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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/40837
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dc.creatorJuliana de Oliveira Moraespt_BR
dc.creatorEllen Abreu da Cruzpt_BR
dc.creatorÍtalo Pinheiropt_BR
dc.creatorTereza Cristina Rocha Moreira de Oliveirapt_BR
dc.creatorVerônica Ortiz Alvarengapt_BR
dc.creatorAnderson de Souza Sant'Anapt_BR
dc.creatorMarciane Magnanipt_BR
dc.date.accessioned2022-04-06T20:07:31Z-
dc.date.available2022-04-06T20:07:31Z-
dc.date.issued2019-10-
dc.citation.volume83pt_BR
dc.citation.spage95pt_BR
dc.citation.epage103pt_BR
dc.identifier.doi10.1016/j.fm.2019.04.012pt_BR
dc.identifier.issn0740-0020pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/40837-
dc.description.resumoThis study assessed the adhesion and formation of biofilm by five Salmonella enterica strains (S. Enteritidis 132, S. Infantis 176, S. Typhimurium 177, S. Heidelberg 281 and S. Corvallis 297) on polypropylene (PP) and glass (G) surfaces as affected by pH (4–7), NaCl concentration (0–10% w/v) and temperature (8–35 °C). Sessile counts <3 log CFU/cm2 were considered lack of adhesion (category 1), while counts ≥ 3 and < 5 log CFU/cm2 corresponded to adhesion (category 2) and counts ≥ 5 log CFU/cm2 corresponded biofilm formation (category 3). The obtained results categorized in these three responses were used to develop ordinal regression models to predict the probability of biofilm stages on PP- and G-surfaces. The experimental outcomes for lack of adhesion were >90% on PP- and G-surfaces. Generally, adhesion outcomes corresponded to approximately 36% of the total, whereas biofilm outcomes were close to 65% in both PP- and G-surfaces. The biofilm stages varied among the strains studied and with the material surface under the same experimental conditions. According to the generated ordinal models, the probability of adhesion and biofilm formation on PP-surface by the five S. enterica strains tested decreased at pH 4 or 5 in NaCl concentrations >4% and at a temperature <20 °C. On G-surface, the probability of adhesion increased pH 6 or 7, in the absence of NaCl and temperatures <20 °C, while, the probability of biofilm formation increased in the same pH, NaCl concentration up to 4% and temperatures ≥20 °C. This is the first study assessing the biofilm formation through categorical, ordinal responses and it shows that ordinal regression models can be useful to predict biofilm stages of S. enterica as a function of pH, NaCl, and temperature or their interactions.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentFAR - DEPARTAMENTO DE ALIMENTOSpt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofFood Microbiologypt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectPredictive microbiologypt_BR
dc.subjectCross contaminationpt_BR
dc.subjectFood safetypt_BR
dc.subjectCleaning disinfectionpt_BR
dc.subjectAttachmentpt_BR
dc.subject.otherBiofilmept_BR
dc.subject.otherSalmonella entericapt_BR
dc.subject.otherSegurança alimentarpt_BR
dc.titleAn ordinal logistic regression approach to predict the variability on biofilm formation stages by five Salmonella enterica strains on polypropylene and glass surfaces as affected by pH, temperature and NaClpt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S0740002019301364?via%3Dihubpt_BR
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