Synergistic inactivation of Escherichia coli O157:H7 by plasma-activated water and mild heat

This study was designed to evaluate the synergistic antimicrobial effect of plasma-activated water (PAW) combined with mild heat (40, 50, and 60 °C) against Escherichia coli O157:H7. Populations of E. coli O157:H7 were reduced from about 8.28 log CFU/mL to undetectable levels following exposure to the combined treatment of PAW and mild heat (60 °C, 4 min), which was higher than that of individual treatment of PAW (0.77 log CFU/mL) or mild heat...