title: Comparison of chitosan-gelatin composite and bilayer coating and film effect on the quality of refrigerated rainbow trout.
abstract: The effect of chitosan-gelatin coating and film on the rancidity development in rainbow trout (Oncorhynchus mykiss) fillets during refrigerated storage (4±1 °C) was examined over a period of 16 days. Composite and bilayer coated and film wrapped fish samples were analysed periodically for microbiological (total viable count, psychrotrophic count) and chemical (TVB-N, POV, TBARS, FFA) characteristics. The results indicated that chitosan-gelatin coating and film retained their good quality characteristics and extend the shelf life of fish samples during refrigerated storage .The coating was better than the film in reducing lipid oxidation of fillets, but there was no significant difference between them in control of bacterial contamination.
authors.affiliation: Dept. of Fisheries, University of Agricultural Sciences and Natural Resources, Beheshti St., Gorgan 49138-15739, Iran. f.nowzari@yahoo.com
authors.forename: Fariba
authors.initials: F
authors.lastname: Nowzari
authors.forename: Bahareh
authors.initials: B
authors.lastname: Shábanpour
authors.forename: Seýed Mahdi
authors.initials: SM
authors.lastname: Ojagh
mesh_terms: D000818:Animals; D001419:Bacteria / Q000302:isolation & purification; D048271:Chitosan / Q000737:chemistry; D003080:Cold Temperature; D018857:Food Packaging / Q000295:instrumentation / Q000379:methods*; D005519:Food Preservation; D061353:Food Storage; D005780:Gelatin / Q000737:chemistry; D017686:Oncorhynchus mykiss / Q000382:microbiology; D012034:Refrigeration; D017747:Seafood / Q000032:analysis* / Q000382:microbiology
chemical_list: D005780:Gelatin; D048271:Chitosan
keywords: Bilayer; Chitosan; Coating; Composite; Film; Gelatin