Abstract:
The essential oils of leaves of Mentha pulegium, a traditional herbal medicine in Morocco, were extracted by
hydrodistillation and analysed by gas chromatography equipped with flame ionisation detector (GC-FID) and gas
chromatography coupled to mass spectrometry (GC–MS), to determine the chemical composition of the volatile fraction
and identify their chemotypes. Twenty eight constituents were identified. The essential oil yield and the percentage of
identified compounds were 1.66% and 97.34% respectively. The major component was piperitone (35.56%), other
predominant constituents were: piperitenone (21.18%), α-terpineol (10.89%), pulegone (6.452%), piperitone oxide
(4.02%), menthol (3.28%), menthone (3.09%), neomenthol (2.80%), menthofuran (2.15%), isomenthone (1.56%), carvone
(1.13%), geranyl acetate (1.06%), germacrene D (1.03%) and limonene (1.02%).
Keywords:
Mentha pulegium, essential oil, GC/MS, piperitone
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