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Volatile constituents of pinus pinea L. needles / Nizar Nasri in The journal of essential oil research, Vol. 23 N° 2 (Mars/Avril 2011) 

Public ISBD [article]  in The journal of essential oil research > Vol. 23 N° 2 (Mars/Avril 2011) . - pp. 15-19 Titre : Volatile constituents of pinus pinea L. needles Type de document : texte imprimé Auteurs : Nizar Nasri, Auteur ; Nizar Tlili, Auteur ; Saïda Triki, Auteur Année de publication : 2011 Article en page(s) : pp. 15-19 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Pinus  pinea  Pinaceae  Essential  oil  composition  Limonene  Chemical  variability Index. décimale : 646 Résumé : The composition of the essential oil hydro-distilled from needles of Pinus pinea L. trees, collected from six populations coming from Northern Tunisia was determined by GC and GC/MS analysis. Fifty-seven components, accounting for 94.4–99.9% of the oil were identified. As expected, the majority of the identified metabolites were found to be monoterpenes and sesquiterpenes. Monoterpenes account about 76% with 34 of 57 compounds identified. The principal component was limonene (35.9%) followed by α-pinene (6.4%). Sesquiterpenes (ca.19%) were mainly β-cubebene (1.8%), β-caryophyllene (1.7%), α humulene (1.7%) and β-farnesene (1.7%). Diterpenes (1.4%) were present in few concentrations mainly at one population. Data projection on axes of principal component analysis from P. pinea samples showed significant geographic polymorphism between Tunisian populations. This suggests that, using an appropriate wide-range sample of P. pinea populations, terpenes could be used to study the genetic diversity of P. pinea. This species has never shown a noticeable genetic variability using microsatellites, fatty acids or allozymes. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700441 [article] Volatile constituents of pinus pinea L. needles [texte imprimé] / Nizar Nasri, Auteur ; Nizar Tlili, Auteur ; Saïda Triki, Auteur . - 2011 . - pp. 15-19. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 23 N° 2 (Mars/Avril 2011) . - pp. 15-19 Mots-clés : Pinus  pinea  Pinaceae  Essential  oil  composition  Limonene  Chemical  variability Index. décimale : 646 Résumé : The composition of the essential oil hydro-distilled from needles of Pinus pinea L. trees, collected from six populations coming from Northern Tunisia was determined by GC and GC/MS analysis. Fifty-seven components, accounting for 94.4–99.9% of the oil were identified. As expected, the majority of the identified metabolites were found to be monoterpenes and sesquiterpenes. Monoterpenes account about 76% with 34 of 57 compounds identified. The principal component was limonene (35.9%) followed by α-pinene (6.4%). Sesquiterpenes (ca.19%) were mainly β-cubebene (1.8%), β-caryophyllene (1.7%), α humulene (1.7%) and β-farnesene (1.7%). Diterpenes (1.4%) were present in few concentrations mainly at one population. Data projection on axes of principal component analysis from P. pinea samples showed significant geographic polymorphism between Tunisian populations. This suggests that, using an appropriate wide-range sample of P. pinea populations, terpenes could be used to study the genetic diversity of P. pinea. This species has never shown a noticeable genetic variability using microsatellites, fatty acids or allozymes. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700441