Food&Water Q.C.



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Packaging / Colonies appearance

Presence/Absence of E. coli and coliforms
in 100 mL water samples.

Liquid Technique

Typical Appearance of microrganisms

E. coli → Green to Blue Green 
Other coliforms → Yellow 

Order References 

Please use these references when
contacting your local distributor:

100*100 mL doses .......... AQ056

To download the certificate of analysis, please indicate your lot number below :


Medium Performance

  1. Simple method !
    Add the pre-weighed dose of AquaCHROMTM ECC to a 100 mL water sample, shake and incubate at 37 °C for 18-24 h.

  2. Detection by naked eye: No need of UV lamp!
    Species differenciation is based on the use of two chromogens (instead of obsolete use of chromogene + fluorogene). 

  3. Very Suitable also for field tests:
    This culture medium has been also designed for tests in areas where neither incubators nor UV lamps are available. The incubation could be carried out at room temperature (longer incubation) and results are read under daylight. Simple method!

Medium Description

Please refer to our IFU and Material Safety data sheet for complete information about the medium.
CHROMagar™, Rambach™, AquaCHROM™ are trademarks created by Dr. A. Rambach.

All pictures of our products are CHROMagar property and should not be used without our acceptance.
Last update: 26 November, 2018

Focus on E. coli and coliforms

Coliforms, Enterobacteriacae able to ferment lactose, are bacteria present in human and warm blooded animals intestinal flora, in the soil and water. Coliforms are indicators of organic, environmental or faecal contamination.

Strict regulations exist for E. coli/coliform absence in water and food samples. This can be explained by the importance of these germs in determining water and food safety.
Worldwide, water and food quality control for human consumption are based on detecting the presence/absence of E. coli and coliforms.

E. coli and coliforms Epidemiologic Issues

E. coli can contaminate drinking water when the water treatment system is inadequate or during periods of very high rainfalls.
Monitoring of food and water production is essential. Contamination may lead to suspension of the water supply and food recall by supermarkets.


Evaluation Of AquaCHROM ECC, A New Chromogenic Culture Broth For The Detection Of E.coli And Other Coliforms


2013 A.Lerner(1), J.Coral(1), L-C. CHAI(2) (1)CHROMagar, Paris, FRANCE (2)Faculty of Sci.- Univ. of Malaya, Kuala Lumpur, MALAYSIA

Evaluation of AquaCHROM ECC, a chromogenic culture broth for the detection of Escherichia coli and other coliforms


CHROMagar Laboratory Paris, 2020
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