Quality of ovine raw milk stored under refrigeration
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2017 |
| Outros Autores: | , , , , |
| Tipo de documento: | Artigo |
| Idioma: | por eng |
| Título da fonte: | Vigilância Sanitária em Debate |
| Texto Completo: | https://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/848 |
Resumo: | The dairy sheep industry is recent in Brazil and the production is concentrated in mountainous regions, such as Serra Gaúcha. Ovine milk has a higher solids content compared to bovine milk, thus with higher yield in cheese production. Sheep milk production undergoes seasonal variations and it could be stored until a sufficient quantity is available for processing. The objective of this study was to evaluate microbiological and physicochemical parameters in ovine milk from six different producers under refrigerated storage. Milk was analyzed during seven days, including standard plate count, psychrotrophic bacteria, total and fecal coliforms, Staphylococcus sp. and S. aureus, titratable acidity, pH, water activity, and protein content. The results showed high microbial counts and standard plate counts above those established by legislation for most samples. Psychrotrophic, total and fecal coliforms counts were increased during this period. Titratable acidity increased over the days, while protein content decreased. Samples of milk producer B presented the lowest microbial counts among all tested. Cold storage becomes a short-term alternative when there is a decrease in sheep milk production for dairy processing. Storage period of refrigerated milk must not exceed two days due to deterioration. |
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Quality of ovine raw milk stored under refrigerationQualidade do leite cru ovino armazenado sob refrigeraçãoMilkSheepMicrobiological AnalysisPhysicochemical AnalysisShelf LifeLeiteOvelhaAnálise MicrobiológicaAnálise Físico-químicaVida de PrateleiraThe dairy sheep industry is recent in Brazil and the production is concentrated in mountainous regions, such as Serra Gaúcha. Ovine milk has a higher solids content compared to bovine milk, thus with higher yield in cheese production. Sheep milk production undergoes seasonal variations and it could be stored until a sufficient quantity is available for processing. The objective of this study was to evaluate microbiological and physicochemical parameters in ovine milk from six different producers under refrigerated storage. Milk was analyzed during seven days, including standard plate count, psychrotrophic bacteria, total and fecal coliforms, Staphylococcus sp. and S. aureus, titratable acidity, pH, water activity, and protein content. The results showed high microbial counts and standard plate counts above those established by legislation for most samples. Psychrotrophic, total and fecal coliforms counts were increased during this period. Titratable acidity increased over the days, while protein content decreased. Samples of milk producer B presented the lowest microbial counts among all tested. Cold storage becomes a short-term alternative when there is a decrease in sheep milk production for dairy processing. Storage period of refrigerated milk must not exceed two days due to deterioration.A industrialização de lácteos ovinos é recente no Brasil e a produção é concentrada em regiões de serra, como a Gaúcha. O leite ovino possui alto conteúdo de sólidos comparado ao bovino, com maior rendimento na produção de queijo. A produção deste leite sofre variações sazonais e poderia ser estocado até obter uma quantidade suficiente para processamento. O objetivo deste trabalho foi avaliar parâmetros microbiológicos e físico-químicos no leite proveniente de seis produtores sob armazenamento refrigerado. O leite foi analisado durante sete dias, incluindo contagem padrão em placas (CPP), psicrotróficos, coliformes totais e termotolerantes, Staphylococcus sp. e Staphylococcus aureus, acidez titulável, pH, atividade de água e proteína. Os resultados demonstraram altas contagens microbianas e CPP acima dos limites estabelecidos pela legislação para a maioria das amostras. Contagens de psicrotróficos, coliformes totais e fecais foram elevadas durante este período. A acidez titulável aumentou ao longo dos dias e o conteúdo de proteína diminuiu. As amostras do produtor B apresentaram menores contagens microbianas dentre todas testadas. A estocagem a frio torna-se uma alternativa, a curto prazo, quando há diminuição na produção de leite ovino para beneficiamento a derivados. No entanto, o período de armazenamento refrigerado não deve ultrapassar dois dias, devido à deterioração.Instituto Nacional de Controle de Qualidade em Saúde2017-03-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion"Editor de seção"application/pdfapplication/pdfhttps://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/84810.22239/2317-269X.00848Health Surveillance under Debate: Society, Science & Technology ; Vol. 5 No. 1 (2017): February; 52-59Vigilancia en Salud en Debate: Sociedad, Ciencia y Tecnología; Vol. 5 Núm. 1 (2017): Fevereiro; 52-59Vigil Sanit Debate, Rio de Janeiro; v. 5 n. 1 (2017): Fevereiro; 52-592317-269Xreponame:Vigilância Sanitária em Debateinstname:Fundação Oswaldo Cruz (Fiocruz)instacron:FIOCRUZporenghttps://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/848/356https://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/848/503Copyright (c) 2017 Vigilância Sanitária em Debate: Sociedade, Ciência & Tecnologia (Health Surveillance under Debate: Society, Science & Technology) – Visa em Debatehttps://creativecommons.org/licenses/by-nc-nd/4.0info:eu-repo/semantics/openAccessMunieweg, Félix RomanNespolo, Cássia ReginaPinheiro, Franciele CabralGavião, Emiliane RodriguesPinheiro, Franciane CabralCzarnobay, Marcela2021-09-30T19:07:58Zoai:ojs.visaemdebate.incqs.fiocruz.br:article/848Revistahttps://visaemdebate.incqs.fiocruz.br/index.php/visaemdebatePUBhttps://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/oaiincqs.visaemdebate@fiocruz.br || gisele.neves@fiocruz.br2317-269X2317-269Xopendoar:2021-09-30T19:07:58Vigilância Sanitária em Debate - Fundação Oswaldo Cruz (Fiocruz)false |
