Table 6.
Morphological and biochemical characteristics of E. coli
| S. No | Tests performed | Results |
|---|---|---|
| 1 |
Shape |
Rods |
| 2 |
Gram staining |
Gram negative |
| 3 |
Motility |
Motile |
| 4 |
Gelatin utilization test |
Negative |
| 5 |
Citrate utilization test |
Positive |
| 6 |
Methyl red |
Negative |
| 7 |
Voges proskeur test |
Positive |
| 8 |
Acid from glucose |
Positive |
| 9 |
Gas from glucose |
Negative |
| 10 |
Triple sugar Iron test |
Acid was produced |
| 11 |
Urease test |
Positive |
| 12 | Indole production | Negative |
Values in parenthesis indicate the drug concentration in mcg/disc.