Summary
Abstract
Low concentration electrolyzed water (LcEW) has been proved to be an effective sanitizer against pathogens in cell suspensions as well as pathogens and spoilage organisms attached to vegetables, poultry and meat. In this study, effect of current, electrolysis time and salt concentration on physical properties (pH, ORP and ACC) and inactivation efficacy of LcEW was monitored. Pure cultures of Escherichia coli O157:H7 and Listeria monocytogenes were prepared and exposure treatment was performed for bacteria inactivation study in cell suspensions at room temperature (23 2 C). Our results showed increased reduction of both pathogens with the increase in current. Changes of current also affected the ACC, pH and ORP values of the tested solution. Values of ACC, pH and ORP were increased with the increase in current. Log reduction of 4.9 5.6 log CFU/mL for both pathogens was achieved when the current was increased from 1.15 to 1.45 A. Electrolysis time and percent of salt concentration also influenced the physical properties of LcEW. Stability of LcEW was also investigated under different conditions and it was observed that LcEW produced with increased electrical current was more stable during storage. Therefore, current might influence the properties and sanitizing effect of LcEW.
Study details
- Published in: Journal of Food Engineering 113.4 (2012): 548-553
- Microbes studied: Escherichia coli O157:H7, Listeria monocytogenes
Source
Source: Journal of Food Engineering 113.4 (2012): 548-553
Conditions tested
| Parameter | Value |
|---|---|
| Organisms | Escherichia coli, Listeria monocytogenes |
| Relevant sectors | Food Processing |
| Publication | Journal of Food Engineering, 2012 |
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.