title: Composition of the essential oils in various organs at different developmental stages of Ammi visnaga (L.) Lam. from Tunisia.
abstract: The composition of the essential oils isolated by hydrodistillation from various organs at different development stages of Ammi visnaga (L.) Lam. growing in Tunisia was determined by GC/MS analysis. In particular, the oil profiles of the leaves, stems, flower buds, roots, umbels, and fruits have been examined during the whole life cycle. The oil from the flowering aerial parts was characterized by a high content of isoamyl 2-methylbutanoate. After flowering and during desiccation and fructification, the umbels and fruits expressed a high content of linalool. The oils, extracted from the roots collected in the vegetatif, buds floral, and floral stages, were rich in monoterpene aldehydes, oxygenated monoterpenes, and monoterpene hydrocarbons. The highest level of non-terpene hydrocarbons was found at the flower-bud stage, represented by 61.3% of nonane. Among the monoterpenes, sabinene (12.5%) and β-pinene (8.5%) were identified in the flower buds.
authors.affiliation: University of El-Manar II, Faculty of Sciences, Unity of Research of Ecology, Tunis, Tunisia. helaksellami@yahoo.fr
authors.forename: Hela Kallel
authors.initials: HK
authors.lastname: Sellami
authors.forename: Guido
authors.initials: G
authors.lastname: Flamini
authors.forename: Pier Luigi
authors.initials: PL
authors.lastname: Cioni
authors.forename: Samira
authors.initials: S
authors.lastname: Smiti
mesh_terms: D031165:Ammi / Q000737:chemistry* / Q000254:growth & development*; D008401:Gas Chromatography-Mass Spectrometry; D009822:Oils, Volatile / Q000302:isolation & purification*; D010938:Plant Oils / Q000302:isolation & purification*; D018514:Plant Structures / Q000737:chemistry* / Q000254:growth & development*; D014416:Tunisia
chemical_list: D009822:Oils, Volatile; D010938:Plant Oils