To evaluate their behavior during the frying, the formulated oils were subjected to heating at constant temperature and without food. These oils were heated separately in an electric fryer (Ufesa,EEC) at 180◦C (±2◦C) for 6 h/day for 5 consecutive days.
At the end of each essay, 60 ml of oil is taken for physicochemical characterization and evaluation of the fatty acid composition. The samples were stored at 4◦C until analysis.