Research Article
Autochthonous Acid-Producing Bacteria from Catfish (Clarias sp.) with Antibacterial Activity against Selected Fish Pathogens: A Preliminary Study
Table 2
Antibacterial activity of isolated bacteria from catfish (Clarias sp.).
| | No | Isolate code | Diameter of inhibition zone (mm) | | Vibrio harveyi | Vibrio alginolyticus | Edwardsiella tarda | Aeromonas hydrophila | | Original | Neutralized | Original | Neutralized | Original | Neutralized | Original | Neutralized |
| | 1 | UBL1 | 19.1 ± 2.4 | 16.2 ± 4.9 | 18.4 ± 2.2 | 16.18 ± 1.98 | 6.3 ± 1.67 | 6.1 ± 1.1 | 17.8 ± 3.1 | 16.1 ± 2.2 | | 2 | UBL2 | | — | | — | 6.2 ± 0.3 | 6.2 ± 0.0 | | — | | 3 | UBL3 | | — | | — | 6.4 ± 0.1 | 6.1 ± 0.0 | | — | | 4 | UBL4 | | — | | — | 6.6 ± 1.1 | | | — | | 5 | UBL5 | | — | | — | 6.1 ± 0.1 | 6.1 ± 1.2 | | 7.21 ± 3.6 | | 6 | UBL6 | | — | | — | 6.5 ± 0.0 | | | — | | 7 | UBL7 | | — | | — | 6.5 ± 0.1 | 6.1 ± 0.2 | | — | | 8 | UBL8 | | — | | — | 6.1 ± 0.0 | 6.2 ± 0.2 | | 6.1 ± 2.3 | | 9 | UBL9 | | — | | — | 6.8 ± 04 | 6.5 ± 0.2 | | — |
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Original: crude extract without pH adjustment. Neutralized: sample with neutralization (pH 7.0 ± 0.2).
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