Research Article

Fluorescence-Based Rapid Detection of Microbiological Contaminants in Water Samples

Table 2

Accuracy results obtained with Candida albicans: comparison between fluorescence and viability results obtained with the Milliflex Quantum method and compendial method results ( š‘› = 1 0 ).

MicroorganismIncubation timeTarget concentration (CFU)Fluorescence count mean Ā± SD (CFU)Fluorescence recovery Ā± SD (%)Studentā€™s two samples š‘” -test š‘ƒ value on fluorescence countsViability count mean Ā± SD (CFU)Viability recovery Ā± SD (%)Studentā€™s two samples š‘” -test š‘ƒ value on viability counts

0 0 . 0 Ā± 0 . 0 NANA 0 . 0 Ā± 0 . 0 NANA
5 6 . 2 Ā± 2 . 9 1 0 2 Ā± 6 1 0.93 6 . 2 Ā± 2 . 9 1 0 2 Ā± 6 0 0.93
Candida albicans
ATCC 10231
22ā€‰h25 2 4 . 9 Ā± 5 . 4 1 0 1 Ā± 2 9 0.93 2 4 . 2 Ā± 5 . 6 9 8 Ā± 3 0 0.83
50 6 2 . 7 Ā± 1 0 . 4 9 8 Ā± 2 2 0.73 6 2 . 2 Ā± 1 0 . 1 9 7 Ā± 2 1 0.64
75 1 0 2 . 0 Ā± 6 . 3 1 0 1 Ā± 1 0 0.68 1 0 1 . 4 Ā± 5 . 5 1 0 1 Ā± 9 0.82
100 1 6 3 . 9 Ā± 1 5 . 3 1 0 2 Ā± 1 5 0.65 1 6 1 . 7 Ā± 1 4 . 7 1 0 1 Ā± 1 4 0.87

ATCC, American Type Culture Collection; CFU, Colony-forming unit; NA, Not applicable; SD, Standard deviation.