| dc.title.none.fl_str_mv |
Quality of ovine raw milk stored under refrigeration Qualidade do leite cru ovino armazenado sob refrigeração |
| title |
Quality of ovine raw milk stored under refrigeration |
| spellingShingle |
Quality of ovine raw milk stored under refrigeration Munieweg, Félix Roman Milk Sheep Microbiological Analysis Physicochemical Analysis Shelf Life Leite Ovelha Análise Microbiológica Análise Físico-química Vida de Prateleira |
| title_short |
Quality of ovine raw milk stored under refrigeration |
| title_full |
Quality of ovine raw milk stored under refrigeration |
| title_fullStr |
Quality of ovine raw milk stored under refrigeration |
| title_full_unstemmed |
Quality of ovine raw milk stored under refrigeration |
| title_sort |
Quality of ovine raw milk stored under refrigeration |
| author |
Munieweg, Félix Roman |
| author_facet |
Munieweg, Félix Roman Nespolo, Cássia Regina Pinheiro, Franciele Cabral Gavião, Emiliane Rodrigues Pinheiro, Franciane Cabral Czarnobay, Marcela |
| author_role |
author |
| author2 |
Nespolo, Cássia Regina Pinheiro, Franciele Cabral Gavião, Emiliane Rodrigues Pinheiro, Franciane Cabral Czarnobay, Marcela |
| author2_role |
author author author author author |
| dc.contributor.author.fl_str_mv |
Munieweg, Félix Roman Nespolo, Cássia Regina Pinheiro, Franciele Cabral Gavião, Emiliane Rodrigues Pinheiro, Franciane Cabral Czarnobay, Marcela |
| dc.subject.por.fl_str_mv |
Milk Sheep Microbiological Analysis Physicochemical Analysis Shelf Life Leite Ovelha Análise Microbiológica Análise Físico-química Vida de Prateleira |
| topic |
Milk Sheep Microbiological Analysis Physicochemical Analysis Shelf Life Leite Ovelha Análise Microbiológica Análise Físico-química Vida de Prateleira |
| description |
The dairy sheep industry is recent in Brazil and the production is concentrated in mountainous regions, such as Serra Gaúcha. Ovine milk has a higher solids content compared to bovine milk, thus with higher yield in cheese production. Sheep milk production undergoes seasonal variations and it could be stored until a sufficient quantity is available for processing. The objective of this study was to evaluate microbiological and physicochemical parameters in ovine milk from six different producers under refrigerated storage. Milk was analyzed during seven days, including standard plate count, psychrotrophic bacteria, total and fecal coliforms, Staphylococcus sp. and S. aureus, titratable acidity, pH, water activity, and protein content. The results showed high microbial counts and standard plate counts above those established by legislation for most samples. Psychrotrophic, total and fecal coliforms counts were increased during this period. Titratable acidity increased over the days, while protein content decreased. Samples of milk producer B presented the lowest microbial counts among all tested. Cold storage becomes a short-term alternative when there is a decrease in sheep milk production for dairy processing. Storage period of refrigerated milk must not exceed two days due to deterioration. |
| publishDate |
2017 |
| dc.date.none.fl_str_mv |
2017-03-07 |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion "Editor de seção" |
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article |
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publishedVersion |
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https://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/848 10.22239/2317-269X.00848 |
| url |
https://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/848 |
| identifier_str_mv |
10.22239/2317-269X.00848 |
| dc.language.iso.fl_str_mv |
por eng |
| language |
por eng |
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https://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/848/356 https://visaemdebate.incqs.fiocruz.br/index.php/visaemdebate/article/view/848/503 |
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https://creativecommons.org/licenses/by-nc-nd/4.0 info:eu-repo/semantics/openAccess |
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https://creativecommons.org/licenses/by-nc-nd/4.0 |
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openAccess |
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application/pdf application/pdf |
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Instituto Nacional de Controle de Qualidade em Saúde |
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Instituto Nacional de Controle de Qualidade em Saúde |
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Health Surveillance under Debate: Society, Science & Technology ; Vol. 5 No. 1 (2017): February; 52-59 Vigilancia en Salud en Debate: Sociedad, Ciencia y Tecnología; Vol. 5 Núm. 1 (2017): Fevereiro; 52-59 Vigil Sanit Debate, Rio de Janeiro; v. 5 n. 1 (2017): Fevereiro; 52-59 2317-269X reponame:Vigilância Sanitária em Debate instname:Fundação Oswaldo Cruz (Fiocruz) instacron:FIOCRUZ |
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Fundação Oswaldo Cruz (Fiocruz) |
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Vigilância Sanitária em Debate |
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Vigilância Sanitária em Debate - Fundação Oswaldo Cruz (Fiocruz) |
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incqs.visaemdebate@fiocruz.br || gisele.neves@fiocruz.br |
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