Probiotic Potential of Lactic Acid Bacterial Strains Isolated from Human Oral Microbiome

Lactic acid bacteria are widely studied microorganisms and one of the prevalent groups in oral cavity microbiome. This work aimed to isolate new lactic bacterial strains from human evaluate their characteristics probiotic potential. Twelve were isolated identified as belonging several genera family Lactobacillaceae. Screening for antimicrobial activity was held, where two showed antagonistic against Streptococcus mutans most expressed inhibition Escherichia coli, Bacillus subtilis, cereus. The ability autoaggregate bind mucin assessed, showing autoaggregative properties binding at 5 logs CFU/mL. survival simulated gastrointestinal conditions growth dynamics with different stress factors studied. Most a good potential presence factors. All tested exhibited high rates environment, thus having colonizing beneficial be applied. These results basis continuing research into these so they can included functional products health.