Abstract
ABSTRACT Lactic acid bacteria (LAB) have gained much attention recently due to their probiotic attributes with anti-ACE and anti-glycation potentials targeting management of diabetes. This study was designed to isolate LAB from human milk and to evaluate their potential for inhibitory activities on ACE and AGEs formation using in vitro assay models. Among 12 LAB isolates, many strains exhibited strong probiotic attributes including tolerance to low pH, high salt, gastric, and intestinal juices with higher cell adhesion. Further, cell-free extracts of LAB tested for in vitro anti-ACE and anti-AGEs activities evidenced Lacticaseibacillus casei MKU1, Lacticaseibacillus paracasei MKU2, Lactiplantibacillus pentosus MKU3, L. paracasei MKU7, L. delbrueckii GERU3 and Lactobacillus delbrueckii MKU10 as strong ACE and AGEs inhibitors. Subsequently, Principal Component Analysis showed a positive correlation with anti-ACE (p ≤ .01) and anti-glycation (p ≤ .05) activity of LAB. Overall, this study suggests that six Lactobacillus isolates of human milk with superior probiotic attributes looks promising as potential probiotic strains.
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