title: Chemical composition of the essential oils of the flowers, leaves and stems of two senecio polyanthemoides Sch. Bip. samples from South Africa.
abstract: The essential oils of the flowers, leaves and stems of Senecio polyanthemoides Sch. Bip. Samples collected from two different localities within the city of uMhlathuze, KwaZulu-Natal Province (South Africa) were isolated by hydrodistillation and analyzed using GC and GC/MS. Twenty-six constituents were identified, representing an average of 86.0 - 99.6% of the total oil composition. The chemical profile reveals the dominance of monoterpenoid compounds, although some quantitative variance was noticed. The main constituents of the oils were limonene (3.1 - 43.0%), p-cymene (4.9-36.3%), beta-selinene (1.3-32.7%), alpha-pinene (1.8-21.4%), beta-pinene (7.6-16.5%) and 1,8-cineole (9.3-11.4%), caryophyllene oxide (4.1-13.4%) and humulene epoxide II (8.6-10.3%).
authors.affiliation: Department of Chemistry, University of Zululand, KwaDlangezwa 3886, South Africa.
authors.forename: Lawal A
authors.initials: LA
authors.lastname: Oladipupo
authors.forename: Oyedeji O
authors.initials: OO
authors.lastname: Adebola
mesh_terms: D000081008:Bicyclic Monoterpenes; D001643:Bridged Bicyclo Compounds / Q000737:chemistry; D003511:Cyclohexanols / Q000737:chemistry; D053138:Cyclohexenes / Q000737:chemistry; D000081007:Cymenes; D000077591:Eucalyptol; D035264:Flowers / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D000077222:Limonene; D039821:Monoterpenes / Q000737:chemistry; D009822:Oils, Volatile / Q000737:chemistry* / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry*; D000081223:Polycyclic Sesquiterpenes; D012674:Senecio / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry; D045787:Sesquiterpenes, Eudesmane; D013019:South Africa; D013729:Terpenes / Q000737:chemistry; D013764:Tetrahydronaphthalenes / Q000737:chemistry
chemical_list: D000081008:Bicyclic Monoterpenes; D001643:Bridged Bicyclo Compounds; D003511:Cyclohexanols; D053138:Cyclohexenes; D000081007:Cymenes; D039821:Monoterpenes; D009822:Oils, Volatile; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes; D045787:Sesquiterpenes, Eudesmane; D013729:Terpenes; D013764:Tetrahydronaphthalenes; C087920:beta-selinene; C007210:4-cymene; C010789:beta-pinene; D000077222:Limonene; C005451:alpha-pinene; D000077591:Eucalyptol; C515179:caryophyllene oxide