title: Analysis by gas chromatography-mass spectrometry of the volatile components of Teucrium lusitanicum and Teucrium algarbiensis.
abstract: The essential oils from four samples of Teucrium lusitanicum and one sample of Teucrium algarbiensis, grown in Algarve (southern Portugal) were analyzed by gas chromatography (GC) and gas chromatography-mass spectroscopy (GC-MS). Seventy-one volatile compounds were identified. Major compounds of T. algarbiensis oil were alpha-pinene (8.3%), sabinene (7.2%), beta-pinene (10.2%), limonene (11.8%) and germacrene D (7.6%). Concerning T. lusitanicum, some quantitative differences were found with regards to the major constituents of the oils from four populations: alpha-pinene (0.8-8.5%), sabinene (2.1-9.6%), beta-pinene (2.5-11.9%), limonene (1.2-11.5%) and elemol (2.6-12.0%).
authors.affiliation: Lab. de Farmacognosia, Faculdade de Farmácia/CEF Universidade de Coimbra, Rua do Norte, 3000-295 Coimbra, Portugal. cavaleir@ff.uc.pt
authors.forename: C
authors.initials: C
authors.lastname: Cavaleiro
authors.forename: L R
authors.initials: LR
authors.lastname: Salgueiro
authors.forename: M G
authors.initials: MG
authors.lastname: Miguel
authors.forename: A
authors.initials: A
authors.lastname: Proença da Cunha
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D009822:Oils, Volatile / Q000737:chemistry*; D031367:Teucrium / Q000737:chemistry*; D014835:Volatilization
chemical_list: D009822:Oils, Volatile