TABLE 3.

Heat resistance and CPE production of enterotoxigenic C. perfringens isolates from food poisoning outbreaks and Japanese retail meats

Strain	Origin	cpe genotype	D value at 100°C (min)	CPE production
No. 2	Food poisoning	Plasmid (IS1151)	2.4	+
T16	Food poisoning	Plasmid (IS1470 like)	2.5	+
TM111C1	Food	Plasmid (IS1470 like)	1.9	+
TM138	Food	Plasmid (IS1470 like)	1.3	+
TM178	Food	Plasmid (IS1470 like)	1.9	+
NCTC8239	Food poisoning	Chromosome	16.5	+
F4969	Sporadic diarrhea	Plasmid (IS1470 like)	2.2	+
ATCC 3624		cpe negative	NTa	−

^aNT, not tested.