Publication Type Journal Article
Title Pullulan-based nanocomposite films for functional food packaging: Exploiting lysozyme nanofibers as antibacterial and antioxidant reinforcing additives
Authors Nuno H. C. S. Silva Carla Vilela Adelaide Almeida Isabel Marrucho Carmen S. R. Freire
Groups MET
Journal FOOD HYDROCOLLOIDS
Year 2018
Month April
Volume 77
Number
Pages 921-930
Abstract Homogeneous, glossy and transparent nanocomposite films composed of pullulan (PL) and lysozyme nanofibers (LNFs) were developed by simple solvent casting from aqueous suspensions. The incorporation of LNFs into the PL matrix maintained the filmogenic ability of PL and endowed the nanocomposite films with good mechanical properties (Young s modulus = 1.91-2.50 GPa) and several functionalities, confirming the potential of LNFs as bioactive reinforcing elements for nanocomposites. The set of pliable films exhibits thermal stability up to 225 degrees C and maximum antioxidant activity around 77\% (DPPH scavenging activity) for the film with the highest LNFs content (15.0 wt\%). The antibacterial activity of the ensuing nanocomposite films towards Staphylococcus aureus, viz. lysozyme-resistant bacteria, was assessed, and the data show augmented antibacterial effectiveness with increasing content of nanofibers. These promising results show the potential of PL/LNFs nanocomposites as eco-friendly edible films for active packaging. (C) 2017 Elsevier Ltd. All rights reserved.
DOI http://dx.doi.org/10.1016/j.foodhyd.2017.11.039
ISBN
Publisher
Book Title
ISSN 0268-005X
EISSN 1873-7137
Conference Name
Bibtex ID ISI:000424927700097
Observations
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