Sanitary aspects and technological challenges of whole milk microfiltration at low temperatures

Detalhes bibliográficos
Autor(a) principal: Fagnani, Rafael
Data de Publicação: 2016
Outros Autores: Mexia, Marisa Marroni, Puppio, Ana Amélia Nunes, Battaglini, Ana Paula Pavão
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/21867
Resumo: The objective of this work was to evaluate the effects of whole milk microfiltration at low temperatures on bacterial counts and on its shelf life. The microfiltration process was evaluated at two temperatures (30 and 50ºC) and compared with the slow pasteurization process. Both slow pasteurization and microfiltration reduced the initial counts of aerobic mesophilic and psychrotrophic bacteria, as well as total coliforms in whole milk. Microfiltration at 50ºC was as effective as the pasteurization process, since it reduced the initial count of aerobic mesophilic bacteria in 4.4 log cycles; increased the product’s shelf life, which reached 30 days without exceeding 1,000 CFU mL‑1; and eliminated coliform counts at the temperatures of 35 and 45ºC, established by the Brazilian legislation. Microfiltration at 30°C reduced the aerobic mesophilic bacteria counts by 2.2 log cycles; however, Escherichia coli was found in the product, which exhibited a shelf life of less than five days. Therefore, microfiltration at 30ºC can be associated with thermal treatments, but, when applied alone, it shows unsatisfactory results.
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spelling Sanitary aspects and technological challenges of whole milk microfiltration at low temperaturesAspectos sanitários e desafios tecnológicos da microfiltração de leite integral a baixas temperaturasEscherichia coli; membrane; microbiological quality; pasteurization; shelf lifeEscherichia coli; membrana; qualidade microbiológica; pasteurização; vida de prateleiraThe objective of this work was to evaluate the effects of whole milk microfiltration at low temperatures on bacterial counts and on its shelf life. The microfiltration process was evaluated at two temperatures (30 and 50ºC) and compared with the slow pasteurization process. Both slow pasteurization and microfiltration reduced the initial counts of aerobic mesophilic and psychrotrophic bacteria, as well as total coliforms in whole milk. Microfiltration at 50ºC was as effective as the pasteurization process, since it reduced the initial count of aerobic mesophilic bacteria in 4.4 log cycles; increased the product’s shelf life, which reached 30 days without exceeding 1,000 CFU mL‑1; and eliminated coliform counts at the temperatures of 35 and 45ºC, established by the Brazilian legislation. Microfiltration at 30°C reduced the aerobic mesophilic bacteria counts by 2.2 log cycles; however, Escherichia coli was found in the product, which exhibited a shelf life of less than five days. Therefore, microfiltration at 30ºC can be associated with thermal treatments, but, when applied alone, it shows unsatisfactory results.O objetivo deste trabalho foi avaliar os efeitos da microfiltração do leite integral a baixas temperaturas, nas contagens bacterianas e na sua vida de prateleira. O processo de microfiltração foi avaliado a duas temperaturas (30 e 50ºC) e comparado à pasteurização lenta. Tanto a pasteurização quanto a microfiltração reduziram as contagens iniciais de bactérias aeróbias mesófilas e psicrotróficas, bem como a de coliformes totais no leite integral. A microfiltração a 50oC foi tão efetiva quanto o processo de pasteurização, tendo reduzido as contagens iniciais de bactérias aeróbias mesófilas em 4,4 ciclos logarítimicos; aumentado a durabilidade do produto, que atingiu 30 dias sem exceder 1.000 UFC mL‑1; e eliminado coliformes nas temperaturas de 35 e 45ºC, estabelecidas pela legislação brasileira. A microfiltração a 30ºC reduziu as contagens iniciais de bactérias aeróbias mesófilas em 2,2 ciclos logarítimicos; entretanto, Escherichia coli foi detectada no produto, que apresentou vida útil inferior a cinco dias. Portanto, a microfiltração a 30ºC pode ser associada a tratamentos térmicos, mas, quando aplicada isoladamente, apresenta resultados insatisfatórios.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCapes, Coordenação de aperfeiçoamento de Pessoal de Nível SuperiorFunadesp, Fundação Nacional de Desenvolvimento do Ensino Superior ParticularCapes, Coordenação de aperfeiçoamento de Pessoal de Nível SuperiorFunadesp, Fundação Nacional de Desenvolvimento do Ensino Superior ParticularFagnani, RafaelMexia, Marisa MarroniPuppio, Ana Amélia NunesBattaglini, Ana Paula Pavão2016-10-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/21867Pesquisa Agropecuaria Brasileira; v.51, n.8, ago. 2016; 990-997Pesquisa Agropecuária Brasileira; v.51, n.8, ago. 2016; 990-9971678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/21867/13452https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/21867/13955Direitos autorais 2016 Pesquisa Agropecuária Brasileirainfo:eu-repo/semantics/openAccess2016-10-04T18:25:48Zoai:ojs.seer.sct.embrapa.br:article/21867Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2016-10-04T18:25:48Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Sanitary aspects and technological challenges of whole milk microfiltration at low temperatures
