Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/27161
Title: Impregnation of cinnamaldehyde into cassava starch biocomposite films using supercritical fluid technology for the development of food active packaging
Authors: Souza, Ana Cristina de 
Dias, Ana M. A. 
Sousa, Hermínio C. 
Tadini, Carmen C. 
Keywords: Cassava starch; Antimicrobial agent; Supercritical solvent impregnation; Food packaging
Issue Date: 15-Feb-2014
Publisher: Elsevier
Citation: SOUZA, Ana Cristina de [et al.] - Impregnation of cinnamaldehyde into cassava starch biocomposite films using supercritical fluid technology for the development of food active packaging. "Carbohydrate Polymers". ISSN 0144-8617. Vol. 102 (2014) p. 830-837
Abstract: In this work, supercritical solvent impregnation (SSI) has been tested for the incorporation of natural compounds into biocomposite materials for food packaging. Cinnamaldehyde, with proved antimicrobial activity against fungi commonly found in bread products, was successfully impregnated on biocomposite cassava starch based materials using supercritical carbon dioxide as solvent. Different process experimental conditions were tested (pressure, impregnation time and depressurization rate) at a fixed temperature (35 °C) in order to study their influence on the amount of impregnated cinnamaldehyde as well as on the morphology of the films. Results showed that all conditions permitted to impregnate antimicrobial active amounts superior to those previously obtained using conventional incorporation methods. Moreover, a significant decrease of the equilibrium water vapor sorption capacity and water vapor permeability of the films was observed after SSI processing which is a clear advantage of the process, considering the envisaged applications.
URI: http://hdl.handle.net/10316/27161
ISSN: 0144-8617
DOI: 10.1016/j.carbpol.2013.10.082
Rights: openAccess
Appears in Collections:I&D CIEPQPF - Artigos em Revistas Internacionais
FCTUC Eng.Química - Artigos em Revistas Internacionais

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