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Abstract

This study aims to evaluate the probiotic properties of Lactobacillus brevis (L. brevis) KU200019 and the synergistic activity with prebiotics on antimicrobial activity, and the potential application as an adjunct culture in fermented dairy products. The commercial strain, L. brevis ATCC 14869 was used as reference strain. L. brevis KU200019 was showed higher viability in simulated gastric (99.38±0.21%) and bile (115.10±0.13%) conditions compared to reference strain. L. brevis KU200019 exhibited antimicrobial activity against various foodborne pathogens. The supplementation of fructooligosaccharides (FOS) enhanced viability of lactic acid bacteria (>8 Log CFU/mL) and antioxidant activity [2,2-diphenyl-2-picrylhydrazyl radical assay (DPPH) assay, 31.23±1.14%; 2,2-azinobis (3-ethylbenzothiazoline-6-sulfonic acid (ABTS) assay, 38.82±1.46%] in fermented skim milk during refrigerated storage. L. brevis KU200019 was distinguished from the reference strain by its higher probiotic potential, antimicrobial activity, and higher antioxidant activity in fermented milk. Therefore, L. brevis KU200019 with FOS was demonstrated promising properties for further application in fermented dairy products with enhanced safety and quality.

Keywords: antimicrobial activity; antioxidant activity; dairy application; probiotics; synbiotic.

Research Insights

SupplementHealth OutcomeEffect TypeEffect Size
Lactobacillus brevisEnhanced Antimicrobial ActivityBeneficial
Large
Lactobacillus brevisIncreased Antioxidant ActivityBeneficial
Large
Lactobacillus brevisIncreased Lactic Acid Bacteria LevelsBeneficial
Large
Lactobacillus brevis KABP™-052Enhanced Antioxidant ActivityBeneficial
Moderate
Lactobacillus brevis KABP™-052Enhanced Gut Flora from Fermented MilkBeneficial
Large
Lactobacillus brevis KABP™-052Improved Antimicrobial Activity Against Foodborne PathogensBeneficial
Large
Lactobacillus brevis KABP™-052Increased Lactic Acid Bacteria LevelsBeneficial
Large
Lactobacillus brevis LB01Improved Antimicrobial Activity Against Foodborne PathogensBeneficial
Large
Lactobacillus brevis LB01Improved Antioxidant ActivityBeneficial
Moderate
Lactobacillus brevis LB01Improved Digestive ViabilityBeneficial
Large
Lactobacillus brevis LB01Improved Viability of Lactic Acid BacteriaBeneficial
Large
Lactobacillus brevis Lbr-35Enhanced Antimicrobial ActivityBeneficial
Large
Lactobacillus brevis Lbr-35Improved Antioxidant ActivityBeneficial
Moderate
Lactobacillus brevis Lbr-35Improved Viability of Lactic Acid BacteriaBeneficial
Large
Lactobacillus brevis Lbr-35Increased Probiotic PotentialBeneficial
Large
Lactobacillus brevis VPro 18Enhanced Gastric ViabilityBeneficial
Large
Lactobacillus brevis VPro 18Enhanced Viability in Bile ConditionsBeneficial
Large
Lactobacillus brevis VPro 18Improved Antimicrobial Activity Against Foodborne PathogensBeneficial
Large
Lactobacillus brevis VPro 18Improved Viability of Lactic Acid BacteriaBeneficial
Large
Lactobacillus brevis VPro 18Increased Antioxidant ActivityBeneficial
Large
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