Antioxidant Bilayers Based on PHBV and Plasticized Electrospun PLA-PHB Fibers Encapsulating Catechin



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Arrieta Dillon, Marina Patricia and Díez García, Alberto and López, Daniel and Fiori, Stefano and Peponi, Laura (2019) Antioxidant Bilayers Based on PHBV and Plasticized Electrospun PLA-PHB Fibers Encapsulating Catechin. Nanomaterials, 9 (3). p. 346. ISSN 2079-4991

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The main objective of this work was to develop bio-based and biodegradable bilayer systems with antioxidant properties. The outer layer was based on a compression-molded poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)-based material while antioxidant electrospun fibers based on poly(lactic acid) (PLA) and poly(3-hydroxybutyrate) (PHB) blends formed the inner active layer. In particular, PLA was blended with 25 wt% of PHB to increase the crystallinity of the fibers and reduce the fiber defects. Moreover, in order to increase the stretchability and to facilitate the electrospinning process of the fiber mats, 15 wt% of oligomeric lactic acid was added as a plasticizer. This system was further loaded with 1 wt% and 3 wt% of catechin, a natural flavonoid with antioxidant activity, to obtain antioxidant-active mats for active food packaging applications. The obtained bilayer systems showed effective catechin release capacity into a fatty food simulant. While the released catechin showed antioxidant effectiveness. Finally, bilayer films showed appropriate disintegration in compost conditions in around three months. Thus, showing their potential as bio-based and biodegradable active packaging for fatty food products.

Item Type:Article
Uncontrolled Keywords:electrospinning; antioxidant active packaging; bio-based polymers; biodegradable polymers; poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV); poly(lactic acid) (PLA); poly(3-hydroxybutyrate) (PHB); oligomeric lactic acid (OLA); catechin
Subjects:Sciences > Chemistry > Chemistry, Organic
ID Code:66761
Deposited On:19 Jul 2021 14:29
Last Modified:20 Jul 2021 07:20

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