| Autor: |
SHACKELFORD, S.D., KOOHMARAIE, M., WHIPPLE, G., WHEELER, T.L., MILLER, M.F., CROUSE, J.D., REAGAN, J.O. |
| Předmět: |
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| Zdroj: |
Journal of Food Science (Wiley-Blackwell); Sep1991, Vol. 56 Issue 5, p1130-1135, 6p |
| Abstrakt: |
Equations were developed to predict beef longissimus dorsi (LD) tenderness after postmortem refrigerated aging. Warner-Bratzler shearforce (WBSF) and myofibril fragmentation indices (MFI) were determined at 1, 3, 7 and 14 days postmortem on LD of Angus-Hereford AH, n = 8) and 5/8 Brahman crossbred (n = 8) heifer carcasses.Correlation coefficients between WBSF and MFI were --0.91, --0.74,--0.63, and --0.40 at 1, 3, 7 and 14 days postmortem, respectively.None of the traits measured correlated significantly with 14-day WBSF(P > 0.05). A three-variable prediction equation that included 24-hrcalcium-dependent protease (CDP) inhibitor activity, 0-hr CDP-I acivity and 24-hr cystatin activity accounted for 63% of the variation in 14-day WBSF. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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