| pH | Bacteria isolates | |||||||
|
| Chromobacterium sp. 1 Z1 | Amantichitinum ursilacus Z2 | Chromobacterium sp. Z3 | Bacillus licheniformis Z4 | Enterobacter sp. Z5 | Unidentified bacteria Z6 | Escherichia coli Z7 | Citrobacter sp. Z8 |
| 4 | 1.20 × 109 | 1.03 × 108 | 5.37 × 108 | 1.03 × 108 | 1.51 × 108 | 3.26 × 108 | 1.32 × 108 | 1.31 × 108 |
| 5 | 3.75 × 108 | 1.26 × 109 | 1.17 × 108 | 7.08 × 108 | 9.32 × 108 | 1.31 × 108 | 2.87 × 108 | 5.35 × 108 |
| 9 | 5.37 × 108 | 7.34 × 108 | 1.03 × 108 | 1.65 × 109 | 5.35 × 108 | 3.52 × 108 | 1.60 × 109 | 1.6 × 109 |
| 11 | 1.11 × 108 | 3.75 × 108 | 1.43 × 108 | 1.36 × 109 | 1.88 × 108 | 2.57 × 108 | 3.35 × 108 | 6.47 × 108 |