In Table 1, the “Big Six” non-O157 STECs and E. coli O157:H7 in
FSP showed similar resistance to pressure treatment. However, the
“Big Six” may be slightly more pressure resistant. In a study reported
by Cutter et al. (2012) only 3- to 4-log reduction of the “Big
Six” non-O157 STECswas achieved in the ground-beef patties whenan HPP at 400 MPa for 4 minwas applied. Therefore, it appears that
the STECs in FSP may be more sensitive to pressure than that in
ground beef. To achieve the critical pathogen reduction, HPP parameters
need to be determined or modified per specified food
requirement to ensure microbial safety.