TABLE 2.

Parameter estimates of the biphasic logistic model

Strain	Growth phase	% NaCl	Parameter valuec
			log10N(0)	f	ksens	tS	kres
ATCC 10987	Exponential	0	6.85	5.94 × 10−6	6.00	NS	0a
		1	6.84	6.10 × 10−6	0.74	NS	0a
		2.5	6.48	1.54 × 10−5	0.65	NS	0a
		5	5.04	4.59 × 10−4	1.18	NS	0a
	Transition	0	7.74	9.42 × 10−7	0.69	NS	0a
		2.5	7.61	2.48 × 10−6	0.57	NS	0a
	Stationary	0	7.56	3.94 × 10−6	0.43	NS	0a
		2.5	7.39	1.72 × 10−5	0.61	5.63	0a
ATCC 14579	Exponential	0	6.96	1.65 × 10−3	0.84	NS	0.22
		1	6.92	1.19 × 10−3b	0.91	8.86	0.27
		2.5	6.70	2.89 × 10−4b	0.57	9.05	0.14b
		5	6.49	5.66 × 10−4b	0.63	5.84	0.17
	Transition	0	7.86	6.30 × 10−5b	0.47	6.66	0.12
		2.5	7.95	NS	0.35	13.50	NS
	Stationary	0	8.04	3.63 × 10−4b	0.38	NS	0.12
		2.5	8.07	1.41 × 10−3b	0.49	5.02	0.15

^aParameter was fixed at 0 because the inactivation rate k_res was 0 for the heat-resistant population of spores at 50°C.

^bParameter was not significant for this experimental condition, but the parameter was not excluded from the model because the F test showed that the phenomenon of two populations was significant.

^cNS, nonsignificant parameter for this experimental condition.