Beta-lactoglobulin polymorphism does not affect physico-chemical characteristics and milk stability

Detalhes bibliográficos
Autor(a) principal: Botaro, Bruno Garcia
Data de Publicação: 2007
Outros Autores: Lima, Ygor Vinícius Real de, Aquino, Adriana Augusto, Fernandes, Raquel Helena Rocha, Garcia, José Fernando, Santos, Marcos Veiga dos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/7626
Resumo: The objective of this study was to evaluate the effect of beta-lactoglobulin polymorphism, breed and seasonality on physico-chemical characteristics and stability of bovine milk. Six Holstein-Zebu (H-Z) and five Holstein dairy herds were selected, of which 660 Holstein and 293 crossbred Holstein-Zebu milk and blood samples were collected, adding up 953 samples, distributed in two collecting periods at rainy and two at dry seasons. Each milk sample was analyzed for titratable acidity, pH, freezing point and milk ethanol stability, at the following ethanol concentrations: 70, 76, 80 and 84ºGL. Individual blood samples were submitted to polymerase chain reaction (PCR) for the determination of beta-lactoglobulin polymorphism. No effect of beta-lactoglobulin polymorphism was observed in physico-chemical characteristics of milk, in both studied breed. Breed effect for Holstein and H-Z, respectively, was observed on titratable acidity (16.16 and 17.07°D, while effect of seasonality (for rainy and dry seasons, respectively) was also observed on freezing point (-0.5411 and -0.5376°H). Effects of breed and seasonality on milk stability were observed (Holstein-Zebu milk was less stable on dry season), however, no effect of beta-lactoglobulin on milk stability was observed.
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spelling Beta-lactoglobulin polymorphism does not affect physico-chemical characteristics and milk stabilityPolimorfismo da beta-lactoglobulina não afeta as características físico-químicas e a estabilidade do leite bovinodairy cow; genetic variants; milk physico-chemical properties; ethanol stability testvaca leiteira; variante genética; propriedades físico-químicas do leite; prova de estabilidade ao etanolThe objective of this study was to evaluate the effect of beta-lactoglobulin polymorphism, breed and seasonality on physico-chemical characteristics and stability of bovine milk. Six Holstein-Zebu (H-Z) and five Holstein dairy herds were selected, of which 660 Holstein and 293 crossbred Holstein-Zebu milk and blood samples were collected, adding up 953 samples, distributed in two collecting periods at rainy and two at dry seasons. Each milk sample was analyzed for titratable acidity, pH, freezing point and milk ethanol stability, at the following ethanol concentrations: 70, 76, 80 and 84ºGL. Individual blood samples were submitted to polymerase chain reaction (PCR) for the determination of beta-lactoglobulin polymorphism. No effect of beta-lactoglobulin polymorphism was observed in physico-chemical characteristics of milk, in both studied breed. Breed effect for Holstein and H-Z, respectively, was observed on titratable acidity (16.16 and 17.07°D, while effect of seasonality (for rainy and dry seasons, respectively) was also observed on freezing point (-0.5411 and -0.5376°H). Effects of breed and seasonality on milk stability were observed (Holstein-Zebu milk was less stable on dry season), however, no effect of beta-lactoglobulin on milk stability was observed.O objetivo deste trabalho foi avaliar o efeito do polimorfismo genético da beta-lactoglobulina, da raça e da sazonalidade sobre as características físico-químicas e estabilidade do leite bovino. Foram selecionados 5 rebanhos da raça Holandesa e 6 da Girolando. Amostras de leite e sangue foram coletadas de 660 vacas Holandesas e 293 Girolandos, num total de 953 amostras, obtidas em duas coletas na estação seca e duas na estação chuvosa. As amostras de leite foram submetidas à análise de acidez titulável, pH, crioscopia, e ao teste de estabilidade ao etanol (70, 76, 80 e 84ºGL). As amostras de sangue foram submetidas à reação em cadeia de polimerase, para determinação do polimorfismo da beta-lactoglobulina em ambas as raças estudadas. Não houve efeito do polimorfismo da beta-lactoglobulina sobre as características físico-químicas do leite. Observou-se efeito de raça (Holandesa e Girolando, respectivamente) sobre a acidez titulável (16,16 e 17,07°D), e da sazonalidade (estações chuvosa e seca, respectivamente) sobre a crioscopia (-0,5411 e -0,5376°H). Nas condições do estudo, observou-se efeito de raça e sazonalidade sobre a estabilidade do leite, com maior instabilidade do leite de Girolando, durante a estação seca. Não houve efeito do polimorfismo da beta-lactoglobulina sobre essa característica.