Summary
Abstract
A study was conducted to evaluate the efficacy of electrolyzed acidic water, 200-ppm chlorine water, and sterile distilled water in killing Escherichia coli O157:H7, Salmonella, and Listeria monocytogenes on the surfaces of spot-inoculated tomatoes. Inoculated tomatoes were sprayed with electrolyzed acidic water, 200-ppm chlorine water, and sterile distilled water (control) and rubbed by hand for 40 s. Populations of E. coli O157:H7, Salmonella, and L. monocytogenes in the rinse water and in the peptone wash solution were determined. Treatment with 200-ppm chlorine water and electrolyzed acidic water resulted in 4.87- and 7.85-log10 reductions, respectively, in Escherichia coli O157:H7 counts and 4.69- and 7.46-log10 reductions, respectively, in Salmonella counts. Treatment with 200-ppm chlorine water and electrolyzed acidic water reduced the number of L. monocytogenes by 4.76 and 7.54 log10 CFU per tomato, respectively. This study s findings suggest that electrolyzed acidic water could be useful in controlling pathogenic microorganisms on fresh produce.
Study details
- Published in: Journal of Food Protection 66.9 (2003): 1540-1540
- Microbes studied: Escherichia coli O157: H7, Salmonella Enteritidis, Listeria monocytogenes
Source
Source: Journal of Food Protection 66.9 (2003): 1540-1540
Conditions tested
| Parameter | Value |
|---|---|
| Organisms | Escherichia coli, Listeria monocytogenes, Salmonella |
| Relevant sectors | Food Processing, Produce & Packing |
| Publication | Journal of Food Protection, 2003 |
Reading this responsibly
Published figures are obtained under controlled conditions, usually on clean surfaces or in defined matrices. Organic load, surface condition, temperature and application coverage all affect real-world performance. Use these numbers to design a protocol, then validate it on your own site with environmental swabbing.
Applying it
Concentrations in this range are within the adjustable output of every EcoloxTech commercial system, so implementing this protocol is a settings question rather than a procurement one. Where the claim needs to sit on a registered label, see HOCl-AS200, EPA Reg. No. 101112-1.