Frying process (ntioxi Three different concentrations of basil essential oil ppm) dant)/PO were tested experiment (0, 200, and 500 fryer The frying process was held using a 3 L domestic electric (model ODF550, Oster, Boca Fl., U.S.A.). The frying pro- cess of each antioxidant/PO concentration consisted in 5 frying cycles; 1 cycle consisted in frying 80 batches of 80 g of French fries in 2.9 L of the frying media at 180 oC uring 2 min, and then draining in the basket during 1 min. Before starting each frying cycle, the level of the oil was revised and the necessary amount of fresh oil was added to keep a constant level of 2.9 L. This oil replenishment was conducted in order to simulate the common practices developed in fast food establishments.