Effectiveness of domestic antibacterial products in decontaminating food contact surfaces

De Vere, Elizabeth and Purchase, Diane (2007) Effectiveness of domestic antibacterial products in decontaminating food contact surfaces. Food Microbiology, 24 (4). pp. 425-430. ISSN 0740-0020

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Four commercially available antibacterial products (two wipes and two sprays) were tested under laboratory conditions on a range of food contact surfaces (wood, glass, plastic, Microban® incorporated plastic). The products’ effectiveness at preventing cross-contamination of Escherichia coli and Staphylococcus aureus and the influence of surface type and drying time were assessed. Survival of the bacterial culture (approximately 400 colonies per 8 cm2) on the above preparation surfaces was determined using an in situ nitroblue tetrazolium (NBT) method. In the absence of any antibacterial products, both bacteria survived up to 120 min on all test surfaces with glass and plastic showing no reduction in bacterial number. The order of survival is: glass>plasticMicroban® incorporated plastic>wood (<8%). The length of drying time did not affect the survival of either bacterium on glass and plastic surfaces. On wood and Microban® incorporated plastic, E. coli appeared to be more sensitive to drying time than S. aureus. Only plastic appeared to affect the effectiveness of the antibacterial products, where the reduction in bacterial number was significantly lower than the other test surfaces (p<0.05). The overall results suggest the antibacterial products are effective in disinfecting food preparing surfaces, provided products instructions are carefully followed.

Item Type:Article
Research Areas:A. > School of Science and Technology > Natural Sciences
ID Code:2713
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Deposited On:24 Aug 2009 07:09
Last Modified:24 Mar 2015 12:05

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