Cleaning and decontamination efficacy of wiping cloths and silver dihydrogen citrate on food contact surfaces (original) (raw)
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Efficiency of cleaning and disinfection of surfaces: correlation between assessment methods
Revista brasileira de enfermagem
to assess the correlation among the ATP-bioluminescence assay, visual inspection and microbiological culture in monitoring the efficiency of cleaning and disinfection (C&D) of high-touch clinical surfaces (HTCS) in a walk-in emergency care unit. a prospective and comparative study was carried out from March to June 2015, in which five HTCS were sampled before and after C&D by means of the three methods. The HTCS were considered dirty when dust, waste, humidity and stains were detected in visual inspection; when ≥2.5 colony forming units per cm2 were found in culture; when ≥5 relative light units per cm2 were found at the ATP-bioluminescence assay. 720 analyses were performed, 240 per method. The overall rates of clean surfaces per visual inspection, culture and ATP-bioluminescence assay were 8.3%, 20.8% and 44.2% before C&D, and 92.5%, 50% and 84.2% after C&D, respectively (p<0.001). There were only occasional statistically significant relationships between methods. the methods d...
Luminescence, 1999
The minimum bacterial detection limits and operator reproducibility of the Biotrace Clean-Trace 2 Rapid Cleanliness Test and traditional hygiene swabbing were determined. Areas (100 cm 2) of food grade stainless steel were separately inoculated with known levels of Staphylococcus aureus (NCTC 6571) and Escherichia coli (ATCC 25922). Surfaces were sampled either immediately after inoculation while still wet, or after 60 min when completely dry. For both organisms the minimum detection limit of the ATP Clean-Trace 2 Rapid Cleanliness Test was 10 4 cfu/100 cm 2 (p`0.05) and was the same for wet and dry surfaces. Both organism type and surface status (i.e. wet or dry) influenced the minimum detection limits of hygiene swabbing, which ranged from 10 2 cfu/100 cm 2 to b10 7 cfu/100 cm 2. Hygiene swabbing percentage recovery rates for both organisms were less than 0.1% for dried surfaces but ranged from 0.33% to 8.8% for wet surfaces. When assessed by six technically qualified operators, the Biotrace Clean-Trace 2 Rapid Cleanliness Test gave superior reproducibility for both clean and inoculated surfaces, giving mean coefficients of variation of 24% and 32%, respectively. Hygiene swabbing of inoculated surfaces gave a mean CV of 130%. The results are discussed in the context of hygiene monitoring within the food industry.
Comparison of cleaning fabrics for bacterial removal from food-contact surfaces
Food Control, 2013
Food-contact surfaces are highly contaminated with microorganism and great sources for transmission of foodborne pathogens. It is important to eliminate bacteria using appropriate sanitizing approaches to minimize cross-contamination during food preparation and/or consumption and reduce the risk of foodborne diseases. The objective of this study was to compare the removal efficiency of bacteria on food-contact surfaces by different cleaning cloths. Commercially available blended cellulose/cotton cloth, microfiber, scouring cloth, nonwoven fabric and terry towel were used. Stainless steel and Formica laminate surfaces were inoculated with Listeria monocytogenes in ready-to-eat turkey slurry and the surface was wiped with different cloths. The remaining bacteria on the food-contact surfaces and bacteria immersed in each cloth were enumerated. Overall significant reductions were observed on stainless steel and Formica laminate surfaces by 0.92e2.62 and 2.21e3.44 log CFU/cm 2 reduction, respectively (P < 0.05). Among all cloths, blended cellulose/cotton cloths showed the highest removal efficiency by 2.53e2.62 (stainless steel) and 3.16e3.44 (Formica) log CFU/cm 2 reduction. Bacteria captured by each cloth did not show significant differences with the range of 5.40e5.69 log CFU/cm 2 (stainless steel) and 2.78e3.62 log CFU/cm 2 (Formica). ATP bioluminescence assay result was significantly reduced by cleaning cloths (P < 0.05) while the relative luminescence unit (RLU) value was higher on stainless steel by 2547e6073 RLU than on Formica by 208e503 RLU. These results indicate that the performance of cleaning cloths varied for the removal of bacteria and food debris depending on the fabric material and processing pattern.
Effectiveness of Surface Cleaning and Disinfection in a Brazilian Healthcare Facility
The open nursing journal, 2018
Failures in the processes of cleaning and disinfecting health service surfaces may result in the spread and transfer of pathogens that are often associated with healthcare-related infections and outbreaks. To assess the effectiveness of environmental surface cleaning and disinfection in a hospital clinic. The study was conducted in a nursing ward with 45 beds. A total of 80 samples from five high-touch surfaces were evaluated before and after cleaning and disinfection, using the following methods: visual inspection, adenosine triphosphate bioluminescence assay, aerobic colony count, colony count, and evaluation of resistance to methicillin. The data analysis used nonparametric comparative and correlative tests to observe any differences in the pre- and post- cleaning and disinfection results for the surfaces assessed. Effective cleaning and disinfection had a significant effect on only two surfaces when measured for the presence of adenosine triphosphate, the inner bathroom door han...
Journal of Hospital Administration, 2019
Background: Healthcare associated infections are a leading cause of illness and death in the United States and across the world. Environmental surfaces are considered non-critical, although recent evidence suggests that the built environment may contribute to the transmission of pathogens. Ineffective cleaning and disinfecting of environmental non-critical surfaces may increase risk of transmitting nosocomial pathogens leading to hospital acquired infections among hospital patients.Objective: This systematic review identifies elements of cleaning and disinfecting protocols, synthesizing the evidence to evaluate cleaning protocols that effectively reduce surface contamination and minimize risk of hospital acquired illness.Methods: A systematic literature review was conducted with a clearly formulated research question and systematic approach to identify publications, select relevant studies, critically appraise the research through analysis of reported data, and reported the results ...
Assessment of disinfection of hospital surfaces using different monitoring methods
Revista Latino-Americana de Enfermagem, 2015
OBJECTIVE: to assess the efficiency of cleaning/disinfection of surfaces of an Intensive Care Unit.METHOD: descriptive-exploratory study with quantitative approach conducted over the course of four weeks. Visual inspection, bioluminescence adenosine triphosphate and microbiological indicators were used to indicate cleanliness/disinfection. Five surfaces (bed rails, bedside tables, infusion pumps, nurses' counter, and medical prescription table) were assessed before and after the use of rubbing alcohol at 70% (w/v), totaling 160 samples for each method. Non-parametric tests were used considering statistically significant differences at p<0.05.RESULTS: after the cleaning/disinfection process, 87.5, 79.4 and 87.5% of the surfaces were considered clean using the visual inspection, bioluminescence adenosine triphosphate and microbiological analyses, respectively. A statistically significant decrease was observed in the disapproval rates after the cleaning process considering the t...
Correlation Between Surface Cleaning and Disinfection Methods in an Emergency Room
2021
To evaluate the correlation between microbiological culture, ATP tests by bioluminescence and visual inspection for monitoring the surface cleaning and disinfection in an emergency room. Methods: This is a prospective, analytical study with a quantitative approach. Data analysis was guided by the following tests: Spearman's correlation, Fisher 's exact test and receiver operating characteristic (ROC) curve. Results: There was a correlation between ATP quantification methods and microbial count for the women's bathroom door handle (ρ = 0.526; p= 0.008). In this study, considering the ROC curve, the ATP value below 20 RLU is suggested to classify surfaces as approved in the emergency room. Conclusion: Using different methods of monitoring the cleaning and disinfection process is essential, considering that each method has a different purpose.