A diverse group of safe, non-pathogenic; gram positive bacteria produce lactic acid as the metabolic end product designated as "lactic acid bacteria" and are traditionally used in the food industry which is capable of providing health benefits to both humans and animals. Nowadays, lactic acid bacteria got great interest exists in the commercial, consumer, and research communities. The human gut lactic acid bacteria play a crucial role in the health and nutritional side of the host like controlling the entry or invasion of the pathogenic microorganisms into the human body by acting as a barrier, improves the nutritional value of the fermented foods, improvement of lactose intolerance, inhibitory action