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KMID : 1134820100390111719
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Journal of the Korean Society of Food Science and Nutrition
2010 Volume.39 No. 11 p.1719 ~ p.1723
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Verification of the Suitability of the ATP Luminometer as the Monitoring Tool for Surface Hygiene in Foodservices
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Kim Yang-Sook
Moon Hye-Kyung
Kang Seong-Il
Nam Eun-Jeong
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Abstract
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The purpose of this study was to verify feasibility of using a ATP Luminometer, real-time hygiene monitoring tool for food contact surfaces in foodservices. For this, 54 cutting boards, 70 knives, 21 rubber gloves in 4 institutional foodservices were studied. ATP (RLU: relatively light unit) values by ATP Luminometer were compared with APC (CFU: colony forming unit) of swabbing culture method using aerobic count plates of 3M petrifilm. ATP ranged from 0 RLU/㎠ to 64693 RLU/㎠ on knives, from 0.1 RLU/㎠ to 6743.6 RLU/㎠ on cutting boards and from 31 RLU/㎠ to 465635 RLU/㎠ on the rubber gloves. APC ranged from 0 CFU/㎠ to 166667 CFU/㎠ on knives, from 0 CFU/㎠ to 1000 CFU/㎠ on cutting boards and from 0 CFU/㎠ to 730000 CFU/㎠ on the rubber gloves. To express the degree of association between ATP and APC, a linear regression was performed. There were significant positive correlations found between log RLU and log CFU on the knives (r=0.84, p＜0.001), the cutting boards (r=0.79, p＜0.001), the rubber gloves (r=0.78, p＜0.001). Results of this study showed the possibility that ATP bioluminescence technique can be used as the monitoring tool for surface hygiene in foodservices.
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KEYWORD
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ATP bioluminescence, surface hygiene, monitoring tool
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