| Isolate No. | Gram’s stain & Shape | Carbohydrate Fermentation | H²S Production | NO³ Reduction | Indole Production | MR Reaction | VP Reaction | Citrate Use | Urease Activity | Catalase Activity | Oxidase Activity | Gelatin Liquefaction | Microorganisms | ||
| Lactose | Dextrose | Sucrose | |||||||||||||
| 1 (A) | Rod − | AG | AG | − | − | + | + | + | − | − | − | + | − | − | Escherichia coli |
| 1 (B) | Rod − | AG | AG | AG | − | + | − | + | + | + | + | + | − | − | Klebsiella spp. |
| 2 (A) | Rod − | − | AG | A | + | + | − | + | − | + | − | + | − | − | Salmonella spp. |
| 2 (B) | Rod − | AG | AG | A | − | + | + | + | − | − | − | + | − | − | Escherichia coli |
| 2 (C) | Rod − | AG | AG | AG | − | + | − | + | + | + | + | + | − | − | Klebsiella spp. |
| 2 (D) | Rod − | AG | AG | AG | − | + | − | + | + | + | + | + | − | − | Klebsiella spp. |
| 2 (E) | Rod − | − | A | A | − | + | − | + | − | − | − | + | − | − | Shigella spp. |
| 3 (A) | Rod − | − | AG | A | + | + | − | + | − | + | − | + | − | − | Salmonella spp. |