Journal
FOODS
Volume 11, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/foods11020245
Keywords
duck fat; chitosan; edible coating; chicken meat; shelf-life
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Funding
- Konkuk University Researcher Fund
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This study evaluated the effects of chitosan and duck fat-based emulsion coatings on the quality characteristics and microbial stability of chicken meat. The results showed that the chitosan-supplemented duck fat-based emulsion coating delayed lipid oxidation, protein deterioration, and microbial growth, improving the quality of the chicken meat.
Chicken meat is a popular food commodity that is widely consumed worldwide. However, the shelf-life or quality maintenance of chicken meat is a major concern for industries because of spoilage by microbial growth. The aim of this study was to evaluate the effects of chitosan and duck fat-based emulsion coatings on the quality characteristics and microbial stability of chicken meat during refrigerated storage. The coated chicken meat samples were as follows: control (non-coated), DFC0 (coated with duck fat), DFC0.5 (coated with duck fat and 0.5% chitosan), DFC1 (coated with duck fat and 1% chitosan), DFC2 (coated with duck fat and 2% chitosan), and SOC2 (coated with soybean oil and 2% chitosan). The results showed that the apparent viscosity and coating rate were higher in DFC2 than in other groups. Physicochemical parameters (pH, color, and Warner-Bratzler shear force) were better in DFC2 than those in other groups during 15 days of storage. Moreover, DFC2 delayed lipid oxidation, protein deterioration, and growth of microorganisms during storage. These data suggest that chitosan-supplemented duck fat-based emulsion coating could be used to maintain the quality of raw chicken meat during refrigerated storage.
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