Hydration properties of soybean protein isolates

Hydration properties of soybean isolates with different processing conditions (heat treatments, pH and protein concentrations) were studied. Degree of denaturation, solubility in water, in 0.2mol/L NaCl, and in media of different sodium dodecyl sulfate concentrations, viscosity and water imbibing ca...

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Autores principales: Remondetto, Gabriel, Añón, María Cristina, González, Rolando José
Formato: Articulo
Lenguaje:Inglés
Publicado: 2001
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/36652
http://www.scielo.br/pdf/babt/v44n4/a14v44n4.pdf
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id I19-R120-10915-36652
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
hydration properties
protein isolates functional properties
soybean proteins
spellingShingle Ciencias Exactas
hydration properties
protein isolates functional properties
soybean proteins
Remondetto, Gabriel
Añón, María Cristina
González, Rolando José
Hydration properties of soybean protein isolates
topic_facet Ciencias Exactas
hydration properties
protein isolates functional properties
soybean proteins
description Hydration properties of soybean isolates with different processing conditions (heat treatments, pH and protein concentrations) were studied. Degree of denaturation, solubility in water, in 0.2mol/L NaCl, and in media of different sodium dodecyl sulfate concentrations, viscosity and water imbibing capacity of the different samples were determinated and correlated. Treatments at temperatures higher than 80°C denatured US and 7S proteins, leading to exposure of'Hydrophobie groups, which produced insoluble aggregates either in water or in high ionic strength media. These isolates possessed high water imbibing capacities and gave rise to viscous dispersions. Significant correlations were obtained between hydration properties and the "m" coefficient as calculated by a power law equation relating viscosity with the protein concentration of the dispersion. This "m" coefficient also correlated with the denaturation enthalpy of the protein isolates. On the basis of these results, it might be suggested that the "m" coefficient - dependent of the hydrodynamic behaviour of the particles - was a good estimator of the degree of protein denaturation.
format Articulo
Articulo
author Remondetto, Gabriel
Añón, María Cristina
González, Rolando José
author_facet Remondetto, Gabriel
Añón, María Cristina
González, Rolando José
author_sort Remondetto, Gabriel
title Hydration properties of soybean protein isolates
title_short Hydration properties of soybean protein isolates
title_full Hydration properties of soybean protein isolates
title_fullStr Hydration properties of soybean protein isolates
title_full_unstemmed Hydration properties of soybean protein isolates
title_sort hydration properties of soybean protein isolates
publishDate 2001
url http://sedici.unlp.edu.ar/handle/10915/36652
http://www.scielo.br/pdf/babt/v44n4/a14v44n4.pdf
work_keys_str_mv AT remondettogabriel hydrationpropertiesofsoybeanproteinisolates
AT anonmariacristina hydrationpropertiesofsoybeanproteinisolates
AT gonzalezrolandojose hydrationpropertiesofsoybeanproteinisolates
bdutipo_str Repositorios
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