The effects of different hygiene procedures in reducing bacterial contamination in a model domestic kitchen
- 30 June 2015
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Applied Microbiology
- Vol. 119 (2), 582-593
- https://doi.org/10.1111/jam.12869
Abstract
Few studies have compared the effectiveness of hygienic cleaning under simulated use conditions. This study compares commonly used and novel cleaning methods for food contact and hand contact surfaces in kitchens. We report results from two surveys on Norwegian consumers' cleaning procedures. Laboratory models involving cutting boards, tap handles and mobile phones contaminated with Escherichia coli and Staphylococcus aureus were used to compare the hygiene efficacy of commonly used cleaning methods together with new technologies (sprays, single-use wipes, and chlorine-based disinfectants). Commonly used cleaning methods produced a mean log10 reduction (LR) in contamination of 1.5-2.5. The efficacy could be improved by drying or including a disinfection step (mean LR 3.1-4.6). Cleaning of mobile phones was common and was improved by including humidity (1.5-1.9 mean LR). In many situations, traditional methods used by consumers may be sufficient to hygienically clean surfaces. However, in some situations, such as where there are infected or immune-compromised individuals, or where high risk foods are being handled, hygiene practices resulting in higher LR should be recommended. This study demonstrates that data from models simulating use conditions are required to estimate the effectiveness of detergent-based removal practices and how these can be enhanced by inactivation processes such as drying and disinfection to ensure that contamination from food-borne pathogens is reduced to acceptable levels to prevent infection transmission.Keywords
Funding Information
- Norwegian Research Council
- Fund for Research Levy on Agricultural products
- Norwegian Agricultural Authority
This publication has 41 references indexed in Scilit:
- Food Safety in Home Kitchens: A Synthesis of the LiteratureInternational Journal of Environmental Research and Public Health, 2013
- Efficacies of Cleaning Methods for Decontaminating Vibrio parahaemolyticus on the Surfaces of Cutting Boards Cross‐Contaminated from Grated Fish FilletJournal of Food Safety, 2012
- Mobile phones and nosocomial infectionsInternational Journal of Infection Control, 2012
- Methicillin-resistantStaphylococcus aureus(MRSA) in food production animalsEpidemiology and Infection, 2010
- New challenges in professional cleaning: hygiene quality and monitoring of surfaces in private domestic homesInternational Journal of Consumer Studies, 2009
- Are we aware how contaminated our mobile phones with nosocomial pathogens?Annals of Clinical Microbiology and Antimicrobials, 2009
- Effectiveness of domestic antibacterial products in decontaminating food contact surfacesFood Microbiology, 2007
- Efficacy of electrolysed oxidizing water in inactivating Vibrio parahaemolyticus on kitchen cutting boards and food contact surfacesLetters in Applied Microbiology, 2006
- Bacterial contamination of domestic kitchens over a 24‐hour periodBritish Food Journal, 2005
- Investigations of the effectiveness of detergent washing, drying and chemical disinfection on contamination of cleaning clothsJournal of Applied Bacteriology, 1990