Table 3 Biochemical characteristics of isolated bacterial strains.
S. no. | Biochemical tests | E. coli | P. aeruginosa | K. pneumoniae |
|---|---|---|---|---|
1 | Gram staining | Gram-negative rod | Gram-negative rod | Gram-negative |
2 | Oxidase | Negative | Positive | Negative |
3 | Catalase | Positive | Positive | Positive |
4 | Glucose fermentation | Positive | Negative | Positive |
5 | Lactose fermentation | Positive | Negative | Positive |
6 | \(\hbox {H}_2\)S production | Negative | Negative | Negative |
7 | Citrate | Negative | Positive | Positive |
8 | Urease | Negative | Negative | Positive |
