Nano selenium as antioxidant agent in a multilayer food packaging material

Abstract

Selenium nanoparticles (SeNPs) were incorporated in a flexible multilayer plastic material using a water-base adhesive as vehicle for SeNPs. The antioxidant performance of the original solutions containing spherical SeNPs of 50-60 nm diameter, the adhesive containing these SeNPs, and the final multilayer plastic material to be used as food packaging were quantitatively measured. The radical scavenging capacity due to SeNPs was quantified by a free radical assay developed in the laboratory and by the diphenyl-1-picrylhydrazyl (DPPH) method. DPPH was not efficient to measure the scavenging capacity in the multilayer when the free radical scavenger is not in the surface in contact with it. Several multilayer laminated structures composed by [PET (20 m)-adhesive-LDPE (with variable thickness from 35 to 90 μm)] were prepared and measured, demonstrating for the first time that free radicals derived from oxygen (OH·, O2·, and O2H) cross the PE layer and arrive at the adhesive. SeNPs remain as such after manufacture and the final laminate is stable after 3 months of storage. The antioxidant multilayer is a non-migrating efficient free radical scavenger, able to protect the packaged product versus oxidation and extending the shelf life without being in direct contact with the product. Migration tests of both Se and SeNPs to simulants and hazelnuts demonstrated the non-migrating performance of this new active packaging. Graphical abstract ᅟ.

Photo‐Curable Metal‐Chelating Coatings Offer a Scalable Approach to Production of Antioxidant Active Packaging

“…According to a recent market analysis, the global revenue for active and intelligent packaging combined was estimated to be $31.1 billion in 2016 and was expected to grow steadily worldwide (Anonymous, 2016). Emerging technologies in active packaging materials have been developed at the research laboratory scale, such as ferulic acid imprinted antioxidant hydrogels (Benito-Pena et al, 2016), selenium incorporated free radical scavenging materials (Vera et al, 2016), and natural antimicrobial incorporated materials (Duran et al, 2016;Moshe et al, 2016). However, for such emerging active packaging technologies to be realized commercially, many obstacles need to be addressed, such as industrial translatability, cost of production, JFDS-2017-1897Submitted 11/20/2017, Accepted 12/28/2017 effectiveness after storage, and heat sealing properties (Werner, Koontz, & Goddard, 2017).…”

Nanotechnology to the rescue: using nano-enabled approaches in microbiological food safety and quality

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Construction of a Biocompatible and Antioxidant Multilayer Coating by Layer-by-Layer Assembly of κ-Carrageenan and Quercetin Nanoparticles

“…Consequently, the chemical structure of the layers used was an important factor to obtain antioxidant activity in multilayer coating (Ebrahimiasl et al 2015). Vera et al (2016) incorporated selenium nanoparticles (SeNPs) in a multilayer food packaging material based in a plastic structure of PET-Adhesivelow-density polyethylene, obtaining a new antioxidant material. The antioxidant capacity was based on the action of SeNPs as free radicals' scavengers.…”