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Título: | The enrichment of mashed potatoes with extra virgin olive oil: the effects on textural, physical, structural and sensory characteristics |
Autor: | Álvarez, M. Dolores CSIC ORCID ; Canet, Wenceslao CSIC; Jiménez, M. José CSIC; Fernández, Cristina CSIC | Palabras clave: | Microstructure Mashed potatoes Texture profile analysis (TPA) Sensory attributes Freezing Extra virgin olive oil |
Fecha de publicación: | 2017 | Editor: | Nova Science Publishers | Citación: | Olive Oil: Sensory Characteristics, Composition and Importance in Human Health: 109-147 (2017) | Resumen: | Growing awareness of the link between diet and health is fast changing consumer habits, so that there has been increasing demand for foods with health-enhancing properties. Extra virgin olive oil (EVOO) has important nutritional characteristics linked to its biophenol content and has very important antioxidant properties. The aim of this chapter was to study the effect of the addition of EVOO on instrumental textural properties, sensory texture profile analysis (TPA), and microstructure of fresh and frozen/thawed mashed potatoes formulated without and with added cryoprotectants (kappa-carrageenan [κ-C] and xanthan gum [XG]). EVOO behaves as soft filler due to droplet aggregates, whereas addition of cryoprotectants led to more structured mashed potatoes (MP) thanks to the gelling properties of κ-C. Both the percentage of added EVOO and processing had a much less significant effect on the texture of the MP containing κ-C and XG, evidencing the ability of this biopolymer blend to impart freeze/thaw stability. All samples with added EVOO were perceived as significantly softer and creamier than the samples without EVOO, whereas all MP samples with added cryoprotectants were perceived as significantly thicker and creamier than those without hydrocolloids. The results have shown that although instrumental textural data were able to explain differences in consistency perceived, structural information is needed to understand differences in creaminess. Back extrusion test is recommended to industry as practical quality control tool in the commercial production of MP with added EVOO. | URI: | http://hdl.handle.net/10261/172637 | Identificadores: | isbn: 978-1-53612-563-4 |
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enrichcharact.pdf | 1,41 MB | Adobe PDF | Visualizar/Abrir |
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