Fig. 2 shows the kinetic curves at 25 ◦C for the extractions with anhydrous ethanol (EtOH), and its mixtures with 5% biodiesel (95% anhydrous ethanol + 5% biodiesel, mass basis, named EtOH5%) and 10% biodiesel (90% anhydrous ethanol + 10% biodiesel, mass basis, named EtOH10%). The extraction capability of the three solvents is very similar up to 15 min of extraction. After this time, the solubility of oil in ethanol is increased using EtOH10%, followed by EtOH5% and finally EtOH, which were able to extract about 19.9%, 17.1% and 15.1% of oil from the soybeans.