400 ml in Alpha bottle 500 ml, white screw cap.
Also known as: Dextrose tryptone agar
A medium for the enumeration of thermophilic spore bearers in foods, designed to detect the thermophilic bacteria causing 'flat sour' spoilage of canned foods.
Typical formula (g/l)*: Tryptone 10.0; Glucose 5.0; Bromocresol purple 0.04; Agar 12.0
Formula conform: NEN 6809
Interpretation: Thermophilic bacteria causing 'flat sour' spoilage produce yellow colonies with a yellow halo. Non acid producing colonies are grey to colourless
*Adjusted and/or supplemented as required to meet performance criteria