title: Comparison of the volatile composition of Stachys persica Gmel. and Stachys byzantina C. Koch. oils obtained by hydrodistillation and steam distillation.
abstract: The oils obtained by hydrodistillation and steam distillation of the aerial parts of Stachys persica Gmel. and Stachys byzantina C. Koch grown in Iran were analyzed by GC/MS. The essential oil obtained by hydrodistillation of the aerial parts of S. persica was characterized by a high amount of non-terpenoid components of which methyllinoleate (27.7%), hexadecanoic acid (9.8%) and 6,10,14-trimethyl-2-pentadecanone (9.2%) were the major constituents, whereas the steam distilled oil of the plant contained hexadecanoic acid (27.2%), carvacrol (9.4%) and eugenol (5.2%). Both hydrodistilled and steam distilled essential oils of the aerial parts of S. byzantina were rich in sesquiterpenes such as a-copaene (16.6% and 10.4%), spathulenol (16.1% and 18.5%) and beta-caryophyllene (14.3% and 13.5%), respectively.
authors.affiliation: Department of Pharmacognosy and Pharmaceutical Sciences Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Mahnaz
authors.initials: M
authors.lastname: Khanavi
authors.forename: Abbas
authors.initials: A
authors.lastname: Hadjiakhoondi
authors.forename: Gholamreza
authors.initials: G
authors.lastname: Amin
authors.forename: Yaghoob
authors.initials: Y
authors.lastname: Amanzadeh
authors.forename: Abdolhossein
authors.initials: A
authors.lastname: Rustaiyan
authors.forename: Abbas
authors.initials: A
authors.lastname: Shafiee
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry; D007492:Iran; D035261:Plant Components, Aerial / Q000737:chemistry; D010938:Plant Oils / Q000737:chemistry* / Q000302:isolation & purification; D013045:Species Specificity; D031366:Stachys / Q000737:chemistry*
chemical_list: D010938:Plant Oils