Triphenyltetrazolium Chloride (TTC) has been added as an indicator to various media, and recommended by several workers as being helpful in the early recognition and identification of a variety of bacteria including Escherichia coli, Vibrio parahaemolyticus and enterococci. This particular formulation is based on a tryptone soya agar with added sucrose and is particularly useful when performing counts on food and food product samples. Many of the enterobacteriaceae and enterococci will reduce the TTC to a formazan which colours the colonies deep red making them easier to distinguish and identify. The presence of the sucrose can also assist in the differentiation of sucrose fermenting and non-fermenting strains.
- Storage temperature: 2 to 8°C
- Appearance: firm gel
- Colour: straw
- Recommended incubation: aerobically at 37°C for 16 to 24 hours
- pH: 6.9 ± 0.2
- Plate size: 90mm
Ce produit répond aux critères suivants pour être admissible aux récompenses suivantes :