Antibacterial effectiveness of chitosan–propolis coated polypropylene films against foodborne pathogens

Antibacterial properties of chitosan are well documented in the literature. However its antibacterial effectiveness in the film form is controversial due to the methodological differences in test methods used. In this study, antibacterial effectiveness of chitosan-coated polypropylene films alone an...

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Bibliographic Details
Published in:International journal of biological macromolecules 2013-09, Vol.60, p.52-55
Main Authors: Torlak, Emrah, Sert, Durmuş
Format: Article
Language:English
Subjects:
Anti-Bacterial Agents - chemistry
Anti-Bacterial Agents - pharmacology
antibacterial properties
Antimicrobial packaging
Bacillus cereus
Bacteria - classification
Bacteria - drug effects
Chitosan
Chitosan - chemistry
Chitosan - pharmacology
coatings
Cronobacter sakazakii
Escherichia coli O157
Food Microbiology
Food Packaging
food pathogens
Foodborne pathogen
ISO 22196
Listeria monocytogenes
Microbial Sensitivity Tests
polypropylenes
Polypropylenes - chemistry
Propolis
Propolis - chemistry
Propolis - pharmacology
Salmonella Typhimurium
Staphylococcus aureus
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Summary:Antibacterial properties of chitosan are well documented in the literature. However its antibacterial effectiveness in the film form is controversial due to the methodological differences in test methods used. In this study, antibacterial effectiveness of chitosan-coated polypropylene films alone and incorporating ethanolic extract of propolis (EEP) were evaluated against six foodborne pathogens (Bacillus cereus, Cronobacter sakazakii, Escherichia coli O157:H7, Listeria monocytogenes, Salmonella typhimurium and Staphylococcus aureus) using the ISO 22196 method designed for the antibacterial treated plastic products. The results demonstrated that chitosan coated film exhibited the broad-spectrum antibacterial activity. Incorporation of EPP to coating at 10% (propolis resin/chitosan) enhanced antibacterial activity against all pathogens tested. Results of this study revealed that chitosan has antibacterial activity in the film form and that propolis is a promising antimicrobial for the food packaging applications.
ISSN:0141-8130
1879-0003
DOI:10.1016/j.ijbiomac.2013.05.013