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KMID : 1011620160320060724
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Korean Journal of Food and Cookey Science
2016 Volume.32 No. 6 p.724 ~ p.733
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Microbiological Quality and Safety Assessment of Salad in Lunchbox"s according to the Holding Time and Temperature - Convenience and Franchise Stores -
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Choi Jung-Hwa
Wang Tae-Whan
Kwak Tong-Kyung
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Abstract
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Purpose: This study was to evaluate the microbiological quality of salads in lunchbox"s based on the holding time and temperature at convenience and franchise stores.
Methods: Cabbage salad and crab meat salad were targeted for microbiological quality assessment. They were tested for aerobic plate counts, coliforms, Escherichia coli, Staphylococcus aureus and Enterobacteriaceae and assessment were performed by Korean Food Standards Codex.
Results: In cabbage salad at convenience franchise store"s at 5°C, the aerobic plate counts did not exceed the Korean Food Standards Codex. For cabbage salad stored at 25°C, the aerobic plate counts was 5.08 log CFU/g we hours after purchase, which exceeded the Korean Food Standards Codex. In case of cabbage salad in franchise store, the E. coli and S. aureus count exceeded Korean Food Standards Codex 3 hours after purchase. Microbiological analysis did not exceed the Korean Food Standards Codex at 5°C in crab meat salad in convenience store. At 25°C, the aerobic plate count was detected at 4.45 log CFU/g after 32 hours, coliforms, E. coli, and S. aureus did not detect, but Enterobacteriaceae was found to be 2.34 log CFU/g after 9 hours in franchise store"s crab salad. Coliforms was detected at 1.18 log CFU/g after 3 hours, and S. aureus was detected at 2.04 log CFU/g after 6 hours at 25°C in the franchise store. The lunchbox" salad under cold storage (5°C) generally meet the Korean Food Standards Codex.
Conclusion: The results indicate an urgent need to implement proper management guidelines for the production of lunchbox foods to ensure microbiological safety, and to improve the shelf life from production to consumption.
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KEYWORD
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microbiological quality, lunchbox, cabbage salad, crab meat salad
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