oleic acid (C18:1) and an increase in linoleic acid (C18:2). All other fatty acids remained unaffected after irradiation. Gölge and Ova (2008) reported that the effect of irradiation doses up to 5 kGy on palmitic, stearic, oleic, and linoleic acids was statistically insignificant (p > 0.05) for pin nuts. According to the literature, irradiation of high moisture content foods results in high hydroxyl radical concentrations, which trigger fat oxidation, leading to changes in fatty acid composition foodstuff. Such reactions are expected to be slower in dry foodstuff, such as nuts (Brito, Villavicencio, & Mancini-Filho, 2002; Sant’ Ana and Mancini-Filho, 2000).