Table 4.
Inhibition of Gram-negative strains on PET/Active Zeo 810.
| Gram-Negative Strain | Campylobacter jejuni—ATCC 33291 | Salmonella spp. enterica |
|---|---|---|
| typhimurium—ATCC | ||
| 14028 | ||
| Sample size | 50 × 50 (mm × mm) | 50 × 50 (mm × mm) |
| Sample thickness | 1.0 mm | 1.0 mm |
| Inoculum volume | 0.4 mL | 0.4 mL |
| Uo: number of bacteria available in the inoculum | 300 000 | 120 000 |
| Ut: bacteria count recovered from non-treated samples 24 h after inoculation | 3.8 (Log) | 4.3 (Log) |
| At: bacteria count recovered from samples treated 24 h after inoculation | ≤0.4 (Log) | 1.6 (Log) |
| Antibacterial activity (R) | >3.8 | 2.6 |
| R = (Ut − Uo) − (At − Uo) | ||
| ISO 22196:2011 |