Repeated application of shock waves as a possible method for food preservation

The shock compression of microorganism-loaded broths and emulsions: Experiments and simulations

“…This may well be expected to cause a breakdown of the particle however we are unable to verify this using the current setup. Further, other researchers have noted significant bacterial kill with much lower pressures [1,7,8]. This confirms that the mechanisms of kill in the earlier work were not purely dependent on the magnitude of the pressure but rather the degree of repetition and, perhaps, exposure to UV light.…”

“…22 pressures [7,8]. This confirms that the mechanisms of kill were not dependent on the magnitude of the pressure but rather the degree of repetition and, perhaps, exposure to UV light.…”

“…[7] subjected E. coli in suspension to hundreds of shock waves using an electrohydraulic shock wave generator. Using a parabolic reflector, they showed it was possible to produce a plane shock front and expose many samples to shock at the same time.…”

Infected Urinary Stones, Endotoxins and Urosepsis

“…Kerfoot and colleagues (1992) found no effect of shock wave application on S. aureus; however von Eiff et al (2000) reported inactivation of a different strain of the same bacteria. Similarly, whereas Ohshima et al (1991) observed no effect of shock waves on the viability of E. coli strains DSM 1077 and JM 109/pKPDH2, Loske et al (1999) reported inactivation of E. coli strain ATCC 10536. Patel et al (2005) reported no effect of shock waves on a five-stain cocktail of E. coli O157:H7, whereas Podolak et al (2005) reported shock wave inactivation of a slightly different cocktail of the same E. coli.…”

Inactivation of Escherichia coli O157:H7, Salmonella Typhimurium and Listeria monocytogenes by underwater shock waves

“…Kerfoot, Beshai, and Carson (1992) also observed no effect on the viability of Pseudomonas aeruginosa ATCC 27853, Streptococcus faecalis ATCC 29212, Staphylococcus aureus ATCC 25923 and E. coli ATCC 25922 suspensions. More recently, Loske, Prieto, Zavala, Santana, and Armenta (1999) and von Eiff et al (2000) reported partial inactivation of E. coli ATCC 10536 and S. aureus ATCC 29213 suspensions after repeated application of shock waves, respectively. Due to differences in the shock wave generation method and experimental conditions (i.e., shock wave dosage, phase of growth of microorganisms and container used), results are not comparable.…”