title: Essential oil from aerial parts of of Betonica grandiflora Willd. from Iran.
abstract: The chemical composition of the essential oil obtained from the aerial parts of Betonica grandiflora Willd., growing wild in Iran, was analysed by gas chromatography-mass spectrometry for the first time. Overall, 40 volatile components were identified on the basis of their mass spectra characteristics and retention indices in which ledol (21.8%), myrtenyl acetate (21.7%), eudesm-7(11)-en-4-ol (6.5%), trans-caryophyllene (5.5%), α-bisabolol (4.9%) and isolongifolol (4.5%) were the major constituents. Oxygenated sesquiterpenes, monoterpene hydrocarbons and sesquiterpene hydrocarbons were the main groups of compounds with 45.6%, 23.1% and 18.4%, respectively. The oil was moderately active against Bacillus subtilis and Staphylococcus aureus and inactive against Enterococcus faecalis and Klebsiella pneumoniae.
authors.affiliation: Department of Chemistry, Faculty of Science, Shahid Beheshti University, G.C., Tehran, Iran.
authors.forename: Maryam
authors.initials: M
authors.lastname: Yousefi
authors.forename: Somayyeh
authors.initials: S
authors.lastname: Gandomkar
authors.forename: Zohreh
authors.initials: Z
authors.lastname: Habibi
mesh_terms: D000900:Anti-Bacterial Agents / Q000032:analysis* / Q000494:pharmacology; D001412:Bacillus subtilis / Q000187:drug effects; D013293:Enterococcus faecalis / Q000187:drug effects; D008401:Gas Chromatography-Mass Spectrometry; D007492:Iran; D007711:Klebsiella pneumoniae / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D000081222:Monocyclic Sesquiterpenes; D039821:Monoterpenes / Q000032:analysis*; D009822:Oils, Volatile / Q000737:chemistry* / Q000494:pharmacology; D035261:Plant Components, Aerial / Q000737:chemistry*; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes / Q000032:analysis*; D031366:Stachys / Q000737:chemistry*; D013211:Staphylococcus aureus / Q000187:drug effects
chemical_list: D000900:Anti-Bacterial Agents; D000081222:Monocyclic Sesquiterpenes; D039821:Monoterpenes; D009822:Oils, Volatile; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes; C502389:isolongifolol; C004497:bisabolol; C421806:ledol; C024714:caryophyllene