Comparison of Chemical Composition of Essential Oils from Aerial Parts of Mentha Pipreta L. Using Hydrodistillation, Microwave-Assisted Hydrodistillation and Solvent Free Microwave Extraction

In this present work, chemical composition of essential oils of Mentha pipreta L. cultivated grown in region Ait district Jalaun of Uttar Pradesh province (in north india) were resolute by capillary gas chromatography (GC), gas chromatography and mass spectrometry (GC/MS). contented and composition of the Mentha pipreta L. obtained by hydrodistillation (HD), microwave assisted hydrodistillation (MAHD) and solvent free microwave extraction (SFME) were compared. The major components in three methods were the same but the relative amounts of the individual components have wide-ranging. The major components were found in HD, MAHD and SFME, α –Pinene (1.4%,1.5%,1.4%), β-Pinene (2.3%,2.5%,2.4%%), 1, 8 Cineole (7.2%,8.2%,7.1%), Menthyl acetate (6.54%,6.8%,6.25%), Menthol (39%,32%,30%), Germacrene D (1.2%,1.4%,1.1%) and α- Humulene (4.6 %, 4.7%, 4.6 %) respectively. This is the first report evaluatethe chemical composition and comparison of three methods for the extraction (essential oil) compounds of this species.