A medium for the detection of indole production in the presence of tryptophan. The formulation complies with the specification of ISO 7251 (BS 5763-8) Microbiological examination of food and animal feedingstuffs – Enumeration of presumptive Escherichia coli. Most probable number technique.
- Storage temperature: 2 to 25°C
- Appearance: clear, colourless liquid
- Recommended incubation: 37/44°C
- pH: 7.5 ±0.2
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