GC and GC-MS analysis of the essential oil of Nepeta cilicica Boiss. ex Benth. from Lebanon

Nat Prod Res. 2013;27(21):1975-81. doi: 10.1080/14786419.2013.805332. Epub 2013 Jun 18.

Abstract

The hydrodistillation of the aerial parts of Nepeta cilicica Boiss. ex Benth., collected in Lebanon in the Horsh Ehden reserve, yielded 0.13% (w/w) of essential oil. Gas chromatography (GC) and GC-mass spectroscopy analysis enabled the identification of 75 compounds representing 96.8% of the total oil. The most abundant compounds were spathulenol (15.1%), hexadecanoic acid (14%), δ-cadinene (5.5%) and α-copaene (4.5%). On the whole, the oil was constituted mainly by sesquiterpenes (45.9%), among which sesquiterpene hydrocarbons (27.6%) slightly prevailed over oxygenated sesquiterpenes (18.3%).

MeSH terms

  • Chromatography, Gas / methods*
  • Gas Chromatography-Mass Spectrometry / methods*
  • Lebanon
  • Nepeta / chemistry*
  • Oils, Volatile / analysis*
  • Palmitic Acid / analysis
  • Sesquiterpenes / analysis

Substances

  • Oils, Volatile
  • Sesquiterpenes
  • Palmitic Acid
  • spathulenol