Test organism | Mean bacterial counts (CFU/ml) at 10−6 dilutiona | Test suspensiona (log CFU/ml) | Log reduction in bacterial countsa | |||||
Suspension for validation | Experimental conditions | Neutralizing solution | +Neutralized test product | 80% (v/v) | 40% (v/v) | 1% (v/v) | ||
S. aureus CIP 4.83 Assay 1 Assay 2 |
57 97 |
71 106 |
64 106 |
74 115 |
7.23 7.52 |
>5.09 >5.38 |
>5.09 >5.38 |
<2.71 <3.00 |
P. aeruginosa CIP 103467 Assay 1 Assay 2 |
45 121 |
46 107 |
50 112 |
43 101 |
7.21 7.58 |
>5.06 >5.43 |
>5.06 >5.43 |
<2.69 3.24 |
E. coli CIP 54117 Assay 1 Assay 2 |
61 104 |
69 94 |
58 89 |
65 85 |
7.31 7.55 |
>5.16 >5.40 |
>5.16 >5.40 |
>5.16 4.49 |
E. hirae CIP 58.55 Assay 1 Assay 2 |
88 52 |
84 50 |
91 65 |
90 48 |
7.46 7.27 |
>5.32 >5.13 |
>5.32 >5.13 |
<2.95 <2.76 |