Table 2. Inhibitory spectrum of crude bacteriocin from JNU533 against Gram-positive and Gram-negative bacteria

Bacteria Strain Medium Incubation temp (°C) Inhibition AU/mL1)
Levilactobacillus brevis BMB5 MRS 37 + 200
BMB6 MRS 37 + 200
OB1 MRS 37 + 200
OB3 MRS 37 + 200
OB4 MRS 37 + 200
Lactobacillus acidophilus GP1B MRS 37 + 200
Lactiplantibacillus plantarum L67 MRS 37 + 200
OY1 MRS 37 + 200
OY2 MRS 37 + 200
Limosilactobacillus fermentum MRS 37 + 200
Streptococcus thermophilus M17 42 + 400
Streptococcus mutans M17 37 + 200
Lactobacillus delbrueckii subsp. lactis ATCC4797 MRS 37 + 200
Porphyromonas gingivalis TSB 37
Listeria monocytogenes TSB 37
Staphylococcus aureus TSB 37
Escherichia coli LB 37
Salmonella Typhimurium TSB 37
Activity units (AU) were measured with the highest two-fold dilution that showed a clear inhibitory zone on the MRS hard-soft agar plate. +, inhibition observed; –, no inhibition observed.
MRS, deMan, Rogosa, and Sharpe.