Table 1.
Antimicrobial spectrum of lactic acid bacteria isolated from Brazilian ovine cheese.
| Inhibition zone (mm) b | |||
|---|---|---|---|
| Indicator Strain a | LCN 17 | LCN 20 | LCN 43 |
| Bacillus cereus ATCC 9634 | 9.0 ± 0.5 | 5.0 ± 0.0 | 5.8 ± 0.3 |
| Bacillus subtilis (food isolate) | 6.8 ± 0.3 | 6.3 ± 0.3 | 7.3 ± 0.3 |
| Brevibacterium linens ATCC 9172 | 10.3 ± 0.3 | 5.5 ± 0.5 | 11.0 ± 0.5 |
| Clostridium perfringens type B | 5.8 ± 0.3 | 6.0 ± 0.0 | 6.8 ± 0.3 |
| Corynebacterium fimi NCTC 7547 | 10.0 ± 0.0 | 4.3 ± 0.3 | 9.3 ± 0.3 |
| Enterobacter aerogenes (food isolate) | 8.8 ± 0.3 | 6.0 ± 0.0 | 8.3 ± 0.3 |
| Enterococcus faecalis (food isolate) | - | – | – |
| Escherichia coli ATCC 25922 | 8.0 ± 0.0 | 8.3 ± 0.3 | 9.5 ± 0.5 |
| Lactobacillus acidophilus ATCC 4356 | 8.3 ± 0.3 | 5.8 ± 0.3 | 10.3 ± 0.3 |
| Leuconostoc mesenteroides | 4.3 ± 0.3 | 3.5 ± 0.5 | 4.5 ± 0.5 |
| Listeria innocua (food isolate) | 11.5 ± 0.5 | 8.3 ± 0.3 | 10.3 ± 0.3 |
| Listeria monocytogenes ATCC 7644 | 10.5 ± 0.5 | 6.5 ± 0.5 | 10.0 ± 0.0 |
| Listeria seeligeri AC 8214 | 9.3 ± 0.3 | 4.5 ± 0.5 | 10.5 ± 0.5 |
| Pseudomonas aeruginosa ATCC | – | - | – |
| Pseudomonas fluorescens (clinical isolate) | 8.3 ± 0.3 | 8.0 ± 0.0 | 8.3 ± 0.3 |
| Salmonella enteritidis ATCC 13076 | 9.3 ± 0.3 | 8.3 ± 0.3 | 8.3 ± 0.3 |
| Salmonella gallinarum (clinical isolate) | – | – | – |
| Staphylococcus aureus (food isolate) | 8.8 ± 0.3 | 8.3 ± 0.3 | 8.5 ± 0.5 |
| Staphylococcus aureus ATCC 25923 | 8.3 ± 0.3 | 8.0 ± 0.0 | 8.3 ± 0.3 |
| Staphylococcus haemolyticus (clinical isolate) | 10.5 ± 0.5 | 6.3 ± 0.3 | 11.5 ± 0.5 |
| Staphylococcus intermedius (clinical isolate) | 6.0 ± 0.5 | 8.0 ± 0.0 | 6.8 ± 0.3 |
| Streptococcus agalactiae (clinical isolate) | 6.5 ± 0.5 | – | 7.3 ± 0.3 |
| Streptococcus pneumoniae (clinical isolate) | 11.3 ± 0.3 | – | 12.3 ± 0.3 |
a
Indicator strains were grown on BHI agar plates for 24h;
b
zone of growth inhibition ≥ 8 mm was considered as positive, lack of inhibition zone as negative (-), and a weak inhibition when the diameter was 8 mm. Values are the means ± SE of three independent determinations.