Screening for potential new probiotic based on probiotic properties and α-glucosidase inhibitory activity

In this study, 11 lactic acid bacteria (LAB) strains were screened for potential new probiotics using in vitro methods, including acid and bile salt tolerance, adhesion, antioxidative and α-glucosidase inhibitory activity. The results indicated that Lactobacillus casei 2W and Lactobacillus rhamnosus Z7 showed better potential probiotic properties and α-glucosidase inhibitory activity in vitro. The characteristics of L. casei 2W were better than those of L. rhamnosus GG, and L. rhamnosus Z7 was the most similar strain to L. rhamnosus GG, which had an antidiabetic capability. This finding suggested that L. casei 2W and L. rhamnosus Z7 could be used as potential antidiabetic probiotics. Further research is required to examine the α-glucosidase inhibitory activity of these strains.