Comparative protein composition analysis of goat milk produced by the Alpine and Saanen breeds in northeastern Brazil and related antibacterial activities.

The protein composition of goat milk differs between goat breeds and could present regional trends. The aim of this study was to comparatively analyze the protein composition of goat milk produced by the Alpine and Saanen breeds in northeastern Brazil and to evaluate the antibacterial activity of it...

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Autores principales:	Whyara Karoline Almeida da Costa, Evandro Leite de Souza, Edvaldo Mesquita Beltrão-Filho, Gracy Kelly Vieira Vasconcelos, Tatiane Santi-Gadelha, Carlos Alberto de Almeida Gadelha, Octavio Luiz Franco, Rita de Cássia Ramos do Egypto Queiroga, Marciane Magnani
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/bbf5179e2ae6497c87debab3d4372007
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spelling	oai:doaj.org-article:bbf5179e2ae6497c87debab3d43720072021-11-18T08:25:49ZComparative protein composition analysis of goat milk produced by the Alpine and Saanen breeds in northeastern Brazil and related antibacterial activities.1932-620310.1371/journal.pone.0093361https://doaj.org/article/bbf5179e2ae6497c87debab3d43720072014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24675996/?tool=EBIhttps://doaj.org/toc/1932-6203The protein composition of goat milk differs between goat breeds and could present regional trends. The aim of this study was to comparatively analyze the protein composition of goat milk produced by the Alpine and Saanen breeds in northeastern Brazil and to evaluate the antibacterial activity of its protein fractions. SDS-PAGE, 2-DE electrophoresis and RP-HPLC analyses revealed the absence of αs1-casein in the milk of both breeds and no differences between the αs2-casein, β-casein, β-lactoglobulin and α-lactalbumin profiles. The amounts of soluble proteins and β-casein hydrolysis residues were higher in Saanen milk. Only the protein fraction containing the largest amounts of casein (F60-90%) inhibited bacterial growth, with MIC values between 50 and 100 mg/mL. This study describe for the first time three important points about the goat milk protein of two Brazilian goat breeders: absence of α-s1 casein in the protein profile, differences between the milk protein composition produced by goats of Alpine and Saanen breeders and antibacterial activity of unbroken proteins (casein-rich fraction) present in these milk.Whyara Karoline Almeida da CostaEvandro Leite de SouzaEdvaldo Mesquita Beltrão-FilhoGracy Kelly Vieira VasconcelosTatiane Santi-GadelhaCarlos Alberto de Almeida GadelhaOctavio Luiz FrancoRita de Cássia Ramos do Egypto QueirogaMarciane MagnaniPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 3, p e93361 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Whyara Karoline Almeida da Costa Evandro Leite de Souza Edvaldo Mesquita Beltrão-Filho Gracy Kelly Vieira Vasconcelos Tatiane Santi-Gadelha Carlos Alberto de Almeida Gadelha Octavio Luiz Franco Rita de Cássia Ramos do Egypto Queiroga Marciane Magnani Comparative protein composition analysis of goat milk produced by the Alpine and Saanen breeds in northeastern Brazil and related antibacterial activities.
description	The protein composition of goat milk differs between goat breeds and could present regional trends. The aim of this study was to comparatively analyze the protein composition of goat milk produced by the Alpine and Saanen breeds in northeastern Brazil and to evaluate the antibacterial activity of its protein fractions. SDS-PAGE, 2-DE electrophoresis and RP-HPLC analyses revealed the absence of αs1-casein in the milk of both breeds and no differences between the αs2-casein, β-casein, β-lactoglobulin and α-lactalbumin profiles. The amounts of soluble proteins and β-casein hydrolysis residues were higher in Saanen milk. Only the protein fraction containing the largest amounts of casein (F60-90%) inhibited bacterial growth, with MIC values between 50 and 100 mg/mL. This study describe for the first time three important points about the goat milk protein of two Brazilian goat breeders: absence of α-s1 casein in the protein profile, differences between the milk protein composition produced by goats of Alpine and Saanen breeders and antibacterial activity of unbroken proteins (casein-rich fraction) present in these milk.
format	article
author	Whyara Karoline Almeida da Costa Evandro Leite de Souza Edvaldo Mesquita Beltrão-Filho Gracy Kelly Vieira Vasconcelos Tatiane Santi-Gadelha Carlos Alberto de Almeida Gadelha Octavio Luiz Franco Rita de Cássia Ramos do Egypto Queiroga Marciane Magnani
author_facet	Whyara Karoline Almeida da Costa Evandro Leite de Souza Edvaldo Mesquita Beltrão-Filho Gracy Kelly Vieira Vasconcelos Tatiane Santi-Gadelha Carlos Alberto de Almeida Gadelha Octavio Luiz Franco Rita de Cássia Ramos do Egypto Queiroga Marciane Magnani
author_sort	Whyara Karoline Almeida da Costa
title	Comparative protein composition analysis of goat milk produced by the Alpine and Saanen breeds in northeastern Brazil and related antibacterial activities.
title_short	Comparative protein composition analysis of goat milk produced by the Alpine and Saanen breeds in northeastern Brazil and related antibacterial activities.
title_full	Comparative protein composition analysis of goat milk produced by the Alpine and Saanen breeds in northeastern Brazil and related antibacterial activities.
title_fullStr	Comparative protein composition analysis of goat milk produced by the Alpine and Saanen breeds in northeastern Brazil and related antibacterial activities.
title_full_unstemmed	Comparative protein composition analysis of goat milk produced by the Alpine and Saanen breeds in northeastern Brazil and related antibacterial activities.
title_sort	comparative protein composition analysis of goat milk produced by the alpine and saanen breeds in northeastern brazil and related antibacterial activities.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/bbf5179e2ae6497c87debab3d4372007
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Comparative protein composition analysis of goat milk produced by the Alpine and Saanen breeds in northeastern Brazil and related antibacterial activities.

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