Higher microbial reduction numbers after combination of ultrasound
and SAEW can be expected due to the ultrasound mechanism
of action, creating regions of high pressure and temperature,
damaging the microbial cell wall, resulting in higher uptake of
SAEW (Piyasena et al., 2003) which would consequently result in
maximum cellular damage (Nan et al., 2010). Also the micromechanical
shocks created in the local regions of high pressure and
temperature may physically remove a number of cells and make the
surface attachment of some other cells weaker (Ellery and Schleyer,
1984). Consequently, these cells may be more accessible to HOCl.
Also, ultrasonication may have the potential to extend produce
shelf life (Cao et al., 2010).