Cargando…

Effect of Selected Environmental Factors on the Microbicidal Effectiveness of Radiant Catalytic Ionization

The aim of this study was the assessment of the effect of time exposure, temperature, distance, and organic contaminants on radiant catalytic ionization (RCI) microbicidal effectiveness. The number of all examined bacteria decreased together with time exposure of RCI. The lowest recovery was obtaine...

Descripción completa

Detalles Bibliográficos
Autores principales: Skowron, Krzysztof, Wałecka-Zacharska, Ewa, Grudlewska, Katarzyna, Kwiecińska-Piróg, Joanna, Wiktorczyk, Natalia, Kowalska, Maria, Paluszak, Zbigniew, Kosek-Paszkowska, Katarzyna, Brożek, Klaudia, Korkus, Jakub, Gospodarek-Komkowska, Eugenia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6989485/
https://www.ncbi.nlm.nih.gov/pubmed/32038531
http://dx.doi.org/10.3389/fmicb.2019.03057
_version_ 1783492409628295168
author Skowron, Krzysztof
Wałecka-Zacharska, Ewa
Grudlewska, Katarzyna
Kwiecińska-Piróg, Joanna
Wiktorczyk, Natalia
Kowalska, Maria
Paluszak, Zbigniew
Kosek-Paszkowska, Katarzyna
Brożek, Klaudia
Korkus, Jakub
Gospodarek-Komkowska, Eugenia
author_facet Skowron, Krzysztof
Wałecka-Zacharska, Ewa
Grudlewska, Katarzyna
Kwiecińska-Piróg, Joanna
Wiktorczyk, Natalia
Kowalska, Maria
Paluszak, Zbigniew
Kosek-Paszkowska, Katarzyna
Brożek, Klaudia
Korkus, Jakub
Gospodarek-Komkowska, Eugenia
author_sort Skowron, Krzysztof
collection PubMed
description The aim of this study was the assessment of the effect of time exposure, temperature, distance, and organic contaminants on radiant catalytic ionization (RCI) microbicidal effectiveness. The number of all examined bacteria decreased together with time exposure of RCI. The lowest recovery was obtained, both from the rubber surface (6.36 log CFU × cm(–2)) and steel (6.04 log CFU × cm(–2)) in the case of Escherichia coli O157:H7. On the other hand, Staphylococcus aureus was isolated in the largest number (rubber: 7.88 log CFU × cm(–2), steel: 7.79 log CFU × cm(–2)). Among the tested environmental conditions, the greatest bacterial population was re-isolated at 4°C (distance: 0.5 m, time: 24 h), whereas the lowest population was found at a distance of 0.5 m (temperature: 20°C, time: 24 h) and on surfaces without contamination. In the samples treated with RCI, the bacterial population was the lowest on non-contaminated surfaces, ranging from 3.76 log CFU × cm(–2) (E. coli O157:H7) to 5.58 log CFU × cm(–2) (S. aureus) for the rubber, and from 3.26 log CFU × cm(–2) (E. coli O157:H7) to 5.20 log CFU × cm(–2) (S. aureus) for the stainless steel. The highest bacteria number was isolated from surfaces contaminated with meat and fish pulp. The lowest bacterial reduction caused by RCI was found in the case of rubber contaminated with meat-fish pulp (24 h, 0.5 m, 20°C). The reduction rate was equal to 0.89 log CFU × cm(–2) for S. aureus, 1.17 log CFU × cm(–2) for Listeria monocytogenes, 1.43 log CFU × cm(–2) for Salmonella Enteritidis and 1.61 log CFU × cm(–2) for E. coli O157:H7. In turn, the greatest bacterial reduction was found in the case of non-contaminated steel (24 h, 0.5 m, 37°C). The reduction rate was equal to 4.52 log CFU × cm(–2) for L. monocytogenes, 3.61 log CFU × cm(–2) for S. Enteritidis, 2.98 log CFU × cm(–2) for E. coli O157:H7 and 2.77 log CFU × cm(–2) for S. aureus. RCI allows the inactivation of pathogens from stainless steel and rubber surfaces. Its efficacy is species-dependent and affected by environmental factors.
format Online
Article
Text
id pubmed-6989485
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Frontiers Media S.A.
record_format MEDLINE/PubMed
spelling pubmed-69894852020-02-07 Effect of Selected Environmental Factors on the Microbicidal Effectiveness of Radiant Catalytic Ionization Skowron, Krzysztof Wałecka-Zacharska, Ewa Grudlewska, Katarzyna Kwiecińska-Piróg, Joanna Wiktorczyk, Natalia Kowalska, Maria Paluszak, Zbigniew Kosek-Paszkowska, Katarzyna Brożek, Klaudia Korkus, Jakub Gospodarek-Komkowska, Eugenia Front Microbiol Microbiology The aim of this study was the assessment of the effect of time exposure, temperature, distance, and organic contaminants on radiant catalytic ionization (RCI) microbicidal effectiveness. The number of all examined bacteria decreased together with time exposure of RCI. The lowest recovery was obtained, both from the rubber surface (6.36 log CFU × cm(–2)) and steel (6.04 log CFU × cm(–2)) in the case of Escherichia coli