Aspectos sanitários e desafios tecnológicos da microfiltração de leite integral a baixas temperaturas
title Sanitary aspects and technological challenges of whole milk microfiltration at low temperatures
spellingShingle Sanitary aspects and technological challenges of whole milk microfiltration at low temperatures
Fagnani, Rafael
Escherichia coli; membrane; microbiological quality; pasteurization; shelf life
Escherichia coli; membrana; qualidade microbiológica; pasteurização; vida de prateleira
title_short Sanitary aspects and technological challenges of whole milk microfiltration at low temperatures
title_full Sanitary aspects and technological challenges of whole milk microfiltration at low temperatures
title_fullStr Sanitary aspects and technological challenges of whole milk microfiltration at low temperatures
title_full_unstemmed Sanitary aspects and technological challenges of whole milk microfiltration at low temperatures
title_sort Sanitary aspects and technological challenges of whole milk microfiltration at low temperatures
author Fagnani, Rafael
author_facet Fagnani, Rafael
Mexia, Marisa Marroni
Puppio, Ana Amélia Nunes
Battaglini, Ana Paula Pavão
author_role author
author2 Mexia, Marisa Marroni
Puppio, Ana Amélia Nunes
Battaglini, Ana Paula Pavão
author2_role author
author
author
dc.contributor.none.fl_str_mv Capes, Coordenação de aperfeiçoamento de Pessoal de Nível Superior
Funadesp, Fundação Nacional de Desenvolvimento do Ensino Superior Particular
Capes, Coordenação de aperfeiçoamento de Pessoal de Nível Superior
Funadesp, Fundação Nacional de Desenvolvimento do Ensino Superior Particular
dc.contributor.author.fl_str_mv Fagnani, Rafael
Mexia, Marisa Marroni
Puppio, Ana Amélia Nunes
Battaglini, Ana Paula Pavão
dc.subject.por.fl_str_mv Escherichia coli; membrane; microbiological quality; pasteurization; shelf life
Escherichia coli; membrana; qualidade microbiológica; pasteurização; vida de prateleira
topic Escherichia coli; membrane; microbiological quality; pasteurization; shelf life
Escherichia coli; membrana; qualidade microbiológica; pasteurização; vida de prateleira
description The objective of this work was to evaluate the effects of whole milk microfiltration at low temperatures on bacterial counts and on its shelf life. The microfiltration process was evaluated at two temperatures (30 and 50ºC) and compared with the slow pasteurization process. Both slow pasteurization and microfiltration reduced the initial counts of aerobic mesophilic and psychrotrophic bacteria, as well as total coliforms in whole milk. Microfiltration at 50ºC was as effective as the pasteurization process, since it reduced the initial count of aerobic mesophilic bacteria in 4.4 log cycles; increased the product’s shelf life, which reached 30 days without exceeding 1,000 CFU mL‑1; and eliminated coliform counts at the temperatures of 35 and 45ºC, established by the Brazilian legislation. Microfiltration at 30°C reduced the aerobic mesophilic bacteria counts by 2.2 log cycles; however, Escherichia coli was found in the product, which exhibited a shelf life of less than five days. Therefore, microfiltration at 30ºC can be associated with thermal treatments, but, when applied alone, it shows unsatisfactory results.
publishDate 2016
dc.date.none.fl_str_mv 2016-10-04
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/21867
url https://seer.sct.embrapa.br/index.php/pab/article/view/21867
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/21867/13452
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/21867/13955
dc.rights.driver.fl_str_mv Direitos autorais 2016 Pesquisa Agropecuária Brasileira
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Direitos autorais 2016 Pesquisa Agropecuária Brasileira
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.51, n.8, ago. 2016; 990-997
Pesquisa Agropecuária Brasileira; v.51, n.8, ago. 2016; 990-997
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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