Temperature
(°C)		 Initial value
(log CFU/g)		 Lag phase
(hr)		 Maximum rate
(log CFU/g/hr)		 Final value
(log CFU/g)		 R-square
4 ND ND ND ND ND
10 3.76 15.0 0.03 6.59 0.98
15 3.51 11.7 0.34 8.57 0.99
22 3.51 4.63 0.34 9.91 0.99
30 4.04 1.75 0.65 10.1 0.99

Lag phase, exponential phase growth rates, stationary phase times were determined using DMFit software available through ComBase. ND= Not determined due to lack of growth.
Table 1: Estimated maximum growth rate, lag time and maximum population of non-O157:H7 Shiga-toxin producing Escherichia coli inoculated on catfish fillets at different temperatures.