title: Antibacterial effectiveness of chitosan-propolis coated polypropylene films against foodborne pathogens.
abstract: 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.
authors.affiliation: Necmettin Erbakan University, Faculty of Science, Department of Biology, 42090 Konya, Turkey. torlakemrah@yahoo.com
authors.forename: Emrah
authors.initials: E
authors.lastname: Torlak
authors.forename: Durmuş
authors.initials: D
authors.lastname: Sert
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000494:pharmacology; D001419:Bacteria / Q000145:classification / Q000187:drug effects*; D048271:Chitosan / Q000737:chemistry* / Q000494:pharmacology; D005516:Food Microbiology; D018857:Food Packaging; D008826:Microbial Sensitivity Tests; D011126:Polypropylenes / Q000737:chemistry*; D011429:Propolis / Q000737:chemistry* / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D011126:Polypropylenes; D011429:Propolis; D048271:Chitosan
keywords: Antimicrobial packaging; Chitosan; Foodborne pathogen; ISO 22196; Propolis