Whey is a by-product of the cheese industry, which represents about 85–95% of the milk volume and contains nutrients, such as lactose, soluble proteins, lipids, minerals, vitamins, and organic acids. The disposal of cheese whey is a continuing and growing issue in the dairy industry. Cheese production, in particular, can cause significant environmental problems if it is not utilized or treated before disposal. Due to the high carbohydrate content of whey, it has been utilized for production of value added products, especially by fermentation