Packaging atmospheres and injection enhancement affect beef tenderness and sensory traits

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dc.contributor.author Grobbel, J.P.
dc.contributor.author Dikeman, Michael E.
dc.contributor.author Milliken, George A.
dc.contributor.author Hunt, Melvin C.
dc.date.accessioned 2009-12-09T19:15:16Z
dc.date.available 2009-12-09T19:15:16Z
dc.date.issued 2009-12-09T19:15:16Z
dc.identifier.uri http://hdl.handle.net/2097/2261
dc.description.abstract Case-ready meat provides many benefits, including quality and safety. Meat packaged in high-oxygen (HiO2) modified atmosphere packaging (MAP) has a desirable bright red display color but may have increased off- flavors and decreased tenderness. According to several international research reports, steaks aged and packaged in HiO2 MAP had more off-flavor, including warmed-over flavor, and were less tender and juicy than steaks aged in vacuum packaging (VP). Research at Kansas State University found that injection-enhanced beef quadriceps muscles packaged in HiO2 MAP were less tender and had more offflavors than those in ultra-low oxygen MAP. Detrimental effects of O2 on tenderness might be caused by protein oxidation. Oxidation of beef muscle proteins early postmortem inactivates the primary enzyme (μ-calpain) necessary to break down proteins postmortem, which results in decreased myofibrillar proteolysis and limited tenderization. Injection-enhancement improves tenderness and juiciness while decreasing variation and often is used in conjunction with MAP. Several studies have reported that enhanced steaks were more tender and juicy than non-enhanced steaks. Several researchers found an increase in beef flavor associated with enhanced steaks, but others have reported a decreased or no change in beef flavor. Offflavors associated with enhanced beef include salty and oxidative. Objectives of our study were to determine the effects of packaging atmosphere and injection-enhancement on beef strip loin, eye of round, and chuck clod tenderness, sensory traits, and desmin degradation. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Cattlemen's Day, 2008 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 08-212-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 995 en_US
dc.subject Beef en_US
dc.subject Cattle en_US
dc.subject Modified atmosphere packaging (MAP) en_US
dc.subject Injection-enhancement en_US
dc.subject Beef tenderness en_US
dc.subject Sensory traits en_US
dc.title Packaging atmospheres and injection enhancement affect beef tenderness and sensory traits en_US
dc.type Conference paper en_US
dc.date.published 2008 en_US
dc.citation.epage 23 en_US
dc.citation.spage 19 en_US
dc.description.conference Cattlemen's Day, 2008, Kansas State University, Manhattan, KS, March 7, 2008 en_US
dc.contributor.authoreid jgrobbel en_US
dc.contributor.authoreid mdikeman en_US
dc.contributor.authoreid hhunt en_US
dc.contributor.authoreid milliken en_US

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