Microorganism | Time (h) | Batch | Number of cfu recovered per sample * | Reduction (%) ** | |
---|---|---|---|---|---|
Controls | Copper ArmourTm | ||||
S. aureus Inoculum: 2.0 × 107–5.0 × 107 | 2 | 1 2 | 3.8 × 105; 3.1 × 105; 3.9 × 105 4.0 × 105; 4.1 × 105; 3.2 × 105 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 |
6 | 1 2 | 1.8 × 106; 1.8 × 106; 2.0 × 106 1.1 × 106; 1.5 × 106; 1.2 × 106 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 | |
12 | 1 2 | 4.4 × 106; 4.5 × 106; 4.5 × 106 3.9 × 106; 4.4 × 106; 4.0 × 106 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 | |
18 | 1 2 | 6.6 × 106; 5.9 × 106; 6.1 × 106 7.9 × 106; 6.4 × 106; 6.8 × 106 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 | |
24 | 1 2 | 2.0 × 107; 1.0 × 107; 1.3 × 107 1.0 × 107; 9.4 × 106; 9.9 × 106 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 | |
P. aeruginosa Inoculum: 1.6 × 108–1.8 × 108 | 2 | 1 2 | 7.4 × 106; 7.4 × 106; 7.2 × 106 6.2 × 106; 6.8 × 106; 6.5 × 106 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 |
6 | 1 2 | 7.6 × 106; 7.8 × 106; 7.6 × 106 8.2 × 106; 7.8 × 106; 7.9 × 106 | 5800; < 1; 2000 < 1;< 1;< 1 | > 99.9 | |
12 | 1 2 | 1.6 × 107; 1.4 × 107; 1.3 × 107 1.0 × 107; 1.1 × 107; 2.0 × 107 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 | |
18 | 1 2 | 4.8 × 107; 4.8 × 107; 4.3 × 107 5.0 × 107; 5.2 × 107; 4.9 × 107 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 | |
24 | 1 2 | 1.1 × 108; 1.0 × 108; 9.6 × 107 1.3 × 108; 2.0 × 108; 1.9 × 108 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 | |
E. coli O157:H7 Inoculum: 2.0 × 107–4.0 × 107 | 2 | 1 2 | 2.8 × 105; 3.1 × 105; 3.0 × 105 3.5 × 105; 3.5 × 105; 3.3 × 105 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 |
6 | 1 2 | 1.6 × 106; 1.7 × 106; 1.6 × 106 2.2 × 106; 1.9 × 106; 2.0 × 106 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 | |
12 | 1 2 | 4.6 × 106; 4.6 × 106; 4.5 × 106 4.2 × 106; 4.9 × 106; 4.3 × 106 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 | |
18 | 1 2 | 9.8 × 106; 1.1 × 107; 9.5 × 106 1.2 × 107; 1.0 × 107; 1.0 × 107 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 | |
24 | 1 2 | 3.2 × 107; 3.0 × 107; 2.9 × 107 3.9 × 107; 4.1 × 107; 4.0 × 107 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 | |
L. monocytogenes Inoculum: 1.0 × 107–5.0 × 107 | 2 | 1 2 | 1,6 × 107; 2,1 × 107; 2,2 × 107 1,5 × 107; 1,4 × 107; 2,1 × 107 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 |
6 | 1 2 | 3,0 × 107; 4,1 × 107; 4,3 × 107 3,6 × 107; 3,7 × 107; 2,7 × 107 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 | |
12 | 1 2 | 4,8 × 107; 5,1 × 107; 6,0 × 107 4,7 × 107; 4,7 × 107; 4,1 × 107 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 | |
18 | 1 2 | 9,8 × 107; 9,1 × 107; 9,8 × 107 9,2 × 107; 9,4 × 107; 9,0 × 107 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 | |
24 | 1 2 | 2,2 × 108; 2,0 × 108; 2,1 × 108 1,9 × 108; 1,2 × 108; 1,2 × 108 | < 1;< 1;< 1 < 1;< 1;< 1 | > 99.9 |