Chemical composition of leaf oil from Polyalthialongifolia (Sonnerat) Thwait. grown in Côte d’Ivoire

International audience; The chemical composition of 35 leaf oil samples from Polyalthia longifolia (Sonnerat) Thwait., growingin five districts in Abidjan and its suburbs, has been investigated by GC(FID) in combination withretention indices, GC–MS and 13C-NMR. In total, 30 individual components have been identified,mostly sesquiterpenes. The contents of the main components varied substantially from sample tosample: (E)-β-caryophyllene (18.9–31.4%), α-zingiberene (6.1–22.1%), allo-aromadendrene (12.4–17.3%) and α-humulene (6.4–11.0%). However, PCA was unable to differentiate groups within the35 compositions. The chemical composition of Ivorian P. longifolia leaf oils may be summarizedas follow: (E)-β-caryophyllene (M = 25.3%; SD = 1.2), allo-aromadendrene (M = 15.2%; SD = 0.5),α-zingiberene (M = 13.6%; SD = 3.6) and α-humulene (M = 8.4%; SD = 0.2).