Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/33713
metadata.artigo.dc.title: Infrared (IR) thermography applied in the freeze-drying of gelatin model solutions added with ethanol and carrier agents
metadata.artigo.dc.creator: Gonçalves, Bárbara Jordana
Lago, Amanda Maria Teixeira
Machado, Amanda Alvarenga
Giarola, Tales Márcio de Oliveira
Prado, Mônica Elisabeth Torres
Resende, Jaime Vilela de
metadata.artigo.dc.subject: Infrared thermography
Gelatin model solutions - Freeze-drying
Maltodextrin
Termografia Infravermelha
Soluções de modelo de gelatina - Liofilização
Maltodextrina
metadata.artigo.dc.publisher: Elsevier
metadata.artigo.dc.date.issued: Mar-2018
metadata.artigo.dc.identifier.citation: GONÇALVES, B. J. et al. Infrared (IR) thermography applied in the freeze-drying of gelatin model solutions added with ethanol and carrier agents. Journal of Food Engineering, Essex, v. 221, p. 77-87, Mar. 2018.
metadata.artigo.dc.description.abstract: The objective of this study was to evaluate the heat transfer processes during the freeze-drying of gelatin model solutions (GMS) with ethanol and carrier agents, and to understand the relation of the temperature profiles with gel thermorheological behaviors and microstructural properties of the freeze-dried systems. Temperature variations caused by phase transitions were detected using an infrared thermograph camera. Temperature profiles have shown that in systems of GMS that use ethanol with or without sucrose, water removal has occurred more rapidly and at lower temperatures. The activation energies determined were reduced with the addition of sucrose. Shrinkage measurements and photomicrographs allowed visualization of the cavities left after the sublimation of the ice and showed the additive effects on the water removal rate. The lowest shrinkage values were obtained for GMS using ethanol with or without sucrose, and the highest shrinkage values were obtained for GMS using maltodextrin, which presented amorphous structures.
metadata.artigo.dc.identifier.uri: https://www.sciencedirect.com/science/article/pii/S0260877417304296#!
http://repositorio.ufla.br/jspui/handle/1/33713
metadata.artigo.dc.language: en_US
Appears in Collections:DCA - Artigos publicados em periódicos

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.