Kinetic desorption models for the release of nanosilver from an experimental nanosilver coating on polystyrene food packaging

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dc.contributor.author Hannon, Joseph Christopher
dc.contributor.author Kerry, Joseph P.
dc.contributor.author Cruz-Romero, Malco C.
dc.contributor.author Azlin-Hasim, Shafrina
dc.contributor.author Morris, Michael
dc.contributor.author Cummins, Enda
dc.date.accessioned 2017-09-12T09:21:17Z
dc.date.available 2017-09-12T09:21:17Z
dc.date.issued 2017-07-04
dc.identifier.citation Hannon, J. C., Kerry, J. P., Cruz-Romero, M., Azlin-Hasim, S., Morris, M. and Cummins, E. (2017) 'Kinetic desorption models for the release of nanosilver from an experimental nanosilver coating on polystyrene food packaging', Innovative Food Science & Emerging Technologies, In Press. doi: 10.1016/j.ifset.2017.07.001 en
dc.identifier.issn 1466-8564
dc.identifier.uri http://hdl.handle.net/10468/4684
dc.identifier.doi 10.1016/j.ifset.2017.07.001
dc.description.abstract To predict the kinetic desorption of silver from an experimental nanosilver coated polystyrene food packaging material into food simulants (0, 1, 2 and 3% acetic acid (HAc) in distilled water (dH2O)) at 4 temperatures (10, 20, 40 and 70 °C), 5 sorption models were examined for their performance. A pseudo-second order kinetic sorption model was found to provide the best prediction of an unseen desorption validation dataset with R2 = 0.90 and RMSE = 3.21. Poor predictions were witnessed for desorption at 70 °C, potentially due to re-adsorption of the silver back onto the polystyrene substrate, as shown in the kinetic migration experiments. Similarly, the temperature dependence of the desorption rate constant was satisfactorily described using the Arrhenius equation with the exception of the 70 °C scenario. The use of sorption models identified scenarios that may limit human exposure to nanosilver migrating from this experimental nanocoating, i.e. low temperature applications. Industrial relevance: The use of antimicrobial packaging has the potential to reduce food spoilage and risk from pathogenic microorganisms while reducing food waste by extending the shelf life of food products. Coating of antimicrobial silver nanoparticles (AgNPs) to polymer surfaces is a highly advantageous technology as microbial contamination predominantly occurs on the surface of fresh and processed food products. However, uncertainty related to the potential release of nanoparticles from food packaging materials, subsequent potential human exposure and toxicology is a barrier to the uptake of these novel materials. In the European Union, where the safety assessment of these materials is stringent, mathematical models used to predict the worst case migration of nanoparticles from food packaging materials have supported the acceptance of some nanomaterials for use in food packaging. The performance of a number of desorption models was evaluated to predict the release of AgNPs from AgNP coated polystyrene. The model identified factors that influenced migration and possible industrial applications for the developed material to minimise human exposure. The study highlights the potential benefits of using predictive models to assess migration of NPs from polymers into food simulants instead of time consuming and expensive migration studies. en
dc.description.sponsorship Department of Agriculture, Food and the Marine, Ireland (National Development (11/F/038), through the Food Institutional Research Measure); Ministry of Education, Malaysia (MOE PhD scholarship) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Elsevier en
dc.relation.uri http://www.sciencedirect.com/science/article/pii/S1466856416304556
dc.rights © 2017 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license. en
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ en
dc.subject Nanoparticle en
dc.subject Nanosilver en
dc.subject Migration en
dc.subject Modelling en
dc.subject Desorption en
dc.subject Food packaging en
dc.subject Coating en
dc.subject Nanoparticle tracking analysis en
dc.title Kinetic desorption models for the release of nanosilver from an experimental nanosilver coating on polystyrene food packaging en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Joseph Kerry, Dept Of Food & Nutritional Sciences, University College Cork, Cork, Ireland. +353-21-490-3000 Email: joe.kerry@ucc.ie en
dc.internal.availability Full text available en
dc.check.info Access to this article is restricted until 12 months after publication at the request of the publisher. en
dc.check.date 2018-07-04
dc.date.updated 2017-09-12T09:13:07Z
dc.description.version Accepted Version en
dc.internal.rssid 410774558
dc.contributor.funder Department of Agriculture, Food and the Marine en
dc.contributor.funder Ministry of Higher Education, Malaysia en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Innovative Food Science & Emerging Technologies en
dc.internal.copyrightchecked No !! CORA!! en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress joe.kerry@ucc.ie en
dc.internal.IRISemailaddress m.cruz@ucc.ie en


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© 2017 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license. Except where otherwise noted, this item's license is described as © 2017 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.
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