Peptones, yeast extract and dextrose provide nutrients for growth. Magnesium sulphate and potassium phosphate are the buffering agents. Diastase is a mixture of enzymes which hydrolyze starch. Bromocresol green is a pH indicator. The low pH inhibits the bacterial contamination. Agar is the solidifying agent.
Filter the sample through a sterile membrane and transfer the membrane on the agar surface. Then, cover the plate with the lid, turn it upside down and incubate at 30-35°C for 48 hours and up to 5 days in an aerobic atmosphere with increased humidity.
After incubation, colonies appearing on the filter surface can be counted. Mold colonies appear green and filamentous, whereas yeast colonies are green and opaque.
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20 plates 60 mm
4 sleeves, 5 plates each
10-25 °C storage temperature
180 days shelf life
See the full range of ready-to-use 60mm agar plates for water testing