Initial inoculation level and quat concentration | Storage condition between collection and analysis | Number of positive test portions collected using each brotha | ||
---|---|---|---|---|
D/E | Letheen | HiCap | ||
~ 800 CFU/square of Lm and 400 ppm of quat | 2 h at RT (p = 0.44) | 18 | 15 | 15 |
24 h at 4 °C (p = 0.06) | 13 a | 19 b | 18 ab | |
72 h at 4 °C (p = 0.15) | 14 | 19 | 16 | |
~ 3000 CFU/square of Lm and 8000 ppm of quat | 2 h at RT (p = 0.0002) | 10 a | 1 b* | 13 a |
24 h at 4 °C (p = 0.002) | 12 a | 2 b* | 11 a | |
72 h at 4 °C (p = 0.0008) | 11 a | 2 b* | 13 a |