Bio-based PLA_PHB plasticized blend films: Processing and structural characterization

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Title: Bio-based PLA_PHB plasticized blend films: Processing and structural characterization
Authors: Armentano, Ilaria | Fortunati, Elena | Burgos, Nuria | Dominici, Franco | Luzi, Francesca | Fiori, Stefano | Jiménez, Alfonso | Yoon, Kicheol | Ahn, Jisoo | Kang, Sangmi | Kenny, José María
Research Group/s: Análisis de Polímeros y Nanomateriales
Center, Department or Service: Universidad de Alicante. Departamento de Química Analítica, Nutrición y Bromatología
Keywords: Poly(lactic acid) | Poly(3-hydroxybutyrate) | Carvacrol | Lactic acid oligomers | Active packaging
Knowledge Area: Química Analítica
Issue Date: Dec-2015
Publisher: Elsevier
Citation: LWT - Food Science and Technology. 2015, 64(2): 980-988. doi:10.1016/j.lwt.2015.06.032
Abstract: Bio-based films formed by poly(lactic acid) (PLA) and poly(3-hydroxybutyrate) (PHB) plasticized with an oligomer of the lactic acid (OLA) were used as supporting matrices for an antibacterial agent (carvacrol). This paper reports the main features of the processing and physico-chemical characterization of these innovative biodegradable material based films, which were extruded and further submitted to filmature process. The effect of the addition of carvacrol and OLA on their microstructure, chemical, thermal and mechanical properties was assessed. The presence of these additives did not affect the thermal stability of PLA_PHB films, but resulted in a decrease in their crystallinity and in the elastic modulus for the active formulations. The obtained results showed the effective presence of additives in the PLA or the PLA_PHB matrix after processing at high temperatures, making them able to be used in active and bio-based formulations with antioxidant/antimicrobial performance.
Sponsor: This research was financed by the SAMSUNG GRO PROGRAMME 2012. We also like the Spanish Ministry of Economy and Competitiveness by their financial support (Ref. MAT2014-59242-C2-2-R).
ISSN: 0023-6438 (Print) | 1096-1127 (Online)
DOI: 10.1016/j.lwt.2015.06.032
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2015 Elsevier Ltd.
Peer Review: si
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Appears in Collections:INV - NANOBIOPOL - Artículos de Revistas

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