BIOCHEMICAL TESTS:
The smaller colonies:
Biochemical tests were performed using the Rapid NFT strip (BioMe'rieux Vitek, Inc. Missouri, USA) on the organisms from the smaller colony. The results were:
| TESTS PERFORMED | REACTION TESTED | RESULTS | |
| NO3 | Reduction of nitrates to nitrites | POSITIVE | |
| TRP | Indole production | POSITIVE | |
| GLU | Acidi production from Glucose | POSITIVE | |
| ADH | Arginine hydrolysis | NEGATIVE | |
| URE | Urease | NEGATIVE | |
| ESC | Hydrolysis (b-glucosidase) | NEGATIVE | |
| GEL | Hydrolysis (protease) | NEGATIVE | |
| PNPG | b-galactosidase | NEGATIVE | |
| GLU | Assimilation | NEGATIVE | |
| ARA | Assimilation | NEGATIVE | |
| MNE | Assimilation | NEGATIVE | |
| MAN | Assimilation | NEGATIVE | |
| NAG | Assimilation | NEGATIVE | |
| MAL | Assimilation | NEGATIVE | |
| GNT | Assimilation | NEGATIVE | |
| CAP | Assimilation | NEGATIVE | |
| ADI | Assimilation | NEGATIVE | |
| MLT | Assimilation | NEGATIVE | |
| CIT | Assimilation | NEGATIVE | |
| PAC | Assimilation | NEGATIVE |
The other tests performed on the smaller colonies included the triple sugar iron agar test (A/K), the oxidase test, catalase test, ornithine decarboxylase test and the indole test which were all positive. The urease test however was negative.
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