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraBotaro, Bruno GarciaLima, Ygor Vinícius Real deAquino, Adriana AugustoFernandes, Raquel Helena RochaGarcia, José FernandoSantos, Marcos Veiga dos2007-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7626Pesquisa Agropecuaria Brasileira; v.42, n.5, maio 2007; 747-753Pesquisa Agropecuária Brasileira; v.42, n.5, maio 2007; 747-7531678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7626/4545info:eu-repo/semantics/openAccess2010-09-24T12:26:03Zoai:ojs.seer.sct.embrapa.br:article/7626Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-09-24T12:26:03Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Beta-lactoglobulin polymorphism does not affect physico-chemical characteristics and milk stability
Polimorfismo da beta-lactoglobulina não afeta as características físico-químicas e a estabilidade do leite bovino
title Beta-lactoglobulin polymorphism does not affect physico-chemical characteristics and milk stability
spellingShingle Beta-lactoglobulin polymorphism does not affect physico-chemical characteristics and milk stability
Botaro, Bruno Garcia
dairy cow; genetic variants; milk physico-chemical properties; ethanol stability test
vaca leiteira; variante genética; propriedades físico-químicas do leite; prova de estabilidade ao etanol
title_short Beta-lactoglobulin polymorphism does not affect physico-chemical characteristics and milk stability
title_full Beta-lactoglobulin polymorphism does not affect physico-chemical characteristics and milk stability
title_fullStr Beta-lactoglobulin polymorphism does not affect physico-chemical characteristics and milk stability
title_full_unstemmed Beta-lactoglobulin polymorphism does not affect physico-chemical characteristics and milk stability
title_sort Beta-lactoglobulin polymorphism does not affect physico-chemical characteristics and milk stability
author Botaro, Bruno Garcia
author_facet Botaro, Bruno Garcia
Lima, Ygor Vinícius Real de
Aquino, Adriana Augusto
Fernandes, Raquel Helena Rocha
Garcia, José Fernando
Santos, Marcos Veiga dos
author_role author
author2 Lima, Ygor Vinícius Real de
Aquino, Adriana Augusto
Fernandes, Raquel Helena Rocha
Garcia, José Fernando
Santos, Marcos Veiga dos
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Botaro, Bruno Garcia
Lima, Ygor Vinícius Real de
Aquino, Adriana Augusto
Fernandes, Raquel Helena Rocha
Garcia, José Fernando
Santos, Marcos Veiga dos
dc.subject.por.fl_str_mv dairy cow; genetic variants; milk physico-chemical properties; ethanol stability test
vaca leiteira; variante genética; propriedades físico-químicas do leite; prova de estabilidade ao etanol
topic dairy cow; genetic variants; milk physico-chemical properties; ethanol stability test
vaca leiteira; variante genética; propriedades físico-químicas do leite; prova de estabilidade ao etanol
description The objective of this study was to evaluate the effect of beta-lactoglobulin polymorphism, breed and seasonality on physico-chemical characteristics and stability of bovine milk. Six Holstein-Zebu (H-Z) and five Holstein dairy herds were selected, of which 660 Holstein and 293 crossbred Holstein-Zebu milk and blood samples were collected, adding up 953 samples, distributed in two collecting periods at rainy and two at dry seasons. Each milk sample was analyzed for titratable acidity, pH, freezing point and milk ethanol stability, at the following ethanol concentrations: 70, 76, 80 and 84ºGL. Individual blood samples were submitted to polymerase chain reaction (PCR) for the determination of beta-lactoglobulin polymorphism. No effect of beta-lactoglobulin polymorphism was observed in physico-chemical characteristics of milk, in both studied breed. Breed effect for Holstein and H-Z, respectively, was observed on titratable acidity (16.16 and 17.07°D, while effect of seasonality (for rainy and dry seasons, respectively) was also observed on freezing point (-0.5411 and -0.5376°H). Effects of breed and seasonality on milk stability were observed (Holstein-Zebu milk was less stable on dry season), however, no effect of beta-lactoglobulin on milk stability was observed.
publishDate 2007
dc.date.none.fl_str_mv 2007-05-01
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/7626
url https://seer.sct.embrapa.br/index.php/pab/article/view/7626
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/7626/4545
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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.42, n.5, maio 2007; 747-753
Pesquisa Agropecuária Brasileira; v.42, n.5, maio 2007; 747-753
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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