Abstract
The objective was to determine the influence of post-fabrication aging (2, 14, 21, 42, and 63days) on beef quality characteristics and consumer sensory perception of gluteus medius (GM) and longissimus lumborum (LL) steaks. Lipid oxidation and aerobic plate counts increased (P<0.05) with longer aging periods and retail display times. An aging period by day of retail display interaction (P<0.05) was observed for a* and b* values for both muscles and L* values for the LL. Warner–Bratzler shear force values decreased (P<0.05) with longer aging for the LL, while no difference was observed for the GM. Consumer panel results demonstrated that longer aging periods increased (P<0.05) tenderness of both muscles. Our results indicate that extended aging reduces retail color stability yet has positive effects on consumer perception of tenderness of beef loin muscles.
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