1
|
Iglesias-Montes ML, Luzi F, Dominici F, Torre L, Manfredi LB, Cyras VP, Puglia D. Migration and Degradation in Composting Environment of Active Polylactic Acid Bilayer Nanocomposites Films: Combined Role of Umbelliferone, Lignin and Cellulose Nanostructures. Polymers (Basel) 2021; 13:polym13020282. [PMID: 33467159 PMCID: PMC7830319 DOI: 10.3390/polym13020282] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/06/2021] [Accepted: 01/14/2021] [Indexed: 01/12/2023] Open
Abstract
This study was dedicated to the functional characterization of innovative poly(lactic acid) (PLA)-based bilayer films containing lignocellulosic nanostructures (cellulose nanocrystals (CNCs) or lignin nanoparticles (LNPs)) and umbelliferone (UMB) as active ingredients (AIs), prepared to be used as active food packaging. Materials proved to have active properties associated with the antioxidant action of UMB and LNPs, as the combination of both ingredients in the bilayer formulations produced a positive synergic effect inducing the highest antioxidant capacity. The results of overall migration for the PLA bilayer systems combining CNCs or LNPs and UMB revealed that none of these samples exceeded the overall migration limit required by the current normative for food packaging materials in both non-polar and polar simulants. Finally, all the hydrophobic monolayer and bilayer films were completely disintegrated in composting conditions in less than 18 days of incubation, providing a good insight on the potential use of these materials for application as active and compostable food packaging.
Collapse
Affiliation(s)
- Magdalena L. Iglesias-Montes
- Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Facultad de Ingeniería, Universidad Nacional de Mar del Plata-Consejo de Investigaciones Científicas y Técnicas (CONICET), Av. Colón 10850, 7600 Mar del Plata, Argentina; (M.L.I.-M.); (L.B.M.); (V.P.C.)
| | - Francesca Luzi
- Civil and Environmental Engineering Department, UdR INSTM, University of Perugia, Strada di Pentima 4, 05100 Terni, Italy; (F.L.); (F.D.); (L.T.)
| | - Franco Dominici
- Civil and Environmental Engineering Department, UdR INSTM, University of Perugia, Strada di Pentima 4, 05100 Terni, Italy; (F.L.); (F.D.); (L.T.)
| | - Luigi Torre
- Civil and Environmental Engineering Department, UdR INSTM, University of Perugia, Strada di Pentima 4, 05100 Terni, Italy; (F.L.); (F.D.); (L.T.)
| | - Liliana B. Manfredi
- Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Facultad de Ingeniería, Universidad Nacional de Mar del Plata-Consejo de Investigaciones Científicas y Técnicas (CONICET), Av. Colón 10850, 7600 Mar del Plata, Argentina; (M.L.I.-M.); (L.B.M.); (V.P.C.)
| | - Viviana P. Cyras
- Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Facultad de Ingeniería, Universidad Nacional de Mar del Plata-Consejo de Investigaciones Científicas y Técnicas (CONICET), Av. Colón 10850, 7600 Mar del Plata, Argentina; (M.L.I.-M.); (L.B.M.); (V.P.C.)
| | - Debora Puglia
- Civil and Environmental Engineering Department, UdR INSTM, University of Perugia, Strada di Pentima 4, 05100 Terni, Italy; (F.L.); (F.D.); (L.T.)
- Correspondence: ; Tel.: +39-0744-492916
| |
Collapse
|