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Coliforms are cultured in a specialized growth broth. The culture broth contains proteins and a specialized buffer that guarantees the rapid growth of coliforms. It also contains an inhibitor to prevent the growth of other bacteria, especially Gram-positive bacteria. To detect coliforms, a chromogenic substrate is added to the medium that turns the growth medium blue-green when metabolized by coliforms. In addition the culture medium contains an E. coli specific fluorescent substrate that glows blue when exposed to UV light. The coliform test can be either qualitative (positive/negative) or quantitative. Cost per sample for quantitative $195.00 for qualitative $95.00 per sample. Best Uses
Consistency is key to quality environmental assessments. Breathe Green uses Assured Bio Labs who have strict adherence to culture quality control ensures every bacteria sample is incubated under the same environmental parameters and every agar plate has the same nutrient profile. Likewise, consistent culturing is mandatory when sampling a location repeatedly. If this week’s growth media or environmental parameters differ from last weeks, so will the results. Inconsistent results breed unreliable conclusions. Cost per sample $95.00. LEGIONELLA Testing: |
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