Functional Properties of Plasticized Bio-Based Poly(Lactic Acid)_Poly(Hydroxybutyrate) (PLA_PHB) Films for Active Food Packaging

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Título: Functional Properties of Plasticized Bio-Based Poly(Lactic Acid)_Poly(Hydroxybutyrate) (PLA_PHB) Films for Active Food Packaging
Autor/es: Burgos Bolufer, Nuria | Armentano, Ilaria | Fortunati, Elena | Dominici, Franco | Luzi, Francesca | Fiori, Stefano | Cristofaro, Francesco | Visai, Livia | Jiménez, Alfonso | Kenny, José M.
Grupo/s de investigación o GITE: Análisis de Polímeros y Nanomateriales
Centro, Departamento o Servicio: Universidad de Alicante. Departamento de Química Analítica, Nutrición y Bromatología
Palabras clave: Bio-films | Active packaging | Lactic acid oligomers | Carvacrol | Migration | Antibacterial properties
Área/s de conocimiento: Química Analítica
Fecha de publicación: abr-2017
Editor: Springer Science+Business Media New York
Cita bibliográfica: Food and Bioprocess Technology. 2017, 10(4): 770-780. doi:10.1007/s11947-016-1846-3
Resumen: Fully bio-based and biodegradable active films based on poly(lactic acid) (PLA) blended with poly(3-hydroxybutyrate) (PHB) and incorporating lactic acid oligomers (OLA) as plasticizers and carvacrol as active agent were extruded and fully characterized in their functional properties for antimicrobial active packaging. PLA_PHB films showed good barrier to water vapor, while the resistance to oxygen diffusion decreased with the addition of OLA and carvacrol. Their overall migration in aqueous food simulant was determined and no significant changes were observed by the addition of carvacrol and OLA to the PLA_PHB formulations. However, the effect of both additives in fatty food simulant can be considered a positive feature for the potential protection of foodstuff with high fat content. Moreover, the antioxidant and antimicrobial activities of the proposed formulations increased by the presence of carvacrol, with enhanced activity against Staphylococcus aureus if compared to Escherichia coli at short and long incubation times. These results underlined the specific antimicrobial properties of these bio-films suggesting their applicability in active food packaging.
Patrocinador/es: This work was funded by the SAMSUNG GRO PROGRAMME 2012 and the Spanish Ministry of Economy and Competitiveness (Ref. MAT2014-59242-C2-2-R and MAT2014-55778-REDT).
URI: http://hdl.handle.net/10045/66414
ISSN: 1935-5130 (Print) | 1935-5149 (Online)
DOI: 10.1007/s11947-016-1846-3
Idioma: eng
Tipo: info:eu-repo/semantics/article
Derechos: © Springer Science+Business Media New York 2017. The final publication is available at Springer via http://dx.doi.org/10.1007/s11947-016-1846-3
Revisión científica: si
Versión del editor: http://dx.doi.org/10.1007/s11947-016-1846-3
Aparece en las colecciones:INV - APN - Artículos de Revistas

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