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Journal of Animal Science, Vol 73, Issue 6 1735-1740, Copyright © 1995 by American Society of Animal Science

JOURNAL ARTICLE

Postmortem injection of calcium chloride effects on beef quality traits

J. L. Lansdell, M. F. Miller, T. L. Wheeler, M. Koohmaraie and C. B. Ramsey
Animal Science and Food Technology Department, Texas Tech University, Lubbock 79409-2162, USA.

Twenty-two Bos indicus type steers were commercially slaughtered, and their carcasses were chilled and processed to determine the effects of injecting calcium chloride (CaCl2) on beef steak palatability and quality traits. Top loin and inside round subprimals were removed from each carcass using industry fabrication procedures. No injection (control) or injection of 200 mM CaCl2 at 5% (wt/wt) was applied at 30 h postmortem to subprimals from alternating right and left sides. After vacuum storage for 7 d postmortem at 2 degrees C, 2.54-cm thick steaks were cut from each subprimal. Eighty-six percent of the control longissimus lumborum (LL) steaks and 78% of the semimembranosus (SM) control steaks had Warner-Bratzler (WBS) values > 4.5 kg, and the injection of CaCl2 reduced this percentage to 43 and 24%, respectively. The injection of CaCl2 improved (P < .05) trained sensory tenderness ratings for both LL and SM, while not affecting (P > .05) flavor intensity or causing any off-flavor problems (P > .05), compared with the controls. Lean color scores for the LL were not affected (P > .05) by the injection of CaCl2, but SM lean color was lighter red (P < .05) than controls. Therefore, a 5% (wt/wt) injection of 200 mM CaCl2 solution can be applied under commercial conditions to improve beef steak tenderness and reduce tenderness variation without detrimental effects on other palatability or quality traits.


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Copyright © 1995 by the American Society of Animal Science.