| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | – | – | – | – | – | – | – | – | – | – | |||
| B | – | – | – | – | – | – | – | – | – | – | |||
| C | – | – | – | – | – | – | – | – | – | – | |||
| D | – | – | – | – | – | – | – | – | – | – | |||
| E | – | – | – | – | – | – | – | – | – | – | |||
| F | – | – | – | – | – | – | – | – | – | – | |||
| G | – | – | – | – | – | – | – | – | – | – | |||
| H | – | – | – | – | – | – | – | – | – | – |
| E. coli growth | |
| + | : 20 - 50% inhibition |
| ++ | : 50 - 80% inhibition |
| +++ | : > 80% inhibition |