المساهمة في الدراسة الإحصائية للزيت الأساسي والمحتوى الكيميائي لنبات النعناع

Abstract

The main purpose of the study was to investigate and compare the chemichal changes of different essential oils of mint: The genus Mentha and Spicata from various previous studies, this plant is widely spread here in Algeria. It belongs to the Lamiaceae, and it characterized by many therapeutic properties: antiseptic, anti￾nervous, analgesic). The volatile oils of Mentha spicata were extracted in all regions by hydrodistillation, and different values of yield ranging from 0.87% to 3% were recorded. The chemical analysis of these essential oils was carried out by the coupled gas chromatography with mass spectrometry CPG / MS , where the predominant compounds in all regions were Carvone(48.5-71.02%) and Limonene(5.85-20.7%), which recorded the highest rates compared to other essential oils, but differed quantitatively from the region to another.