Journal
MEAT SCIENCE
Volume 93, Issue 3, Pages 477-484Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.meatsci.2012.10.009
Keywords
Shelf life; Oxygen scavengers; Master bag; Case-ready Semitendinosus beef steaks; Blooming
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This study aims to evaluate the stability of beef from Semitendinosus muscle packaged in oxygen permeable wrapped-tray units and stored in a master bag system, with and without oxygen scavengers. Changes in the atmosphere composition, microbiological indexes, myoglobin forms and color parameters were monitored during the storage in master bag, blooming and display life. The presence of scavengers reduced rapidly the oxygen concentration and maintained it at values not detectable instrumentally. Within few days of storage in master bags, the resolution of the transient discoloration was completed and the meat quality was maintained over the anoxic storage. After the removal from master bags meat bloomed completely reaching OxyMb level and Chroma values higher than those on fresh meat at to. During 48 h of display life at 4 degrees C, quality attributes had a decay slower than samples stored traditionally in air. Without scavengers the oxygen caused the irreversible discoloration within 7 days, due to the formation of metmyoglobin on the surface. (c) 2012 Elsevier Ltd. All rights reserved.
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