Sanitizing food contact surfaces by the use of essential oils
Chemical sanitizers continue to be widely used by the food industry to disinfect food contact surfaces. However, as some chemical disinfectants have been reported to produce unhealthy by-products, alternative and natural compounds need to be investigated. To this end, nine essential oils (EOs) were screened to develop a natural sanitizing solution (SAN) for disinfecting food contact surfaces. Once extracted, their antimicrobial activity and chemical composition were determined. An exploratory multivariate approach was used to investigate the relationships between the chemical and microbiological data sets. Among the tested EOs, Thymbra capitata EO, containing up to 93.31% oxygenated monoterpenes (mainly carvacrol), showed the strongest antimicrobial activity and thus was assayed as a potential SAN for food contact surfaces. To this end, a SAN consisting of 1% T. capitata EO was first validated according to the AOAC standard, which showed about 8 log reduction for Escherichia coli and Salmonella enterica after 30 and 60 s of contact time, respectively. Then, the SAN was evaluated at various concentrations, cleanliness conditions, and contact times on stainless steel, glass, and polypropylene surfaces for sanitizing purposes. The results showed that the SAN containing 2.5% of T. capitata EO applied for 10 min, reduced the levels of E. coli by >3 log and S. enterica by 1 log under clean working conditions on the three tested surfaces. These findings indicate that EOs can be used as natural disinfectants to decontaminate food contact surfaces, thus lowering the risk of the indirect transfer of bacterial pathogens to food or persons.
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Format: | artículo biblioteca |
Language: | English |
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Elsevier
2018-02-14
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Subjects: | Essential oils, Natural sanitizers, Foodborne pathogens, Food contact surfaces, Food safety, |
Online Access: | http://hdl.handle.net/10261/166582 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/100007652 |
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dig-iata-es-10261-1665822019-02-14T05:30:47Z Sanitizing food contact surfaces by the use of essential oils Falcó, Irene Verdeguer, M. Aznar, Rosa Sánchez Moragas, Gloria Randazzo, Walter Ministerio de Economía y Competitividad (España) CSIC - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA) European Commission Essential oils Natural sanitizers Foodborne pathogens Food contact surfaces Food safety Chemical sanitizers continue to be widely used by the food industry to disinfect food contact surfaces. However, as some chemical disinfectants have been reported to produce unhealthy by-products, alternative and natural compounds need to be investigated. To this end, nine essential oils (EOs) were screened to develop a natural sanitizing solution (SAN) for disinfecting food contact surfaces. Once extracted, their antimicrobial activity and chemical composition were determined. An exploratory multivariate approach was used to investigate the relationships between the chemical and microbiological data sets. Among the tested EOs, Thymbra capitata EO, containing up to 93.31% oxygenated monoterpenes (mainly carvacrol), showed the strongest antimicrobial activity and thus was assayed as a potential SAN for food contact surfaces. To this end, a SAN consisting of 1% T. capitata EO was first validated according to the AOAC standard, which showed about 8 log reduction for Escherichia coli and Salmonella enterica after 30 and 60 s of contact time, respectively. Then, the SAN was evaluated at various concentrations, cleanliness conditions, and contact times on stainless steel, glass, and polypropylene surfaces for sanitizing purposes. The results showed that the SAN containing 2.5% of T. capitata EO applied for 10 min, reduced the levels of E. coli by >3 log and S. enterica by 1 log under clean working conditions on the three tested surfaces. These findings indicate that EOs can be used as natural disinfectants to decontaminate food contact surfaces, thus lowering the risk of the indirect transfer of bacterial pathogens to food or persons. This work was supported by the Spanish Ministry of Economy and Competitiveness (MINECO) (RYC-2012-09950) and the Spanish National Institute for Agricultural and Food Research and Technology (INIA) co-financed by the European Social Fund (Project RTA2014-00024-C03). GS was supported by the “Ramon y Cajal” Young Investigator. Peer reviewed 2018-06-19T07:56:15Z 2018-06-19T07:56:15Z 2018-02-14 artículo http://purl.org/coar/resource_type/c_6501 Innovative Food Science and Emerging Technologies DOI:10.1016/j.ifset.2018.02.013 1466-8564 http://hdl.handle.net/10261/166582 10.1016/j.ifset.2018.02.013 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/100007652 en #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/RTA2014-00024-C03 Postprint https://doi.org/10.1016/j.ifset.2018.02.013 Sí open Elsevier |
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Essential oils Natural sanitizers Foodborne pathogens Food contact surfaces Food safety Essential oils Natural sanitizers Foodborne pathogens Food contact surfaces Food safety |
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Essential oils Natural sanitizers Foodborne pathogens Food contact surfaces Food safety Essential oils Natural sanitizers Foodborne pathogens Food contact surfaces Food safety Falcó, Irene Verdeguer, M. Aznar, Rosa Sánchez Moragas, Gloria Randazzo, Walter Sanitizing food contact surfaces by the use of essential oils |
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Chemical sanitizers continue to be widely used by the food industry to disinfect food contact surfaces. However, as some chemical disinfectants have been reported to produce unhealthy by-products, alternative and natural compounds need to be investigated. To this end, nine essential oils (EOs) were screened to develop a natural sanitizing solution (SAN) for disinfecting food contact surfaces. Once extracted, their antimicrobial activity and chemical composition were determined. An exploratory multivariate approach was used to investigate the relationships between the chemical and microbiological data sets. Among the tested EOs, Thymbra capitata EO, containing up to 93.31% oxygenated monoterpenes (mainly carvacrol), showed the strongest antimicrobial activity and thus was assayed as a potential SAN for food contact surfaces. To this end, a SAN consisting of 1% T. capitata EO was first validated according to the AOAC standard, which showed about 8 log reduction for Escherichia coli and Salmonella enterica after 30 and 60 s of contact time, respectively. Then, the SAN was evaluated at various concentrations, cleanliness conditions, and contact times on stainless steel, glass, and polypropylene surfaces for sanitizing purposes. The results showed that the SAN containing 2.5% of T. capitata EO applied for 10 min, reduced the levels of E. coli by >3 log and S. enterica by 1 log under clean working conditions on the three tested surfaces. These findings indicate that EOs can be used as natural disinfectants to decontaminate food contact surfaces, thus lowering the risk of the indirect transfer of bacterial pathogens to food or persons. |
author2 |
Ministerio de Economía y Competitividad (España) |
author_facet |
Ministerio de Economía y Competitividad (España) Falcó, Irene Verdeguer, M. Aznar, Rosa Sánchez Moragas, Gloria Randazzo, Walter |
format |
artículo |
topic_facet |
Essential oils Natural sanitizers Foodborne pathogens Food contact surfaces Food safety |
author |
Falcó, Irene Verdeguer, M. Aznar, Rosa Sánchez Moragas, Gloria Randazzo, Walter |
author_sort |
Falcó, Irene |
title |
Sanitizing food contact surfaces by the use of essential oils |
title_short |
Sanitizing food contact surfaces by the use of essential oils |
title_full |
Sanitizing food contact surfaces by the use of essential oils |
title_fullStr |
Sanitizing food contact surfaces by the use of essential oils |
title_full_unstemmed |
Sanitizing food contact surfaces by the use of essential oils |
title_sort |
sanitizing food contact surfaces by the use of essential oils |
publisher |
Elsevier |
publishDate |
2018-02-14 |
url |
http://hdl.handle.net/10261/166582 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/100007652 |
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