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Packaging technology is evolving, and the objectives of this study were to evaluate instrumental surface color, expert color evaluation, and lipid oxidation (TBARS) on beef longissimus lumborum steaks packaged in vacuum-ready packaging (VRF) or polyvinyl chloride (PVC) overwrap packaging. Paired strip loins (Institutional Meat Purchasing Specifications # 180) were cut into 2.54-cm-thick steaks and assigned randomly to one of two packaging treatments, VRF or PVC. Steaks packaged in VRF were lighter in color (p &lt; 0.05) as the display period increased, whereas steaks packaged in PVC became darker (p &lt; 0.05). Redness (a*) values were greater (p &lt; 0.05) for PVC steaks until day 5, whereas VRF steaks had a greater (p &lt; 0.05) surface redness from day 10 to 35 of the display period. Calculated spectral values of red to brown were greater (p &lt; 0.05) for steaks in VRF than PVC. In addition, expert color evaluators confirmed VRF steaks were less brown and less discolored (p &lt; 0.05) from day 5 to 35 of the display. Nonetheless, lipid oxidation was greater (p &lt; 0.05) for PVC steaks from day 10 through day 35 of the display. Results from this study suggest that the use of vacuum packaging for beef steaks is plausible for maintaining surface color characteristics during extended display periods.

Vacuum Packaging Can Extend Fresh Color Characteristics of Beef Steaks during Simulated Display Conditions