In the bottled water industry, rapid and accurate microbiological testing is essential for protecting public health and maintaining brand trust. Bio-Rad’s RAPID’P.aeruginosa chromogenic medium, certified NF VALIDATION, offers direct detection of Pseudomonas aeruginosa in 22 hours, without the need for additional confirmation steps.
Speed and specificity in one test, optimized for water challenges
Traditionally, laboratories have relied on methods such as CN agar under the NF EN ISO 16266 standard, which require multiple days and confirmation tests before results are ready. RAPID’P.aeruginosa changes that by targeting an enzymatic activity unique to P. aeruginosa, producing distinct blue to blue-green colonies for quick, confident identification - even in the presence of abundant background flora.
Specially formulated for challenging water samples such as bottled water, well water, lakes, and streams, the medium selectively inhibits most interfering microorganisms, including other Pseudomonas, whose colonies appear transparent or yellow.
With NF VALIDATION certification, the method is recognized as a reliable alternative to the ISO standard, delivering results that are both accurate and reproducible.
Key benefits include:
- Complete results in 22–30 hours
- High specificity and reduced false positives
- No need for confirmation testing
- Strong colony color contrast for rapid interpretation
A Step Forward for Bottled Water Quality Control
The advantages are clear: faster turnaround times, reduced labor, and dependable results that support compliance with stringent microbiological standards.
*Go to nf-validation.afnor.org/en/water-analysis/ for alternative analytical methods for water.
