| Isolates | catalase | amylase | Triple sugars | Citrate | IAA | NH3 |
| IS1 | − | − | − | + | + | + |
| IS2 | − | ± | − | + | ± | + |
| IS3 | − | − | + | + | + | + |
| IS4 | − | + | + | + | ± | + |
| IS5 | − | − | + | + | + | + |
| IS6 | − | − | − | − | ± | + |