Influence of Retail Display Temperature on Psychrotrophic Bacterial Growth and Beef Case-Life
- 1 July 1980
- journal article
- Published by Elsevier in Journal of Food Protection
- Vol. 43 (7) , 543-547
- https://doi.org/10.4315/0362-028x-43.7.542
Abstract
Laboratory-simulated retail conditions were employed to examine the effects of retail display temperature upon growth of psychrotrophic bacteria and the retail case-life of rib-eye steaks. The temperature of continuously displayed steaks ranged from 7.5 to 14.2 C and under these conditions an average case-life of 2.4 days was determined. However, when steaks were limited in their time of retail display, by overnight refrigeration in a walk-in cooler (1 C), steak temperatures were reduced to 1 C and retail case-life substantially extended to 4.9 days. Increased retail case-life resulted from a reduction in psychrotrophic bacterial growth which was related to the rate of deterioration of steak retail appearance. These findings provide an alternative to the continuous retail display of beef which, if applied, could greatly improve beef case-life and reduce spoilage losses.Keywords
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