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http://dx.doi.org/10.3746/jkfn.2010.39.11.1719

Verification of the Suitability of the ATP Luminometer as the Monitoring Tool for Surface Hygiene in Foodservices  

Kim, Yang-Sook (Dept. of Food and Nutrition, Changwon National University)
Moon, Hey-Kyung (Dept. of Food and Nutrition, Changwon National University)
Kang, Seong-Il (3M Korea Ltd., Health Care Business)
Nam, Eun-Jeong (Dept. of HACCP Support, Korean Health Industry Development Institute)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.39, no.11, 2010 , pp. 1719-1723 More about this Journal
Abstract
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/$cm^2$ to 64693 RLU/$cm^2$ on knives, from 0.1 RLU/$cm^2$ to 6743.6 RLU/$cm^2$ on cutting boards and from 31 RLU/$cm^2$ to 465635 RLU/$cm^2$ on the rubber gloves. APC ranged from 0 CFU/$cm^2$ to 166667 CFU/$cm^2$ on knives, from 0 CFU/$cm^2$ to 1000 CFU/$cm^2$ on cutting boards and from 0 CFU/$cm^2$ to 730000 CFU/$cm^2$ 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.
Keywords
ATP bioluminescence; surface hygiene; monitoring tool;
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