Publicación:
Ultrasound assisted acidification of model foods: Kinetics and impact on structure and viscoelastic properties

dc.contributor.author Miano A.C. es_PE
dc.contributor.author da Costa Pereira J. es_PE
dc.contributor.author Miatelo B. es_PE
dc.contributor.author Augusto P.E.D. es_PE
dc.date.accessioned 2024-05-30T23:13:38Z
dc.date.available 2024-05-30T23:13:38Z
dc.date.issued 2017
dc.description This work was supported by the São Paulo Research Foundation (FAPESP, Brazil) [grant numbers 2014/16998-3 (project), 2014/26433-3 (JC Pereira B.Sc. scholarship)]; the National Council for Scientific and Technological Development (CNPq, Brazil) [grant number 401004/2014-7 (project) and B Miatelo B.Sc. scholarship (PIBIC)]; and the “Consejo Nacional de Ciencia, Tecnología e Inovación Tecnológica” (CONCYTEC, Perú) [grant number 272-2015-FONDECYT (A.C. Miano Ph.D. scholarship)].
dc.description.abstract This work aimed to describe the acidification process of two specific model foods using the ultrasound technology, as well as to evaluate the changes on its viscoelasticity properties. For that, two types of model food were used, with similar composition but different structures: natural melon cylinders and restructured melon-agar cylinders. The acidification process was performed using a citric acid solution (0.2% w/w) assisted with and without ultrasound (40 W/L of volumetric power and 20 kHz of frequency) at constant temperature (25 °C). In addition, the stress relaxation analysis was performed on the cylinders in order to evaluate the changes on the viscoelastic properties. As a result, both ultrasound processing and the different structural conformation of the model foods affected the acidification kinetics, being improved by ultrasound. Further, the acidification process with and without ultrasound affected the mechanical properties of both products, reducing their elasticity. The relaxation data could be described by a Maxwell model with two bodies and a residual spring, providing a possible explanation of the association between the mechanical model parameters and the microstructural conformation of both studied cases.
dc.description.sponsorship Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec
dc.identifier.doi https://doi.org/10.1016/j.foodres.2017.07.045
dc.identifier.scopus 2-s2.0-85025162221
dc.identifier.uri https://hdl.handle.net/20.500.12390/811
dc.language.iso eng
dc.publisher Elsevier Ltd
dc.relation.ispartof Food Research International
dc.rights info:eu-repo/semantics/openAccess
dc.subject Volumetric power
dc.subject Acidification es_PE
dc.subject Cylinders (shapes) es_PE
dc.subject Mass transfer es_PE
dc.subject Stress relaxation es_PE
dc.subject Textures es_PE
dc.subject Ultrasonics es_PE
dc.subject Citric acid solution es_PE
dc.subject Constant temperature es_PE
dc.subject Different structure es_PE
dc.subject Relaxation analysis es_PE
dc.subject Structural conformations es_PE
dc.subject Ultrasound technology es_PE
dc.subject Viscoelastic properties es_PE
dc.subject Viscoelasticity es_PE
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#4.04.01
dc.title Ultrasound assisted acidification of model foods: Kinetics and impact on structure and viscoelastic properties
dc.type info:eu-repo/semantics/article
dspace.entity.type Publication
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