A total of 100 samples were randomly collected from yogurt and colostrumand 125 lactic acid bacteria were isolated. Of these, 17 Lactobacillus strainsbelonging to five species ( L. delbrueckii, L. plantarum, L. rhamnosus, L. paraca-sei, and L. casei) were identified. L. plantarum 17C and 13C, which isolatedfrom colostrums