Antioxidants play an important role in maintaining human health due to their ability to scavenge free radicals in the bodies. Fortunately, human body is designed to have its own defence system such as superoxide dismutase enzyme, glutathione enzyme and catalase to fight harmful substances and prevent cell damages (Halliwell, 1996). However, the consumption of supplemented antioxidants present in our diets such as in fruits, vegetables and mushrooms is very important to offer adequate security.