title: GC/MS analysis of the essential oil of Leucas indica from India.
abstract: The aim of the present study was to investigate and identify the essential oil constituents of Leucas indica (L.) R.Br. (Lamiaceae). The chemical composition of the hydro-distilled essential oil was obtained from the flowering aerial parts of L. indica for the first time. The oil was analyzed by gas chromatography equipped with flame ionization detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC/MS). Fifty-six compounds were identified, representing 99.1% of the total oil. The main constituents were β-caryophyllene (51.1%) and α-caryophyllene (10.2%). The oil was found to be rich in sesquiterpene hydrocarbons (71.8%).
authors.forename: Rajesh K
authors.initials: RK
authors.lastname: Joshi
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry; D007194:India; D019686:Lamiaceae / Q000737:chemistry*; D009822:Oils, Volatile / Q000032:analysis* / Q000737:chemistry*; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes / Q000032:analysis / Q000737:chemistry
chemical_list: D009822:Oils, Volatile; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes; C024714:caryophyllene