene  α-cadinol  Antiwormal  Activity Index. décimale : 646 Résumé : The aerial parts of Sideritis taurica Stephan ex Willd grown in Egypt yielded 0.12% and 0.23% (v/w) of essential oil by hydrodistillation (HD) and simultaneous hydrodistillation-solvent (pentane) extraction (Lickens-Nickerson, LN), respectively. GC-FID and GC/MS analysis revealed that the two oil samples were identical in composition, but differing in the percentages of certain components. Thirty-two components were identified in each, representing 92% and 93.3%, respectively. Oxygenated compounds were dominant in HD oil, being 50.6% compared with LN sample (37.4%); while the hydrocarbons amounted to 41.4% and 55.9%, respectively. Monoterpene hydrocarbons were mainly β-pinene (11.4% and 17.7%) and α-pinene (3.8% and 12.8%), respectively. The main sesquiterpene hydrocarbons were aromadendrene (4.6 % and 3.5%) and α-cubebene (3% and 2.2%), respectively. The main oxygenated monoterpenes were α-terpineol (2.8% and 2%) and trans-pinocarveol (1.8% and 1.4%), respectively; while the major oxygenated sesquiterpenes were α-cadinol (22.4% and 12.2%), curcumenol (7.6% and 3.5%) and α-bisabolol (7.4% and 2.9%), respectively. The two oil samples exhibited significant antiwormal activity against the earthworm Allolobophora caliginosa, offering a support to recommendations of the possible utility of the oil of S. taurica as antiwormal agent and verifying the correlation between increased antiwormal activity of an essential oil with its high content of oxygenated compounds. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top