Product number: HAL008
Harlequin® E. coli / Coliform Medium is used for the enumeration of Escherichia coli and coliforms in food and environmental samples.
Harlequin E. coli / Coliform Medium was developed to simultaneously enumerate E. coli and coliforms in food and environmental samples using a dual chromogenic substrate strategy. Tryptone Bile Agar is the base of the medium, which has been modified by the addition of two chromogenic substrates, one to detect the β-glucuronidase enzyme produced by E. coli and another to detect the β-galactosidase enzyme produced by coliforms.
|Bile Salts No.3||1.5 g|
|Grams per liter||36.6 g|
Final pH: 7.2 ± 0.2
- Weigh 36.6 grams of powder and disperse in 1 liter of deionized water.
- Allow to soak for 10 minutes, swirl to mix.
- Autoclave for 15 minutes at 121°C.
- Cool to 47°C and mix well.
- Dispense into Petri dishes.
|Product #||Product Description|
|HAL008A||Harlequin E. coli / Coliform Medium – 500 g|
Reference MaterialHAL008 - Harlequin E. coli/Coliform Medium, Material Safety Data Sheet [English]
HAL008 - Harlequin E. coli/Coliform Medium, Product Information Sheet [English]