The word anti-oxidant is used in a general sense to refer to any type of chemical agent which inhibits attack by oxygen or ozone (Scott, 1965). As applied to vegetable oils, anti-oxidants are compounds which interrupt the oxidation process by preferentially reacting with the fat radical to form a stable radical which does not quickly react with oxygen (Eastman Chemical Company, 2007). When the reference is to food uses, they are grouped as a food additive which has the effect of increasing the shelf life of foods by protecting them against deterioration caused by oxidation which leads to rancidity and color changes (FSANZ, 2006). Antioxidants function either by inhibiting the formation of free alkyl radicals in the initiation step or by interrupting the propagation of the free radical chain (Ohio State University, 2008). In truncating the propagation step, the antioxidants function as hydrogen donors