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metadata.artigo.dc.title: Selection of a chitosan gelatin-based edible coating for color preservation of beef in retail display
metadata.artigo.dc.creator: Cardoso, Giselle Pereira
Dutra, Monalisa Pereira
Fontes, Paulo Rogério
Ramos, Alcinéia de Lemos Souza
Gomide, Lúcio Alberto de Miranda
Ramos, Eduardo Mendes
metadata.artigo.dc.subject: Bioactive coating
Lipid oxidation
CIE color
Myoglobin-redox forms
metadata.artigo.dc.publisher: Elsevier Apr-2016
metadata.artigo.dc.identifier.citation: CARDOSO, G. P. et al. Selection of a chitosan gelatin-based edible coating for color preservation of beef in retail display. Meat Science, Barking, v. 114, p. 85-94, Apr. 2016.
metadata.artigo.dc.description.abstract: Chitosan gelatin-based coating films were applied to beef steaks, and their effects on color preservation and lipid oxidation during retail display were evaluated. Response surface methodology was used to model and describe the effects of different biopolymer concentrations (0 to 6% gelatin; 0.5 to 1.5% chitosan; and 0 to 12% glycerol based on dry gelatin + chitosan weight) in the coating film for optimizing the best combination for meat application. Film application reduced weight loss and lipid oxidation of the steaks after 5 days of storage, and films with higher gelatin concentrations were more effective. The percentage levels of different myoglobin-redox forms were not affected by coating, but myoglobin oxidation during retail display was reduced and the percentage of deoxymyoglobin increased with the gelatin content of the film. Steak color stability during retail display was promoted by film application; the steaks exhibited a darker, more intensely red color when coated in blends with higher gelatin and chitosan contents. Blends containing between 3% and 6% gelatin, between 0.5% and 1.0% chitosan and 6% glycerol exhibited the best results and provide a promising alternative to the preservation of beef in retail display.
metadata.artigo.dc.language: en_US
Appears in Collections:DCA - Artigos publicados em periódicos

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