Milk protein suspensions enriched with three essential minerals: Physicochemical characterization and aggregation induced by a novel enzymatic pool

Structural changes of casein micelles and their aggregation induced by a novel enzymatic pool isolatedfrom Bacillus spp. in the presence of calcium, magnesium or zinc were investigated. The effect of cationson milk protein structure was studied using fluorescence and dynamic light scattering. In the...

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Autores principales:	Lombardi, Julia, Spelzini, Darío, Folmer Côrrea, Ana Paula, Brandelli, Adriano, Risso, Patricia Hilda, Boeris, Valeria
Formato:	article artículo publishedVersion
Lenguaje:	Inglés
Publicado:	Elsevier 2018
Materias:	Bacterial Enzyme Casein Micelle Aggregation Structural Changes Divalent Cations
Acceso en línea:	http://hdl.handle.net/2133/11426 http://hdl.handle.net/2133/11426
Aporte de:	Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR) de Universidad Nacional de Rosario

id	I15-R121-2133-11426
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institution	Universidad Nacional de Rosario
institution_str	I-15
repository_str	R-121
collection	Repositorio Hipermedial de la Universidad Nacional de Rosario (UNR)
language	Inglés
orig_language_str_mv	eng
topic	Bacterial Enzyme Casein Micelle Aggregation Structural Changes Divalent Cations
spellingShingle	Bacterial Enzyme Casein Micelle Aggregation Structural Changes Divalent Cations Lombardi, Julia Spelzini, Darío Folmer Côrrea, Ana Paula Brandelli, Adriano Risso, Patricia Hilda Boeris, Valeria Milk protein suspensions enriched with three essential minerals: Physicochemical characterization and aggregation induced by a novel enzymatic pool
topic_facet	Bacterial Enzyme Casein Micelle Aggregation Structural Changes Divalent Cations
description	Structural changes of casein micelles and their aggregation induced by a novel enzymatic pool isolatedfrom Bacillus spp. in the presence of calcium, magnesium or zinc were investigated. The effect of cationson milk protein structure was studied using fluorescence and dynamic light scattering. In the presenceof cations, milk protein structure rearrangements and larger casein micelle size were observed. Theinteraction of milk proteins with zinc appears to be of a different nature than that with calcium ormagnesium. Under the experimental conditions assayed, the affinity of each cation for some groupspresent in milk proteins seems to play an important role, besides electrostatic interaction. On the otherhand, the lowest aggregation times were achieved at the highest calcium and zinc concentrations (15 mMand 0.25 mM, respectively). The study found that the faster the aggregation of casein micelles, the lesscompact the gel matrix obtained. Cation concentrations affected milk protein aggregation kinetics andthe structure of the aggregates formed.
format	article artículo publishedVersion
author	Lombardi, Julia Spelzini, Darío Folmer Côrrea, Ana Paula Brandelli, Adriano Risso, Patricia Hilda Boeris, Valeria
author_facet	Lombardi, Julia Spelzini, Darío Folmer Côrrea, Ana Paula Brandelli, Adriano Risso, Patricia Hilda Boeris, Valeria
author_sort	Lombardi, Julia
title	Milk protein suspensions enriched with three essential minerals: Physicochemical characterization and aggregation induced by a novel enzymatic pool
title_short	Milk protein suspensions enriched with three essential minerals: Physicochemical characterization and aggregation induced by a novel enzymatic pool
title_full	Milk protein suspensions enriched with three essential minerals: Physicochemical characterization and aggregation induced by a novel enzymatic pool
title_fullStr	Milk protein suspensions enriched with three essential minerals: Physicochemical characterization and aggregation induced by a novel enzymatic pool
title_full_unstemmed	Milk protein suspensions enriched with three essential minerals: Physicochemical characterization and aggregation induced by a novel enzymatic pool
title_sort	milk protein suspensions enriched with three essential minerals: physicochemical characterization and aggregation induced by a novel enzymatic pool
publisher	Elsevier
publishDate	2018
url	http://hdl.handle.net/2133/11426 http://hdl.handle.net/2133/11426
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bdutipo_str	Repositorios
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Milk protein suspensions enriched with three essential minerals: Physicochemical characterization and aggregation induced by a novel enzymatic pool

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