Glycosylation, denaturation, and aggregation of soy proteins in defatted soy flakes flour: Influence of thermal and homogenization treatments

This paper provides a systematic study of the impact of different thermal treatments (62 ± 2°C, without and with relative humidity control, 79%) on soy protein in defatted soy flour and their aqueous dispersions. The effect of dispersing treatments (magnetic stirring, high-speed and highpressurehomo...

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Detalles Bibliográficos
Autores: Ingrassia, Romina, Palazolo, Gonzalo Gastón, Risso, Patricia Hilda, Wagner, Jorge Ricardo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/46861
Acceso en línea:http://hdl.handle.net/11336/46861
Access Level:acceso abierto
Palabra clave:Defatted Soy Flakes Flour
Denaturation
Homogenization
Glycosylation
Protein Aggregation
Thermal Treatment
https://purl.org/becyt/ford/2.11
https://purl.org/becyt/ford/2
Descripción
Sumario:This paper provides a systematic study of the impact of different thermal treatments (62 ± 2°C, without and with relative humidity control, 79%) on soy protein in defatted soy flour and their aqueous dispersions. The effect of dispersing treatments (magnetic stirring, high-speed and highpressurehomogenization) on dispersions also was assessed. Changes in protein solubility (water and 0.2 g KOH/100 g solution), apparent-reactive lysine content, urease and trypsin inhibitor activities, protein denaturation and FTIR spectra were studied. Glycosylation, aggregation and denaturation of storage and biologically active soy proteins were observed in different degree, being mainly promoted by the control of relative humidity and dispersibility of the sample.