title: Development of flexible antimicrobial packaging materials against Campylobacter jejuni by incorporation of gallic acid into zein-based films.
abstract: In this study, antimicrobial films were developed against Campylobacter jejuni by incorporation of gallic acid (GA) into zein-based films. The zein and zein-wax composite films containing GA between 2.5 and 10 mg/cm(2) were effective on different C. jejuni strains in a concentration-dependent manner. Zein and zein-wax composite films showed different release profiles in distilled water but quite similar release profiles at solid agar medium. Depending on incorporated GA concentration, 60-80% of GA released from the films, while the remaining GA was bound or trapped by film matrix. The GA at 2.5 and 5 mg/cm(2) caused a considerable increase in elongation (57-280%) of all zein films and eliminated their classical flexibility problems. The zein-wax composite films were less flexible than zein films, but the films showed similar tensile strengths and Young's modulus. Scanning electron microscopy indicated different morphologies of zein and zein-wax composite films. This study clearly showed the good potential of zein and GA to develop flexible antimicrobial films against C. jejuni.
authors: Department of Food Engineering, Faculty of Engineering, Izmir Institute of Technology, 35430, Gülbahçe Köyü, Urla, İzmir, Turkey.
authors: Derya
authors: D
authors: Alkan
authors: Levent Y
authors: LY
authors: Aydemir
authors: Iskender
authors: I
authors: Arcan
authors: Hatice
authors: H
authors: Yavuzdurmaz
authors: Halil I
authors: HI
authors: Atabay
authors: Cagatay
authors: C
authors: Ceylan
authors: Ahmet
authors: A
authors: Yemenicioğlu
mesh_terms: D000890:Anti-Infective Agents; D002169:Campylobacter Infections / Q000517:prevention & control / Q000635:transmission; D016123:Campylobacter jejuni / Q000187:drug effects*; D018857:Food Packaging / Q000295:instrumentation*; D005517:Foodborne Diseases / Q000382:microbiology / Q000517:prevention & control; D005707:Gallic Acid / Q000008:administration & dosage*; D015028:Zein
chemical_list: D000890:Anti-Infective Agents; D005707:Gallic Acid; D015028:Zein