Temperature |
k(d-1) |
a
T
c
(days) |
b
R
2
|
c
D
10
(days) |
---|
Low temp (25°C) | 0.1177 | > 60 | 0.81 | 9 - 10 |
Mesophilic temp (37°C) | 0.1335 | > 40 | 0.94 | 7 - 8 |
Thermophilic temp (52.5°C) | 2.0069 | < 4 | 0.93 | < 1 |
-
a T
c
is required time for "complete" inactivation (first sample in which E. coli concentration was below detection limit.
-
b
R2 values were obtained from liner regression between Log10 E. coli concentrations (CFU/ml) and incubation periods (days).
-
c
D
10
decimal reduction time (reduction of the population by one log-unit) corresponding to Figures 1a, 1b, and 1c.