Supercritical carbon dioxide extraction of essential oil:: The case of two Romanian Lamiaceae

Supercritical fluid extraction and a comparison of essential oil from some mint hybrids have been previously reported. This is one of our reasons to apply a modern method to a novel and interesting vegetable mater. This paper presepaper presents results of our study in supercritical fluid extraction from different new hybrids of the genus Mentha : Mentha M-A and Mentha M-E. The process parameters influence has been studied: pressure, temperature, flow of carbon dioxide through the bed of mint plants. Some caracteristics of the plant have been examined: particle size and also the cultivation conditions. The extracts were analyzed by gas capillary chromatography and the major components have been identified by the retention times comparison.