Survival of Five Strains of Shiga Toxigenic Escherichia coli in a Sausage Fermentation Model and Subsequent Sensitivity to Stress from Gastric Acid and Intestinal Fluid

Table 2

Digestion challenge model treatments.

Sample	Treatment time (min)
	Gastric acid	Intestinal fluid
G1	1	0
G30	30	0
G30I30	30	30
G30I120	30	120
G30I240	30	240
G120	120	0
G120I30	120	30
G120I120	120	120
G120I240	120	240

Details are described in Materials and Methods. Digestion challenge model. E. coli isolates surviving a TFS production process were exposed to a model mimicking part of the gastrointestinal tract. G: gastric acid treatment and I: intestinal fluid treatment.