An 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 NaCl

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dc.creatorJuliana de Oliveira Moraes
dc.creatorEllen Abreu da Cruz
dc.creatorÍtalo Pinheiro
dc.creatorTereza Cristina Rocha Moreira de Oliveira
dc.creatorVerônica Ortiz Alvarenga
dc.creatorAnderson de Souza Sant'Ana
dc.creatorMarciane Magnani
dc.date.accessioned2022-04-06T20:07:31Z
dc.date.accessioned2025-09-08T22:49:08Z
dc.date.available2022-04-06T20:07:31Z
dc.date.issued2019-10
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.format.mimetypepdf
dc.identifier.doi10.1016/j.fm.2019.04.012
dc.identifier.issn0740-0020
dc.identifier.urihttps://hdl.handle.net/1843/40837
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofFood Microbiology
dc.rightsAcesso Aberto
dc.subjectBiofilme
dc.subjectSalmonella enterica
dc.subjectSegurança alimentar
dc.subject.otherPredictive microbiology
dc.subject.otherCross contamination
dc.subject.otherFood safety
dc.subject.otherCleaning disinfection
dc.subject.otherAttachment
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 NaCl
dc.typeArtigo de periódico
local.citation.epage103
local.citation.spage95
local.citation.volume83
local.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.
local.publisher.countryBrasil
local.publisher.departmentFAR - DEPARTAMENTO DE ALIMENTOS
local.publisher.initialsUFMG
local.url.externahttps://www.sciencedirect.com/science/article/pii/S0740002019301364?via%3Dihub

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