cis-Ocimenone chemotype essential oil of green mint (Mentha viridis L.) from Western Ghats region of North West Karnataka, India

Abstract

The hydro-distilled essential oil of the leaves of Mentha viridis L. was analyzed by gas chromatography equipped with flame ionization detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC/MS). A total of fifty constituents have been identified, accounting 95.4% of the total oil. The major compounds were identifies as cis-ocimenone (61.7%), limonene (10.5%) and trans-carveol (5.0%). The essential oil consists mainly of oxygenated monoterpenes (73.1%), followed by monoterpene hydrocarbons (14.2%), sesquiterpene hydrocarbons (5.2%), phenyl derivatives (1.5%), and oxygenated sesquiterpenes (1.4%). This study revealed that the leaves of M. viridis produced cis-ocimenone chemotype form Western Ghats of North West Karnataka, India.