Flow behavior and physicochemical characterization of peach pulps

• Autores: Muñoz Puntes, Ernesto, Rubio, Luis A., Cabeza, María S.
• Formato: artículo
• Fecha de Publicación: 2012
• Institución: Universidad Nacional de Trujillo
• Repositorio: Revista UNITRU - Scientia Agropecuaria
• Lenguaje: español
• OAI Identifier: oai:ojs.revistas.unitru.edu.pe:article/74
• Enlace del recurso: http://revistas.unitru.edu.pe/index.php/scientiaagrop/article/view/74
• Nivel de acceso: acceso abierto
• Materia: Rheology; peach pulp; physicochemical properties; soluble solids; temperature; power law; pseudoplastic.; reología; pulpa de durazno; propiedades fisicoquímicas; sólidos solubles; temperatura; ley de potencia; pseudoplástico.

Rheological and physicochemical analyses were conducted on nine varieties of peach pulps from Mendoza (Argentina) at a range of soluble solids concentration (12.5 to 28°Brix) and temperatures (30 to 50°C).The rheology of the pulps followed the power law model for all conditions, behaving as pseudoplastic fluids. Rheological: consistency coefficient and flow behavior index, using a rotational type viscometer and physicochemical parameters (methods proposed by AOAC): soluble solids, pH, water content, insoluble solids, acidity and pectin content (refractometric method) were determined in this study. Cluster analysis established two groups (1: Halford, Andross, Astengo, Bowen, Sim’s Cling; 2: Fortuna, Loadel and Palora; Sullivan Cling variety could not be assigned to any group) with significant differences.