Journal
EUROPEAN FOOD RESEARCH AND TECHNOLOGY
Volume 215, Issue 3, Pages 194-199Publisher
SPRINGER-VERLAG
DOI: 10.1007/S00217-002-0554-6
Keywords
sous vide; modified atmosphere packaging; warm-holding; cook-chill; vitamin retention
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In this study different simulated meal-service systems were compared with respect to vitamin B-1, B-2 and B-6 retention, and cooking yield in pork roasts. Initially the roasts were cooked traditionally or sous vide. No significant differences were observed between cooking methods. Further processing included warm-holding, conventional cook-chill, modified atmosphere packaging (MAP) and sous vide. Compared to retention in the freshly cooked samples, vitamin B-2 retention remained unaffected, irrespective of the meal-service system used and storage period. As regards vitamin B-1 and vitamin B-6, retentions declined significantly, by 14% and 21% respectively during 3 h of warm-holding, and by 11% and 19% respectively after 1 day of storage and subsequent reheating (cook-chill, MAP and sous vide). Vitamin B-1 retention declined by an extra 4% during storage for 14 days (sous vide) (not significant) It is concluded that conventional and enhanced meal-service systems produce roasts with similar quality attributes. Adjustment factors of 15% and 20% for vitamin B-1 and B-6 respectively are suggested, in addition to the losses caused by the initial heat treatment.
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