Inhibition of Listeria monocytogenes in Fresh Cheese Using Chitosan-Grafted Lactic Acid Packaging

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ID: 19872
2016
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Abstract
A chitosan from biologically obtained chitin was successfully grafted with d,l-lactic acid (LA) in aqueous media using p-toluenesulfonic acid as catalyst to obtain a non-toxic, biodegradable packaging material that was characterized using scanning electron microscopy, water vapor permeability, and relative humidity (RH) losses. Additionally, the grafting in chitosan with LA produced films with improved mechanical properties. This material successfully extended the shelf life of fresh cheese and inhibited the growth of Listeria monocytogenes during 14 days at 4 °C and 22% RH, whereby inoculated samples with chitosan-g-LA packaging presented full bacterial inhibition. The results were compared to control samples and commercial low-density polyethylene packaging.
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sandoval2016inhibitionmolecules Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Sandoval, Laura N.;López, Monserrat;Montes-Díaz, Elizabeth;Espadín, Andres;Tecante, Alberto;Gimeno, Miquel;Shirai, Keiko;
Journal molecules
Year 2016
DOI
DOI not found
URL
http://www.mdpi.com/1420-3049/21/4/469
Keywords Keywords not found

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