title: Composition and Chemical Variability of Ivoirian Polyalthia oliveri Leaf Oil.
abstract: The chemical composition of 45 essential oil samples isolated from the leaves of Polyalthia oliveri harvested in three Ivoirian forests was investigated by GC-FID (retention indices measured on two columns of different polarities), and by (13) C-NMR, following a method developed in our laboratory. In total, 41 components were identified. The content of the main components varied drastically from sample to sample: (E)-β-caryophyllene (1.2 - 50.8%), α-humulene (0.6 - 47.7%), isoguaiene (0 - 27.9%), alloaromadendrene (0 - 24.7%), germacrene B (0 - 18.3%), δ-cadinene (0.4 - 19.3%), and β-selinene (0.2 - 18.5%). The analysis of six oil samples selected in function of their chromatographic profiles is reported in detail. The 45 oil compositions were submitted to hierarchical cluster and principal components analysis, which allowed the distinction of three groups within the oil samples. The compositions of the oils from group I (15 samples) and II (12 samples) were dominated by (E)-β-caryophyllene and α-humulene, respectively. Oil samples of group III (18 samples) needed to be partitioned into four subgroups III.1-III.4 whose compositions were dominated by alloaromadenrene, isoguaiene, germacrene B, and δ-cadinene, respectively.
authors.affiliation: Université de Corse-CNRS, UMR 6134 SPE, Equipe Chimie et Biomasse, Route des Sanguinaires, FR-20000, Ajaccio, France.|Laboratoire de Chimie Organique Biologique, UFR-SSMT, Université Félix Houphouët-Boigny, BPV 34, Abidjan, Côte d'Ivoire.
authors.forename: Zana A
authors.initials: ZA
authors.lastname: Ouattara
authors.affiliation: Laboratoire de Chimie Organique Biologique, UFR-SSMT, Université Félix Houphouët-Boigny, BPV 34, Abidjan, Côte d'Ivoire.
authors.forename: Jean Brice
authors.initials: JB
authors.lastname: Boti
authors.affiliation: Laboratoire de Chimie Organique Biologique, UFR-SSMT, Université Félix Houphouët-Boigny, BPV 34, Abidjan, Côte d'Ivoire.
authors.forename: Coffy Antoine
authors.initials: CA
authors.lastname: Ahibo
authors.affiliation: Laboratoire de Chimie Bio-Organique et des Substances Naturelles, UFR SFA, Université Nangui Abrogoua, 02 BP 801, Abidjan 01, Côte d'Ivoire.
authors.forename: Yves-Alain
authors.initials: YA
authors.lastname: Bekro
authors.affiliation: Université de Corse-CNRS, UMR 6134 SPE, Equipe Chimie et Biomasse, Route des Sanguinaires, FR-20000, Ajaccio, France.
authors.forename: Joseph
authors.initials: J
authors.lastname: Casanova
authors.affiliation: Université de Corse-CNRS, UMR 6134 SPE, Equipe Chimie et Biomasse, Route des Sanguinaires, FR-20000, Ajaccio, France.
authors.forename: Félix
authors.initials: F
authors.lastname: Tomi
authors.affiliation: Université de Corse-CNRS, UMR 6134 SPE, Equipe Chimie et Biomasse, Route des Sanguinaires, FR-20000, Ajaccio, France.
authors.forename: Ange
authors.initials: A
authors.lastname: Bighelli
mesh_terms: D018515:Plant Leaves / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry* / Q000302:isolation & purification; D031044:Polyalthia / Q000737:chemistry*
chemical_list: D010938:Plant Oils
keywords: (E)-β-Caryophyllene; Alloaromadenrene; Essential oils; Isoguaiene; Polyalthia oliveri; Statistical analysis; α-Humulene