O157:H7. On the other hand, Staphylococcus aureus was isolated in the largest number (rubber: 7.88 log CFU × cm(–2), steel: 7.79 log CFU × cm(–2)). Among the tested environmental conditions, the greatest bacterial population was re-isolated at 4°C (distance: 0.5 m, time: 24 h), whereas the lowest population was found at a distance of 0.5 m (temperature: 20°C, time: 24 h) and on surfaces without contamination. In the samples treated with RCI, the bacterial population was the lowest on non-contaminated surfaces, ranging from 3.76 log CFU × cm(–2) (E. coli O157:H7) to 5.58 log CFU × cm(–2) (S. aureus) for the rubber, and from 3.26 log CFU × cm(–2) (E. coli O157:H7) to 5.20 log CFU × cm(–2) (S. aureus) for the stainless steel. The highest bacteria number was isolated from surfaces contaminated with meat and fish pulp. The lowest bacterial reduction caused by RCI was found in the case of rubber contaminated with meat-fish pulp (24 h, 0.5 m, 20°C). The reduction rate was equal to 0.89 log CFU × cm(–2) for S. aureus, 1.17 log CFU × cm(–2) for Listeria monocytogenes, 1.43 log CFU × cm(–2) for Salmonella Enteritidis and 1.61 log CFU × cm(–2) for E. coli O157:H7. In turn, the greatest bacterial reduction was found in the case of non-contaminated steel (24 h, 0.5 m, 37°C). The reduction rate was equal to 4.52 log CFU × cm(–2) for L. monocytogenes, 3.61 log CFU × cm(–2) for S. Enteritidis, 2.98 log CFU × cm(–2) for E. coli O157:H7 and 2.77 log CFU × cm(–2) for S. aureus. RCI allows the inactivation of pathogens from stainless steel and rubber surfaces. Its efficacy is species-dependent and affected by environmental factors. Frontiers Media S.A. 2020-01-23 /pmc/articles/PMC6989485/ /pubmed/32038531 http://dx.doi.org/10.3389/fmicb.2019.03057 Text en Copyright © 2020 Skowron, Wałecka-Zacharska, Grudlewska, Kwiecińska-Piróg, Wiktorczyk, Kowalska, Paluszak, Kosek-Paszkowska, Brożek, Korkus and Gospodarek-Komkowska. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Skowron, Krzysztof
Wałecka-Zacharska, Ewa
Grudlewska, Katarzyna
Kwiecińska-Piróg, Joanna
Wiktorczyk, Natalia
Kowalska, Maria
Paluszak, Zbigniew
Kosek-Paszkowska, Katarzyna
Brożek, Klaudia
Korkus, Jakub
Gospodarek-Komkowska, Eugenia
Effect of Selected Environmental Factors on the Microbicidal Effectiveness of Radiant Catalytic Ionization
title Effect of Selected Environmental Factors on the Microbicidal Effectiveness of Radiant Catalytic Ionization
title_full Effect of Selected Environmental Factors on the Microbicidal Effectiveness of Radiant Catalytic Ionization
title_fullStr Effect of Selected Environmental Factors on the Microbicidal Effectiveness of Radiant Catalytic Ionization
title_full_unstemmed Effect of Selected Environmental Factors on the Microbicidal Effectiveness of Radiant Catalytic Ionization
title_short Effect of Selected Environmental Factors on the Microbicidal Effectiveness of Radiant Catalytic Ionization
title_sort effect of selected environmental factors on the microbicidal effectiveness of radiant catalytic ionization
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6989485/
https://www.ncbi.nlm.nih.gov/pubmed/32038531
http://dx.doi.org/10.3389/fmicb.2019.03057
work_keys_str_mv AT skowronkrzysztof effectofselectedenvironmentalfactorsonthemicrobicidaleffectivenessofradiantcatalyticionization
AT wałeckazacharskaewa effectofselectedenvironmentalfactorsonthemicrobicidaleffectivenessofradiantcatalyticionization
AT grudlewskakatarzyna effectofselectedenvironmentalfactorsonthemicrobicidaleffectivenessofradiantcatalyticionization
AT kwiecinskapirogjoanna effectofselectedenvironmentalfactorsonthemicrobicidaleffectivenessofradiantcatalyticionization
AT wiktorczyknatalia effectofselectedenvironmentalfactorsonthemicrobicidaleffectivenessofradiantcatalyticionization
AT kowalskamaria effectofselectedenvironmentalfactorsonthemicrobicidaleffectivenessofradiantcatalyticionization
AT paluszakzbigniew effectofselectedenvironmentalfactorsonthemicrobicidaleffectivenessofradiantcatalyticionization
AT kosekpaszkowskakatarzyna effectofselectedenvironmentalfactorsonthemicrobicidaleffectivenessofradiantcatalyticionization
AT brozekklaudia effectofselectedenvironmentalfactorsonthemicrobicidaleffectivenessofradiantcatalyticionization
AT korkusjakub effectofselectedenvironmentalfactorsonthemicrobicidaleffectivenessofradiantcatalyticionization
AT gospodarekkomkowskaeugenia effectofselectedenvironmentalfactorsonthemicrobicidaleffectivenessofradiantcatalyticionization