The Effect of Different Packaging Systems on the Shelf Life of Refrigerated Ground Beef.

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ID: 105204
2020
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Abstract
The aim of this study was to investigate the effects of different packaging systems on the shelf life of refrigerated ground beef. The ground beef samples were packaged as follows: AA (100% ambient air), 90O:10CO (90% O and 10% CO), 80O:20CO (80% O and 20% CO), 70O:30CO (70% O and 30% CO), 60O:40CO (60% O and 40% CO), 50O:50CO (50% O and 50% CO), 100O (100% O), and VP (vacuum packaging). All treatments were analyzed daily for O and CO levels, pH, filtration time, total volatile basic nitrogen (TVB-N), aerobic mesophilic heterotrophic bacteria (AMHB), and aerobic psychrotrophic heterotrophic bacteria (APHB) over 20 days at 2 °C. All MAP systems had a decrease of O and an increase of CO levels during storage period ( < 0.05). Overall, the MAP systems were similarly able to decrease the pH and retard the increase of TVB-N and filtration time over the storage period ( > 0.05). Moreover, the MAP systems increased the lag phase and/or the generation time of both AMHB and APHB, extending the shelf life by 3 (90O:10CO), 4 (70O:30CO and 100O), and 5 days (80O:20CO, 60O:40CO, 50O:50CO and VP). All MAP systems were equally effective in retarding physicochemical degradation; however, 80O:20CO, 60O:40CO, 50O:50CO and VP were the most effective in impairing bacterial growth and extending the shelf life of ground beef stored under refrigeration.
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contejunior2020thefoods Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Conte-Junior, Carlos A;Monteiro, Maria Lúcia G;Patrícia, Renata;Mársico, Eliane T;Lopes, Márcia M;Alvares, Thiago S;Mano, Sérgio B;
Journal Foods (Basel, Switzerland)
Year 2020
DOI
E495
URL
Keywords
modified atmosphere packaging map predictive microbiology minced meat physicochemical quality indicators vacuum packaging

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