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Kinetics of Escherichia coli inactivation employing hydrogen peroxide at varying temperatures, pH and concentrations

dc.creatorRaffellini, Silvia Monica
dc.creatorSchenk, Marcela Liliana
dc.creatorGuerrero, Sandra N.
dc.creatorAlzamora, Stella Maris
dc.date.accessioned2019-01-17T21:54:37Z
dc.date.accessioned2022-10-15T16:17:57Z
dc.date.available2019-01-17T21:54:37Z
dc.date.available2022-10-15T16:17:57Z
dc.date.created2019-01-17T21:54:37Z
dc.date.issued2011-06
dc.identifierRaffellini, Silvia Monica; Schenk, Marcela Liliana; Guerrero, Sandra N.; Alzamora, Stella Maris; Kinetics of Escherichia coli inactivation employing hydrogen peroxide at varying temperatures, pH and concentrations; Elsevier; Food Control; 22; 6; 6-2011; 920-932
dc.identifier0956-7135
dc.identifierhttp://hdl.handle.net/11336/68239
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4408146
dc.description.abstractThe effectiveness of hydrogen peroxide on the destruction of planktonic cells of Escherichia coli at different temperatures, pH and sanitizer concentrations was studied. Inactivation kinetics of E. coli exhibited a clear dependence on hydrogen peroxide concentration, pH and temperature. A Weibullian mathematical model successfully described the inactivation curves. Quantitative kinetic results obtained allowed to identify various combinations H2O2 concentration-pH-temperature for 5-log cycles reduction of E. coli. Flow cytometry analysis revealed induced H2O2 cytoplasm membrane damage. TEM observations indicated that H2O2 treatment resulted in rupture of outer and cytoplasm membranes and a more uniform granularity.
dc.languageeng
dc.publisherElsevier
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.foodcont.2010.11.027
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0956713510004081
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectE. Coli
dc.subjectHydrogen Peroxide
dc.subjectInactivation Kinetics
dc.subjectPh
dc.subjectTemperature
dc.subjectTime to 5-Log Reductions
dc.titleKinetics of Escherichia coli inactivation employing hydrogen peroxide at varying temperatures, pH and concentrations
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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