Table 2.
Antimicrobial spectrum of enterocin RM6.
| Strainsa | Mediab | Diameter of inhibitory zone (mm) |
|---|---|---|
| Gram-positive bacteria | ||
| Pediococcus acidilactici PO2 | MRS | 17.5 |
| Pediococcus pentosaceus | MRS | 16.8 |
| Lactobacillus plantarum ATCC 8014 | MRS | 11.4 |
| Lactobacillus casei ATCC 7469 | MRS | 13.4 |
| Lactobacillus acidophilus ATCC 19992 | MRS | 10.0 |
| Pediococcus cerevisiae | MRS | 11.1 |
| Lactobacillus cellobiosus OSU 919 | MRS | 14.8 |
| Listeria innocua ATCC33090 | TSBYE | 7.4 |
| Enterococcus faecalis ATCC 29212 | MRS | 8.4 |
| Listeria monocytogenes Scott A | TSBYE | 11.3 |
| Bacillus cereus ATCC 14579 | TSBYE | 11.2 |
| Bacillus cereus ATCC 11778 | TSBYE | 5.8 |
| Staphylococcus aureus OSU 6538 | NB | 6.1 |
|
Staphylococcus aureus
(methicillin sensitive) |
NB | 12.4 |
|
Staphylococcus aureus
(methicillin resistant) |
NA | 10.0 |
| Gram-negative bacteria | ||
| Yesinia enterocolitica | TSBYE | — |
| Salmonella Typhimurium | LB | — |
| Escherichia coli O157:H7 | LB | — |
aStrains obtained from the culture collection of The Ohio State University food safety laboratory. bMRS: lactobacillus MRS broth; TSBYE: tryptic soy broth supplemented with 0.6% yeast extract; NB: nutrient broth; LB: Luria-Bertani medium.