Constituents of the essential oil of metha microphylla C Koch

ABSTRACT

Analysis of the essential oil of Mentha microphylla Koch. has been carried out by capillary gas chromatography mass spectrometry. Twenty- five compounds were identified. The main constituents are piperitone oxide and piperitenone oxide accounting for more than 65% of the oil and their relative concentration seems to be dependent on the maturity of the plants. Other major compounds are 3-octanol, limonene B- caryophyllene and B-cubebene