Composition of the Essential Oils of Four Nepeta species from Iran
2013
Rustaiyan, Abdolhossein | Masoudi, Shiva | Vahedi, Maryam | Fathollahi, Rohollah
The essential oils obtained by hydrodistillation of the aerial part of Nepeta prostrata , flowers of N. straussii , which are endemic to Iran, aerial parts of N. saccharata and leaves of N. pungens have been analyzed by a combination of GC and GC-MS. The oils of N. prostrata and N. straussii were rich in 1,8-cineole (26.1 % and 22.1 %) and β-pinene (13.6 % and 12.1 %), respectively. The other main component of the first oil was myrtenol (11.8 %) and in the latter one was germacrene-D (18.5 %). The major components of the oil of N. saccharata were neo-isomenthol (18.6 %), hexadecanoic acid (12.1 %), 1,8-cinole (11.7 %) and germacrene- D (11.6 %). (E)-Sesquilavandulol (39.5 %), β-caryophyllene (14.7 %) and caryophyllene oxide (11.6 %) were the predominant compounds in the oil of N. pungens. All oils consisted mainly of oxygenated monoterpenes except that of the N. pungens , which was rich in oxygenated sesquiterpenes.
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