| Autor: |
Wagoner MP; Department of Animal Sciences, Auburn University, Auburn, AL 36849, USA., Reyes TM; Department of Animal Sciences, Auburn University, Auburn, AL 36849, USA., Zorn VE; Department of Animal Sciences, Auburn University, Auburn, AL 36849, USA., Coursen MM; Department of Animal Sciences, Auburn University, Auburn, AL 36849, USA., Corbitt KE; Department of Animal Sciences, Auburn University, Auburn, AL 36849, USA., Wilborn BS; Department of Animal Sciences, Auburn University, Auburn, AL 36849, USA., Starkey CW; Department of Poultry Science, Auburn University, Auburn, AL 36849, USA., Brandebourg TD; Department of Animal Sciences, Auburn University, Auburn, AL 36849, USA., Belk AD; Department of Animal Sciences, Auburn University, Auburn, AL 36849, USA., Bonner T; Winpak Ltd., 100 Saulteaux Crescent, Winnipeg, MB R3J 3T3, Canada., Sawyer JT; Department of Animal Sciences, Auburn University, Auburn, AL 36849, USA. |
| Abstrakt: |
The impact of frozen storage on beef steaks prior to the retail setting may result in changes to the quality and safety of the packaged meat. Therefore, the objective of the current study was to evaluate fresh characteristics on previously frozen steaks during a simulated retail display. Steaks were allocated to one of three packaging treatments (MB, MDF, MFS) and stored frozen (−13 °C) for 25 days in the absence of light. After thawing, steaks were stored in a lighted retail case at 3 °C and evaluated for instrumental surface color, pH, purge loss, lipid oxidation, and microbial spoilage organisms throughout the 25-day fresh display period. There was an increase (p < 0.05) for aerobic plate counts and lipid oxidation from day 20 through 25 on steaks packaged in MFS and MDF, respectively. Steaks packaged in MB were redder (p < 0.05) and more vivid (C*) as storage time increased. Whereas lipid oxidation was greater (p < 0.05) throughout the entire display for steaks packaged in MFS and MDF. It is evident that barrier properties of MB limiting oxygen exposure of the steak preserved fresh meat characteristics after frozen storage. Results from the current study suggest that vacuum packaging films can aid in retarding detrimental effects caused by frozen storage after placing the steaks in fresh retail conditions. |
