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Artículo

Impact of Fat Replacement by Core-shell Microparticles on Set Type Yoghurts. Study of their physicochemical, textural and microstructural properties

Yonaha, Maria Veronica; Martinez, Maria JuliaIcon ; Allievi, Mariana CaludiaIcon ; Coluccio Leskow, FedericoIcon ; Perez, Oscar EdgardoIcon
Fecha de publicación: 04/2019
Editorial: Bentham Science Publishers
Revista: Current Nutrition and Food Science
ISSN: 1573-4013
e-ISSN: 2212-3881
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Alimentos y Bebidas

Resumen

The aim of this study was to investigate the effect of replacing milk fat matter by core-shell microparticles in set type yoghurt. Microparticles were produced by electrostatic deposition of carboxymethylcellulose (CMC) on thermally induced aggregates of β-lactoglobulin (β-lg)n. Laboratory made yoghurts were prepared with: full fat milk (F), low fat milk (L) and low fat milk with CS microparticles (CS). Yoghurts properties (e.g. physicochemical, rheological, textural) were characterized during storage at 4°C. Trials were also conducted in commercial yoghurts taken as references.Water holding capacity (WHC) and elastic modulus (G´) of CS yoghurts resulted similar to commercial yoghurts. Color properties (L*, a*. b*) were slightly altered and showed no significant variation upon time. CS yoghurts behaved as a weak gel as indicated by the higher n values obtained from mechanical spectra and by the lower firmness obtained from texture measurements. Important differences were observed in microstructure. CS yoghurts showed homogeneous aspect with large aggregates and empty spaces. Bacterial growth in CS yoghurts resulted similar to low fat yoghurts. Replacement of milk fat by microparticles would be feasible giving a final product without major differences, at least instrumentally measurable, to commercial yoghurt.
Palabras clave: CORE-SHELL MICROPARTICLES , FAT REPLACERS , YOGHURT , BETA-LACTOGLOBULIN
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/121812
URL: http://www.eurekaselect.com/161835/article
DOI: http://dx.doi.org/10.2174/1573401314666180503154304
Colecciones
Articulos(IQUIBICEN)
Articulos de INSTITUTO DE QUIMICA BIOLOGICA DE LA FACULTAD DE CS. EXACTAS Y NATURALES
Articulos(OCA CIUDAD UNIVERSITARIA)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Citación
Yonaha, Maria Veronica; Martinez, Maria Julia; Allievi, Mariana Caludia; Coluccio Leskow, Federico; Perez, Oscar Edgardo; Impact of Fat Replacement by Core-shell Microparticles on Set Type Yoghurts. Study of their physicochemical, textural and microstructural properties; Bentham Science Publishers; Current Nutrition and Food Science; 15; 1; 4-2019; 61-71
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