Shelf‐life extension of multi‐vegetables smoothies by high‐pressure processing compared with thermal treatment. Part I: Microbial and enzyme inhibition, antioxidant status, and physical stability
Visualitza/Obre
Autor/a
Hurtado, Adriana
Picouet, Pierre
Bañón, Sancho
Ros, José María
Data de publicació
2019-07-31ISSN
0145-8892
Resum
Consumer demand for minimally processed food products based on fruits and vegetables is associated with their “fresh‐like” qualities and a desire for convenience. Smoothies could help meet these needs and contribute to increasing fruit and vegetable intake. The first part of this study assesses microbial and enzyme inactivation, antioxidant status, and physical stability of a vegetable smoothie (apple, carrot, zucchini, pumpkin, and leek) stabilized (for up to 28 days at 4°C) by high‐pressure processing (HPP) (350 MPa/5 min/10°C). Compared with mild heating (85°C/7 min), HPP ensured microbial quality (aerobic mesophilic and psychotropic bacteria, yeasts and molds), inhibited peroxidase, and slightly enhanced polyphenol oxidase and pectinmethylesterase enzymes. Consequently, the pressurized smoothies underwent earlier clarification and oxidation as reflected in their values of turbidity, browning index, viscosity, and antioxidant capacity. Therefore, the pressurizing conditions and/or raw material selection need to be improved to achieve better stabilization by HPP.
Tipus de document
Article
Versió del document
Versió acceptada
Llengua
English
Matèries (CDU)
663/664 - Aliments i nutrició. Enologia. Olis. Greixos
Pàgines
35
Publicat per
Wiley
Publicat a
Journal of Food Processing and Preservation
Citació
Hurtado, A., Dolors Guàrdia, M., Picouet, P., Jofré, A., Bañón, S. and Ros, J. M. Hurtado, Adriana, Maria Dolors Guàrdia, Pierre Picouet, Anna Jofré, Sancho Bañón, and José María Ros. 2019. "Shelf‐Life Extension Of Multi‐Vegetables Smoothies By High‐Pressure Processing Compared With Thermal Treatment. Part I: Microbial And Enzyme Inhibition, Antioxidant Status, And Physical Stability". Journal Of Food Processing And Preservation 43 (10). Wiley. doi:10.1111/jfpp.14139.
Número de l'acord de la subvenció
INIA/Programa Nacional de Proyectos de Investigación Fundamental/INIA RTA2011‐00038‐C02‐01/ES/Calidad y estabilidad de productos elaborados a base de fruta mínimamente transformada mediante nuevos métodos de procesado/FRUITECH
INIA/Programa Nacional de Proyectos de Investigación Fundamental/INIA RTA2011‐00038‐C02‐02/ES/Calidad y estabilidad de productos elaborados a base de fruta mínimamente transformada mediante nuevos métodos de procesado/FRUITECH
Programa
Qualitat i Tecnologia Alimentària
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