Dried and ground leaves of different plants from Sardinia (Italy), such as Inula viscosa (L.) Aiton and Inula graveolens (L.) Desf., were used for supercritical extraction with carbon dioxide (CO 2 ) to isolate the corresponding extracts. The vegetable fragrances were isolated from the supercritical extract by means of a fractional separation technique. GC-MS analysis of the extracts allowed identification of the oil constituents. The process was carried out operating at 90 bar and 50°C in the extraction vessel, at 90 bar and below −5°C in the first separator to selectively precipitate the cuticular waxes, and at a pressure of 15-20 bar and temperatures in the range 15-21°C in the second vessel to recover the volatile oil. The hydrodistilled oils showed some important differences. Copyright