J. Anim Sci.
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J. Anim Sci. 1981. 53:658-662.
© 1981 American Society of Animal Science
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Effect of Chloride Salts, Acid Phosphate and Electrical Stimulation on pH and Moisture Loss from Beef Clod Muscles1

R. N. Terrell2, C. G. Ming2, J. A. Jacobs3, G. C. Smith2 and Z. L. Carpenter2

Texas A&M University, College Station

Abstract

Effects of chloride salts, acid phosphate and electrical stimulation (ES) on processing properties of beef clods were determined. Ten pairs of shoulder clod muscles (right side = ES; left side = not ES) from cattle varying in maturity and live weight and representing both sexes were assigned to the following treatments: control (no additives), 2.5% NaCl, 3.18% KC1, 1.58% CaCl2, 1.35% MgCl2 and .5% monocalcium phosphate monohydrate (acid phosphate). Concentrations of chloride salts were selected to have ionic strengths equivalent to that of 2.5% NaCl (.628). Samples treated with monocalcium phosphate and CaCl2 exhibited greater expressible moisture loss and moisture loss during cooking and had lower pH values (P<.05) than control samples and samples with 2.5% added NaCl. In contrast, treatment with MgCl2 resulted in less expressible moisture loss and moisture loss during cooking than did the control and the NaCl treatments. ES decreased (P<.05) expressible moisture loss when NaCl was used, increased (P<.05) these values when CaCl2 was used and had no effect (P>.05) on expressible moisture loss from either control clods or clods treated with KCl, MgCl2 or monocalcium phosphate. Although moisture losses during cooking were numerically greater in five of six comparisons (ES versus not ES), these differences were not significant. ES had no effect (P>.05) on muscle pH values.

Footnotes

1 T. A. 16722. Texas Agr. Exp. Sta. This study was partially supported by King Ranch, Inc., Kingsville, TX; LeFiell and Company, San Francisco, CA, and the Oscar Schmidt Meat Research Development Fund.

2 Meats and Muscle Biol. Sect., Dept. of Anim. Sci., Texas A&M University, Texas Agri. Exp. Sta., College Station 77843.

3 Dept. of Anim. Sci., Idaho Agr. Exp. Sta., Univ. of Idaho, Moscow 83843.






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Copyright © 1981 by the American Society of Animal Science.