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Shelf-life of Prepacked Kimbab and Sandwiches Marketed in Convenience Stores at Refrigerated Condition  

Koo, Min-Seon (Food Safety Research Center, Korea Food Research Institute)
Kim, Yoon-Sook (Food Processing Research Center, Korea Food Research Institute)
Shin, Dong-Bin (Food Analysis Center, Korea Food Research Institute)
Oh, Se-Wook (Food Safety Research Center, Korea Food Research Institute)
Chun, Hyang-Sook (Food Safety Research Center, Korea Food Research Institute)
Publication Information
Journal of Food Hygiene and Safety / v.22, no.4, 2007 , pp. 323-331 More about this Journal
Abstract
This study was designed to estimate self-life of Kimbab and sandwiches marketed in convenience store. While the 12 different type of Kimbab (n=6) and sandwiches (n=6) were kept at $10^{\circ}C$ for 72 hours, quality changes including volatile basic nitrogen, aerobic plate count, pathogens detection and sensorial property was monitored, and effective quality indicators were selected. Volatile basic nitrogen, indicator for protein deterioration was slightly increased during storage periods in all samples. E. coli, Staphylococcus aureus, Salmonella spp. and Vibrio parahaemolyticus were not detected from any of samples. Change of aerobic plate count of Kimbab and sandwiches were increased moderately but increased dramatically after 48 hours of storage. Overall acceptability were maintained over 5, purchasing power limit, for 40 hours in 4 general Kimbab, 48 hours in 2 samgak Kimbab and 42 hours in 2 sandwiches. Shelf-life of each item was calculated from regression equation between reference limit from effective quality indicators, aerobic plate count and sensory property, and storage period. Estimated shelf-lives of general Kimbab were $15{\sim}33$ hours, samgak Kimbab were 32 hours and sandwiches were $27{\sim}30$ hours at $10^{\circ}C$ refrigerated condition.
Keywords
Ready-to-eat foods; Shelf-life;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
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