THE EFFECT OF ULTRASOUND ON THE ANTIOXIDANT PROPERTIES, PHENOLIC COMPOUNDS AND SOLUBLE VITAMINS IN SUNFLOWER OIL

Abstract

The current study intended to increase sunflower oil extraction by subjecting the oil to an ultrasonic device at a frequency of 20 Hz for varied times (0, 5, 10, 15) minutes and then extracting the oil with hexane. The total phenolic compounds were investigated, and there was a considerable rise in the phenolic compounds of sunflower oil, with the maximum percentage being (30.56 mg/mm at time (10) and the lowest being 22.32 (mg/mm) at time (0.) The antioxidant properties were also studied, with the highest percentage being (41.2, 49.8, 69.7, 84.5, 94.5%) at time (15) ( 20. 6, 30.5, 44.5, 55.4, 73.5%) for each of the concentrations (30, 60, 120, 250, (ppm500) respectively, and the lowest percentage at time (0) for each of the concentrations (30, 60, 120, 250, 500 ppm) respectively. The soluble vitamins in the oil were studied, and the highest concentration was found (49.57%) at the time (10) and the lowest concentration was found (39.28%) at the time (0).