title: Analysis of essential oils from Scutellaria orientalis ssp. alpina and S. utriculata by GC and GC-MS.
abstract: The chemical composition of the essential oils obtained from aerial parts of Scutellaria orientalis L. ssp. alpina (Boiss.) O. Schwarz and S. utriculata Labill. growing wild in Lebanon, were analyzed by GC and GC-MS. In S. orientalis ssp. alpina, strongly characterized by sesquiterpenes (41.2%) and particularly sesquiterpene hydrocarbons (31.7%), hexahydrofarnesylacetone (11.7%) was recognized as the main constituent, together with hexadecanoic acid (7.6%), caryophyllene (7.4%), caryophyllene oxide (6.8%), 4-vinylguaiacol (5.4%) and germacrene D (5.4%). S. utriculata oil was instead constituted above all by monoterpenes (42.2%), particularly oxygen containing monoterpenes (39.9%), and in this oil the main compounds were linalool (20.1%), 4-vinyl guaiacol (15.5%), alpha-terpineol (8.9%), (E)-nerolidol (8.9%) and geraniol (8.2%).
authors.affiliation: Department of Chemistry of Natural Compounds, University of Naples "Federico II", Via D. Montesano, 49, I-80131 Naples, Italy.
authors.forename: Carmen
authors.initials: C
authors.lastname: Formisano
authors.forename: Daniela
authors.initials: D
authors.lastname: Rigano
authors.forename: Felice
authors.initials: F
authors.lastname: Senatore
authors.forename: Franco
authors.initials: F
authors.lastname: Piozzi
authors.forename: Nelly Apostolides
authors.initials: NA
authors.lastname: Arnold
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D009822:Oils, Volatile / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry*; D031363:Scutellaria / Q000737:chemistry*
chemical_list: D009822:Oils, Volatile; D010938:Plant Oils