Table 4 Inhibition zone diameters (mm) produced by 20 mg of tested polymers (V-X) against different bacteria which were maintained on nutrient agar after 24 h and fungi which were kept on Sabouroud's agar slopes after 72 h by the Cut Plug Method on nutrient agar at 30°C
Tested microorganism | Inhibition zone diameter (mm) | |||||||
|---|---|---|---|---|---|---|---|---|
Control | Biocidal polymers | |||||||
III | IV | V | VI | VII | VIII | IX | X | |
Escherichia coli | 10 | 8 | 14 | 19 | 25 | 30 | 23 | 28 |
Pseudomonas aeruginosa | 8 | 8 | 15 | 23 | 28 | 30 | 24 | 32 |
Salmonella typhi | 9 | 9 | 16 | 19 | 28 | 32 | 23 | 32 |
Staphylococcus aureus | 8 | 10 | 16 | 21 | 27 | 29 | 25 | 30 |
Aspergillus niger | 9 | 10 | 18 | 20 | 26 | 30 | 22 | 28 |
Aspergillus flavus | 9 | 8 | 15 | 20 | 27 | 31 | 22 | 29 |
Candida albicans | 10 | 9 | 17 | 19 | 25 | 28 | 22 | 27 |
Cryptpcoccus neoformans | 10 | 9 | 17 | 19 | 25 | 29 | 24 | 27 |