title: Packaging-specific influence of chitosan on color stability and lipid oxidation in refrigerated ground beef.
abstract: We examined the influence of chitosan on lipid oxidation and color stability of ground beef stored in different modified atmosphere packaging (MAP) systems. Ground beef patties with chitosan (1%) or without chitosan (control) were packaged either in high-oxygen MAP (HIOX; 80% O(2)+20% CO(2)), carbon monoxide MAP (CO; 0.4% CO+19.6% CO(2)+80% N(2)), vacuum (VP), or aerobic packaging (PVC) and stored at 1 °C. Chitosan increased (P<0.05) redness of patties stored in PVC and CO, whereas it had no effect (P>0.05) in HIOX. Chitosan patties demonstrated lower (P<0.05) lipid oxidation than controls in all packaging. Control patties in PVC and HIOX exhibited greater (P<0.05) lipid oxidation than those in VP and CO, whereas chitosan patties in different packaging systems were not different (P>0.05) from each other. Our findings suggested that antioxidant effects of chitosan on ground beef are packaging-specific.
authors.affiliation: Department of Animal and Food Sciences, University of Kentucky, Lexington, KY 40546, USA. spsuma2@email.uky.edu
authors.forename: S P
authors.initials: SP
authors.lastname: Suman
authors.forename: R A
authors.initials: RA
authors.lastname: Mancini
authors.forename: P
authors.initials: P
authors.lastname: Joseph
authors.forename: R
authors.initials: R
authors.lastname: Ramanathan
authors.forename: M K R
authors.initials: MK
authors.lastname: Konda
authors.forename: G
authors.initials: G
authors.lastname: Dady
authors.forename: S
authors.initials: S
authors.lastname: Yin
mesh_terms: D000332:Aerobiosis; D000818:Animals; D000975:Antioxidants; D002248:Carbon Monoxide; D002417:Cattle; D048271:Chitosan; D003116:Color; D018857:Food Packaging / Q000379:methods*; D005519:Food Preservation / Q000379:methods*; D015227:Lipid Peroxidation; D008460:Meat / Q000032:analysis*; D010100:Oxygen; D012034:Refrigeration; D014618:Vacuum
chemical_list: D000975:Antioxidants; D002248:Carbon Monoxide; D048271:Chitosan; D010100:Oxygen