乳酸菌是一类有益于人类健康的重要微生物,它的菌体、无细胞提取物和胞外分泌物都有益生作用,其益生作用主要表现在清除自由基、抗脂质过氧化性、降低胆固醇含量、延缓机体老化和消除病变等方面。因而,含有乳酸菌的益生菌产品在饲料生产、食品和临床上都有着广泛的应用。 Lactobacillus is a kind of important microorganism beneficial to human health. Its bacterium, cell-free extract and extracellular secretions all have probiotics, and its probiotics are mainly in the functions of scavenging free radical, anti-lipid peroxidation and lowering cholesterol , Delay the body’s aging and eliminate lesions and so on. Thus, probiotic products containing lactic acid bacteria in feed production, food and clinical have a wide range of applications.