Documents disponibles écrits par cet auteur

Essential oil variability of satureja cuneifolia ten. growing wild in southern puglia (Italy) / Luca Tommasi 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. 295-302 Titre : Essential oil variability of satureja cuneifolia ten. growing wild in southern puglia (Italy) Type de document : texte imprimé Auteurs : Luca Tommasi, Auteur ; Carmine Negro, Auteur ; Luigi De Bellis, Auteur Année de publication : 2008 Article en page(s) : pp. 295-302 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Satureja  cuneifolia  Lamiaceae  Essential  oil  composition  Chemotypes  Linalool  Borneol  α-pinene Résumé : Satureja cuneifolia Ten. spontaneously growing in 12 sites in Southern Puglia (Italy), was characterized on the basis of its essential oil composition. Qualitative and quantitative analyses of steam-distilled oil were performed by GC and GC/MS. Cluster analysis made it possible to identify four different chemotypes: linalool, borneol, α-pinene, and borneol/α-pinene. Principal Component Analysis (PCA) highlighted the relations existing between the compounds that constitute the essential oils. Moreover, spatial autocorrelation, evaluated in the space described by the principal components, was used to analyse the relationships between chemical polymorphism and certain large-scale environmental conditions proper to sampling sites. Specifically, the arrangement of values in relation to Yearly Rainfall (YR) was found not to be random: the findings showed that increased water availability in the soil causes an arise in the presence of the borneol chemotype. In contrast, reduced water availability is directly correlated with the presence of the linalool and α-pinene chemotypes. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9700017 [article] Essential oil variability of satureja cuneifolia ten. growing wild in southern puglia (Italy) [texte imprimé] / Luca Tommasi, Auteur ; Carmine Negro, Auteur ; Luigi De Bellis, Auteur . - 2008 . - pp. 295-302. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 20 n°4 (Juillet/Août 2008) . - pp. 295-302 Mots-clés : Satureja  cuneifolia  Lamiaceae  Essential  oil  composition  Chemotypes  Linalool  Borneol  α-pinene Résumé : Satureja cuneifolia Ten. spontaneously growing in 12 sites in Southern Puglia (Italy), was characterized on the basis of its essential oil composition. Qualitative and quantitative analyses of steam-distilled oil were performed by GC and GC/MS. Cluster analysis made it possible to identify four different chemotypes: linalool, borneol, α-pinene, and borneol/α-pinene. Principal Component Analysis (PCA) highlighted the relations existing between the compounds that constitute the essential oils. Moreover, spatial autocorrelation, evaluated in the space described by the principal components, was used to analyse the relationships between chemical polymorphism and certain large-scale environmental conditions proper to sampling sites. Specifically, the arrangement of values in relation to Yearly Rainfall (YR) was found not to be random: the findings showed that increased water availability in the soil causes an arise in the presence of the borneol chemotype. In contrast, reduced water availability is directly correlated with the presence of the linalool and α-pinene chemotypes. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9700017