title: Chemical variability of the leaf essential oil of Xylopia aethiopica (Dunal) A.Rich. from Côte d'Ivoire.
abstract: The chemical composition of 48 essential-oil samples isolated from the leaves of Xylopia aethiopica harvested in six Ivoirian forests was investigated by GC-FID and (13) C-NMR analyses. In total, 23 components accounting for 82.5-96.1% of the oil composition were identified. The composition was dominated by the monoterpene hydrocarbons β-pinene (up to 61.1%) and α-pinene (up to 18.6%) and the sesquiterpene hydrocarbon germacrene D (up to 28.7%). Hierarchical cluster and principal component analyses allowed the distinction of two groups on the basis of the β-pinene and germacrene D contents. The chemical composition of the oils of Group I (38 oil samples) was clearly dominated by β-pinene, while those of Group II (10 samples) were characterized by the association of β-pinene and germacrene D. The leaves collected in the four inland forests produced β-pinene-rich oils (Group I), while the oil samples belonging to Group II were isolated from leaves harvested in forests located near the littoral.
authors.affiliation: Laboratoire de Chimie Organique Biologique, UFR-SSMT, Université de Cocody-Abidjan, BPV 34 Abidjan, Côte d'Ivoire.
authors.forename: Thierry Acafou
authors.initials: TA
authors.lastname: Yapi
authors.forename: Jean Brice
authors.initials: JB
authors.lastname: Boti
authors.forename: Coffy Antoine
authors.initials: CA
authors.lastname: Ahibo
authors.forename: Ange
authors.initials: A
authors.lastname: Bighelli
authors.forename: Vincent
authors.initials: V
authors.lastname: Castola
authors.forename: Joseph
authors.initials: J
authors.lastname: Casanova
authors.forename: Félix
authors.initials: F
authors.lastname: Tomi
mesh_terms: D002849:Chromatography, Gas; D016000:Cluster Analysis; D007560:Cote d'Ivoire; D009682:Magnetic Resonance Spectroscopy; D009822:Oils, Volatile / Q000737:chemistry* / Q000145:classification; D018515:Plant Leaves / Q000737:chemistry; D025341:Principal Component Analysis; D054336:Xylopia / Q000737:chemistry*
chemical_list: D009822:Oils, Volatile