EFFICACY OF ECOQUEST RADIANT CATALYTIC IONIZATION CELL AND BREEZE AT OZONE GENERATOR AT REDUCING MICROBIAL POPULATIONS ON STAINLESS STEEL SURFACES
JOURNAL OF RAPID METHODS AND AUTOMATION IN MICROBIOLOGY(2007)
Abstract
The improvement of disinfection technology for contact surfaces in health care, food processing, schools and residential environments is critical for the control and prevention of disease-causing microorganisms. Historically, both ozone- and peroxide-based technologies have been used as disinfectants in numerous applications. This study determined the potential use of oxidative gases, including ozone and peroxide, generated by the EcoQuest Radiant Catalytic Ionization (RCI) cell for the inactivation of Escherichia coli, Listeria monocytogenes, Streptococcus pneumoniae, Pseudomonas aeruginosa, Bacillus globigii, Staphylococcus aureus, Candida albicans and Stachybotrys chartarum on stainless steel surfaces. In addition, the EcoQuest Breeze AT ozone generator was evaluated for the inactivation of C. albicans and S. chartarum on stainless steel surfaces at diverse contact times in a controlled airflow cabinet. Results showed that oxidative gases produced by the RCI cell reduced all microorganisms tested by at least 90% after a 24 h exposure on stainless steel surfaces. The RCI cell was more effective at reducing microbial counts for shorter exposure times than was the Breeze AT ozone generator.
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Key words
ozone
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