- -

Dynamic measurement of dielectric properties of food snack pellets during microwave expansion

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

Dynamic measurement of dielectric properties of food snack pellets during microwave expansion

Show simple item record

Files in this item

dc.contributor.author Gutiérrez Cano, José Daniel es_ES
dc.contributor.author Catalá Civera, José Manuel es_ES
dc.contributor.author Bows, John es_ES
dc.contributor.author Penaranda-Foix, Felipe L. es_ES
dc.date.accessioned 2020-10-09T03:31:16Z
dc.date.available 2020-10-09T03:31:16Z
dc.date.issued 2017-06 es_ES
dc.identifier.issn 0260-8774 es_ES
dc.identifier.uri http://hdl.handle.net/10251/151438
dc.description.abstract [EN] The in situ dielectric properties of a starch-based food pellet have been measured during microwave expansion. A dual-mode cylindrical cavity allowed simultaneous microwave heating and dielectric measurements of a single pellet inside a quartz tube, ensuring uniform heating during microwave processing. The cavity included additional measurement devices to correlate the dielectric properties with the main parameters of the expansion process, such as temperature, expansion time, pellet volume and absorbed power. A commercially available snack food pellet was Used as the test material for expansion experiments. Results indicated that dielectric constant (epsilon') and loss factor (epsilon") increased during heating, reaching a threshold value of epsilon' = 12.5 and epsilon" = 5.2, around a temperature of 115 degrees C when the material expanded and the dielectric properties dropped abruptly due to the loss of water content and the increase in size. This measurement procedure may provide useful material science information to improve the overall design of starch-based food pellets processed by microwaves. (C) 2017 Elsevier Ltd. All rights reserved. es_ES
dc.description.sponsorship The work presented in this paper was funded by PepsiCo R&D. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Journal of Food Engineering es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Food pellets es_ES
dc.subject Microwave heating es_ES
dc.subject Microwave expansion es_ES
dc.subject Foaming es_ES
dc.subject Dielectric properties es_ES
dc.subject Cavity perturbation method es_ES
dc.subject.classification TEORIA DE LA SEÑAL Y COMUNICACIONES es_ES
dc.title Dynamic measurement of dielectric properties of food snack pellets during microwave expansion es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.jfoodeng.2017.01.021 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Comunicaciones - Departament de Comunicacions es_ES
dc.description.bibliographicCitation Gutiérrez Cano, JD.; Catalá Civera, JM.; Bows, J.; Penaranda-Foix, FL. (2017). Dynamic measurement of dielectric properties of food snack pellets during microwave expansion. Journal of Food Engineering. 202:1-8. https://doi.org/10.1016/j.jfoodeng.2017.01.021 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.jfoodeng.2017.01.021 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 8 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 202 es_ES
dc.relation.pasarela S\325831 es_ES
dc.contributor.funder PepsiCo es_ES


This item appears in the following Collection(s)

Show simple item record