Inactivation of Listeria monocytogenes on a polyethylene surface modified by layer-by-layer deposition of the antimicrobial N-halamine

Bastarrachea, L. J. and Peleg, M. and McLandsborough, L. A. and Goddard, J. M.. (2013) Inactivation of Listeria monocytogenes on a polyethylene surface modified by layer-by-layer deposition of the antimicrobial N-halamine. Journal of Food Engineering, 117 (1). pp. 52-58.

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Abstract

Modification of food contact surfaces to be antimicrobial represents an approach to address the problem of cross-contamination in the food industry. The effect of increasing levels of surface modification on low density polyethylene (LDPE) through application of N-halamines on the inactivation kinetics of Listeria monocytogenes Scott A was evaluated. Increasing levels of modification were applied through layer by layer deposition on LDPE surface (1-5 double layers of polyethyleneimine and poly(acrylic acid)). Surface modification was achieved and confirmed through Fourier Transform Infrared Spectroscopy (FTIR). From I to 5 double layers, the N-halamine content ranged from 3.42 +/- 1.2 to 27.30 +/- 3.5 nmol cm(-2). More than four logarithmic cycles (>99.99%) reduction was reached against L. monocytogenes Scott A after different contact times depending on the level of modification, that varied from 50 to 110 min (from 5 to 2 double layers). Inactivation kinetics followed a sigmoidal behavior. (c) 2013 Elsevier Ltd. All rights reserved.

Item Type: Article
Additional Information: ISI Document Delivery No.: 130COTimes Cited: 0Cited Reference Count: 30Bastarrachea, Luis J. Peleg, Micha McLandsborough, Lynne A. Goddard, Julie M.National Institute of Food and Agriculture, US Department of Agriculture 2011-65210-20059; Center for Hierarchical Manufacturing at UMass Amherst; NSF Nanoscale Science \& Engineering Center; National Science Foundation under NSF Grant CMMI-0531171This material is based upon work supported by the National Institute of Food and Agriculture, US Department of Agriculture under project number 2011-65210-20059 and in part by the Center for Hierarchical Manufacturing at UMass Amherst, an NSF Nanoscale Science \& Engineering Center supported by the National Science Foundation under NSF Grant No. CMMI-0531171.Elsevier sci ltdOxford
Uncontrolled Keywords: ph
Collections: Nanomanufacturing Research Collection > Nanomanufacturing Nanoscale Science and Engineering Centers > Center for Hierarchical Manufacturing
Depositing User: Robert Stevens
Date Deposited: 27 Mar 2014
Last Modified: 27 Mar 2014 20:21
URI: http://eprints.internano.org/id/eprint/2160

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