Supercritical CO2 extraction of compounds from different aerial parts of Senecio brasiliensis: Mathematical modeling and effects of parameters on extract quality

Senecio brasiliensis aerial parts extracts were obtained using supercritical carbon dioxide (SC-CO2) extraction. The objective was to evaluate the effects of temperature and pressure on the yield, extraction kinetics, and chemical composition. The extractions with SC-CO2 were performed at 15, 20 and 25 MPa, and 40, 50 and 60 °C. Soxhlet method was used as a comparative method to SC-CO2 and the compounds were analyzed by gas chromatography-mass...