Agaricus bisporous (A. bisporous) is commonly known as button or table mushroom. It is an edible Basidiomycete fungus which grown naturally in Europe and North America. It is low in calorie with purine, carbohydrate and sodium content as well as a high content of several vitamins, potassium, phosphorus and some trace elements exist (Savoie et al., 2008). To date, most studies have been carried out on the therapeutic effects rather than antioxidant properties of white button mushroom. There is also low availability of Brazilian mushroom in the local hypermarkets. Moreover, consumption of mushrooms such as oyster, shiitake and enoki mushroom have been utilized for a long time in Malaysia compared to white button mushroom and Brazilian mushroom in the public.