Table 5.
Number | 4 | 12 | 20 | 24 | 40 |
| |||||
Gram-negative | |||||
E coli | — | — | 5.690 × 10−8 | — | — |
P aeruginosa | 1.215 × 10−7 | — | — | — | — |
S typhi | — | 5.046 × 10−8 | — | — | — |
| |||||
Gram-positive | |||||
S aureus | — | — | — | — | 2.933 × 10−8 |
B subtilis | — | — | — | 7.648 × 10−8 | — |