title: Electrostatic spraying of antioxidants on the oxidative quality of ground beef.
abstract: To prevent oxidative quality changes, a few selected antioxidants, ascorbic acid, or an ascorbic acid plus α-tocopherol combination were electrostatically sprayed on the surface of ground beef patties. Color, metmyoglobin, oxidation-reduction potential, lipid oxidation, and volatiles of the samples were determined during the 8 d of aerobic storage. Spraying of ascorbic acid at 500 mg/kg was the most effective in controlling discoloration of ground beef. Spraying of ascorbic acid at 500 mg/kg was also effective in reducing 2-thiobarbituric acid-reactive substances and volatile aldehydes such as hexanal and heptanal related to lipid oxidation. Spraying of phenolic antioxidants such as tocopherol, sesamol, or rosemary oleoresin showed significant (P < 0.05) antioxidant effects, but had no effects (P < 0.05) in stabilizing the color of ground beef. Sesamol at 100 mg/kg showed the most potent antioxidant activities among the antioxidants, and its antioxidant effect was as strong as that of 500 mg/kg of ascorbic acid. It was concluded that electrostatic spray of ascorbic acid on the surface of ground beef at 500 mg/kg was an efficient and economical way to prevent both lipid oxidation and color changes in ground beef.
authors.affiliation: Department of Animal Science and Technology, Sunchon National University, Suncheon 540-742, Korea.
authors.forename: K C
authors.initials: KC
authors.lastname: Nam
authors.forename: K S
authors.initials: KS
authors.lastname: Seo
authors.forename: C
authors.initials: C
authors.lastname: Jo
authors.forename: D U
authors.initials: DU
authors.lastname: Ahn
mesh_terms: D000447:Aldehydes / Q000737:chemistry; D000818:Animals; D000975:Antioxidants / Q000737:chemistry*; D002417:Cattle; D005519:Food Preservation / Q000379:methods*; D015227:Lipid Peroxidation; D008460:Meat / Q000592:standards*; D010084:Oxidation-Reduction; D017392:Thiobarbituric Acid Reactive Substances / Q000737:chemistry; D013997:Time Factors
chemical_list: D000447:Aldehydes; D000975:Antioxidants; D017392:Thiobarbituric Acid Reactive Substances