Several studies have recommended the use of rosemary extract as an alternative antioxidant compound . Che-Man and Jaswir(2000) reported that rosemary extract has important antioxidant characteristics and a good thermal stability. In a previous study conducted by Ramalho and Jorge (2008), rosemary extract was found to have a positive effect on the oxidative stability of soybean oil during heating. In addition to its antioxidant properties, rosemary also has shown to have a synergistic effect with some synthetic antioxidants, such as citric acid or BHA