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Material Properties of Xanthan Coating Applied to Poly(lactic acid) Films and Antimicrobial Effects of Xanthan Coating Containing Bacteriophages

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dc.contributor.advisor Loong-Tak, Lim
dc.contributor.author Guild, Brandon Michael
dc.date.accessioned 2017-06-01T19:10:52Z
dc.date.available 2018-05-24T05:00:43Z
dc.date.copyright 2017-05
dc.date.created 2017-05-24
dc.date.issued 2017-06-01
dc.identifier.uri http://hdl.handle.net/10214/10510
dc.description.abstract Antimicrobial active packaging systems utilizing biobased materials are of growing research interest. A biobased film of xanthan coated PLA was developed and characterized. Viscosity and moisture sorption of the coating were evaluated, in addition to water permeability, thermal and surface properties of the coated film. Microscopic analyses indicated that repeatable coatings could be created using a draw-down casting approach. The addition of bacteriophage preparation to xanthan solution did not significantly affect water barrier or coating consistency on PLA films. The Listeria phage A511 and Salmonella phage were immobilized in xanthan coatings, and the antimicrobial activity of the xanthan-coated PLA films evaluated. Antimicrobial films were tested on cooked sliced turkey breast resulting in 1 to 2 log-reductions over the study period, with greater reduction in Listeria inoculated samples. The active packaging film can be applied as a separator or antimicrobial layer for sliced RTE meat products. en_US
dc.description.sponsorship Ontario Ministry of Agriculture, Food and Rural Affairs (OMAFRA) en_US
dc.language.iso en en_US
dc.subject Poly(lactic acid) en_US
dc.subject xanthan en_US
dc.subject coating en_US
dc.subject active packaging en_US
dc.subject bioplastic en_US
dc.subject food preservation en_US
dc.subject bacteriophage en_US
dc.subject Listeria en_US
dc.subject Salmonella en_US
dc.title Material Properties of Xanthan Coating Applied to Poly(lactic acid) Films and Antimicrobial Effects of Xanthan Coating Containing Bacteriophages en_US
dc.type Thesis en_US
dc.degree.programme Food Science en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Food Science en_US
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