Lactic Acid bacteria is found in the curd. These bacteria convert lactose sugar into lactic acid thereby promoting the formation of milk into curd. Lactic acid bacteria (LAB) have historically been used as starter cultures for the production of fermented foods, especially dairy products. Lactic acid bacteria (LAB) are widely used in many fields of human activity and especially in food preservation and in medicine. They are used for the synthesis of many heteropolysaccharides and homopolysaccharides.