Table 2. Survival population (log CFU/ mL) of Staph. aureus and Salm. Typhimurium treated with ZEO and SNP alone and in combination during 15 min contact time at room temperature.
| Microorganism* | Alone at MIC concentration | In combination | |||
| ZEO | SNP | OIC | 1/2OIC | 1/4OIC | |
| Staph. aureus | 0 | 3.11 × 105± 0.08a | 0 | 3.11 × 105± 0.67a | 4.74 × 105± 0.41a |
| Salm. Typhimurium | 0 | 4.69 × 105± 0.19b | 0 | 3.90 × 105± 0.21b | 5.30 × 105± 0.33b |
*Initial bacterial counts: 106 CFU mL-1. Different letters for each column of indicate a statistically significant difference (P < 0.05).