The survival of Escherichia coli O157 on a range of metal surfaces

Wilks, Sandra; Michels, Harold T.; Keevil, C. W.

doi:10.1016/j.ijfoodmicro.2005.04.021

Cited by 309 publications

(256 citation statements)

References 30 publications

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“…In contrast, the stainless steel surface did not show antibacterial properties. In the present study, similarly to Sharifahmadian et al (2013) and other previous studies (Chan et al, 2011;Wilks et al, 2005;Xu et al, 2012;Zhang et al, 2011), E. coli was rapidly killed on copper regardless of the hydrodynamic condition and nutrient load. Thus, despite the higher number of adhered cells on this surface, it may be suitable as a surface material for industry since it can reduce the contamination risk.…”

Section: Resultssupporting

confidence: 89%

“…Stainless steel tubing is often used because of its hygienic status (low soiling level and/or high cleanability) (Jullien et al, 2003) and the ability to resist corrosive damage (Flint et al, 2000). Copper and its alloys have desirable properties for industrial applications due to their high thermal conductivity, corrosion resistance and antimicrobial effects (Grass et al, 2011;Wilks et al, 2005) and have been traditionally used, for instance, in heat exchanger tubing in cane and beet sugar refineries (AISI, 1976). Glass is a surface that has no effect on the final product smell or taste and its transparency is also advantageous (Muller-Steinhagen and Zettler, 2011).…”

Section: Introductionmentioning

confidence: 99%

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The impact of material properties, nutrient load and shear stress on biofouling in food industries

Moreira

Gomes

Simões

et al. 2015

Food and Bioproducts Processing

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Abstract:In the food industry, biofilm formation in pipes, equipment and cooling systems increases maintenance costs, decreases operational efficiencies and is a source of contamination.Shear stress, nutrient load and surface material are important variables affecting the biofilm onset in industry. In this work, the combined impacts of these variables were assessed using three different materials (glass, copper and stainless steel), two nutrient loads (high and low nutrient medium) and two hydrodynamic conditions (static and dynamic). Initial adhesion and biofilm formation were studied in microplates usingEscherichia coli as a model organism.Surface material was the factor with the strongest impact and adhesion/biofilm formation were correlated with surface hydrophobicity. However, the impact of this variable was dependent on the nutrient load and imposed shear stress. It was also found that, for the majority of the situations tested, initial attachment performance is a good predictor of biofilm formation behaviour and that the effects observed during attachment are amplified during biofilm maturation. Since shear stress is a major determinant in cell adhesion, the results of this study may find application in industrial systems operating at flow rates between 0.001 and 600 m 3 h -1 depending on tube material and diameter.

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Section: Resultssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

The impact of material properties, nutrient load and shear stress on biofouling in food industries

Moreira

Gomes

Simões

et al. 2015

Food and Bioproducts Processing

View full text Add to dashboard Cite

show abstract

“…Even slight contamination of surfaces or work areas may cause serious infection [16] . In this way, there are implications for a wide range of food handling and production industries including abattoirs, dairies, chilled food counters in supermarkets, salads and chilled food preparation factories [17] . With such a significant coliform count and the characteristic low infectious dose of E. coli.…”

Section: Discussionmentioning

confidence: 99%

The microbial content of unexpired pasteurized milk from selected supermarkets in a developing country

Anderson

Hinds

Hurditt

et al. 2011

Asian Pacific Journal of Tropical Biomedicine

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“…CuNPs are also considered as an effective nanoparticle against plant and animal pathogens [13]. Most pathogens, including strains of Clostridium difficile, Salmonella enterica, Campylobacter jejuni, Escherichia coli 0157:H7, Pseudomonas aeruginosa, Enterobacter aerogenes, Staphylococcus aureus, methicillin-resistant S. aureus (MRSA), and vancomycin-resistant Enterococcus (VRE), are killed when exposed to the surfaces of copper and copper alloys have been reported by Wilks et al 2005 andCasey et al 2010 in their study [14,15].…”

Section: Introductionmentioning

confidence: 99%

Antibiofilm activity of biogenic copper and zinc oxide nanoparticles-antimicrobials collegiate against multiple drug resistant bacteria: a nanoscale approach

et al. 2016

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The synthesis of biogenic nanoparticles from non-chemical resources has increased the drive toward understanding infection biology. Accordingly, we aimed to address the symbiotic antibiofilm effect of biogenic copper and zinc oxide nanoparticles with antimicrobials against multidrug resistant (MDR) pathogens. The minimum inhibitory concentration (MIC) of copper nanoparticles (CuNPs) and zinc oxide nanoparticles (ZnONPs) at the range from 2 to 128 lg/ml was calculated against Grampositive and Gram-negative pathogenic bacteria using a broth dilution method. Both nanoparticles have prime antibacterial activity compared with standard antibiotics (excluding against P.aeruginosa MTCC 741). A qualitative assessment of biofilm formation and collegial effect was performed using a modified test tube and the microtiter plate-based method by measuring the optical density and time kill of nanoparticles. The results demonstrated efficient antibiofilm activity of CuNPs in its lowest concentration than ZnONPs and antibiotics itself. In addition, significant enhancing antibiofilm effect was also shown by CuNPs in the presence of third generation antibiotics against Gram-negative and Gram-positive bacteria. A scanning electron microscopy (SEM) analysis was used to investigate the effect of the nanoparticles on morphological changes of Staphylococcus aureus. Current data highlights, biogenic CuNPs and ZnONPs could be used as an adjuvant for antibiotics in the treatment of bacterial infections.

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The survival of Escherichia coli O157 on a range of metal surfaces

Cited by 309 publications

References 30 publications

The impact of material properties, nutrient load and shear stress on biofouling in food industries

The impact of material properties, nutrient load and shear stress on biofouling in food industries

The microbial content of unexpired pasteurized milk from selected supermarkets in a developing country

Antibiofilm activity of biogenic copper and zinc oxide nanoparticles-antimicrobials collegiate against multiple drug resistant bacteria: a nanoscale approach

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