Rheological characterization of full-fat and low-fat glaze materials for foods
| Autor: | Juan Manuel Peralta, Susana Zorrilla, Barbara Erica del Valle Meza |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Whey protein food.ingredient Materials science Otras Ingenierías y Tecnologías FAT MIMETIC GLAZE MATERIAL Mineralogy INGENIERÍAS Y TECNOLOGÍAS FOOD COATING 01 natural sciences Alimentos y Bebidas Viscosity 0404 agricultural biotechnology food RHEOLOGY Rheology 010608 biotechnology Composite material Rheometry Sunflower oil Glaze 04 agricultural and veterinary sciences Microstructure 040401 food science Creep Food Science |
| Zdroj: | Journal of Food Engineering. 171:57-66 |
| ISSN: | 0260-8774 |
| DOI: | 10.1016/j.jfoodeng.2015.10.012 |
| Popis: | The objective of this work was to perform the rheological characterization of full-fat and low-fat glaze materials used as film-forming fluids. Glaze materials were elaborated with icing sugar, skim milk powder, water, and different contents (0, 3, 6, and 9%) of vegetable fat (sunflower oil and soy lecithin) or microparticulated whey protein as fat mimetic. Rotational rheometry, creep tests, and dynamical rheometry were performed. Yield stress was obtained by direct and indirect methods. Steady shear viscosity was analyzed applying the HerscheleBulkley model. Complex moduli were modeled with a power law equation and the application of Cox-Merz rule was considered. Images were obtained by optical microscopy. Average film thickness values were estimated using a mechanistic mathematical model for a dip-coating process during the draining stage. The results indicated that it may be possible to obtain low-fat glaze materials with rheological properties, microstructure, and film thickness-forming capacities similar to full-fat formulations. Fil: Meza, Barbara Erica del Valle. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina Fil: Peralta, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina Fil: Zorrilla, Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina |
| Databáze: | OpenAIRE |
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