Characterization and Application of Enterocin RM6, a Bacteriocin from Enterococcus faecalis

Table 2

Antimicrobial spectrum of enterocin RM6.

Strains^a	Media^b	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.