1. Probiotic action: Nisin is a probiotic, which can promote intestinal health. When nisin is added to juice drinks, it can grow and reproduce in the digestive tract, which helps to maintain the balance of intestinal flora, increase the number of beneficial bacteria, inhibit the growth of harmful bacteria and improve intestinal function.

2. Enhance immunity: the intestine is a part of the human immune system, and a good balance of intestinal flora is very important for the normal function of the immune system. Nisin can regulate the activity of immune system, enhance immunity and improve the body's resistance to diseases and infections.