The importance of laboratory water quality for studying initial bacterial adhesion during NF filtration processes

Semiao, Andrea; Habimana, Olivier; Cao, Hui; Heffernan, Rory; Safari, Ashkan; Casey, Eoin

doi:10.1016/j.watres.2013.03.020

Cited by 28 publications

(18 citation statements)

References 43 publications

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“…They consisted mostly of live bacterial cells. Semião et al [115] showed that a conditioning cake layer deposited on the NF membrane surface due to [4,110,111], and hence linked to the fouling layer that forms on the membranes surface. Moreover, if this fouling layer forms at a higher rate than bacterial adhesion and biofilm formation, it is critically important to assess the methodologies for quantifying the performance of novel antibiofouling membranes in the context of full scale operation as opposed to laboratory testing.…”

Section: Conditioning Layersmentioning

confidence: 99%

The role of cell-surface interactions in bacterial initial adhesion and consequent biofilm formation on nanofiltration/reverse osmosis membranes

Habimana

Semiao

Casey

2014

Journal of Membrane Science

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233

113

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Section: Conditioning Layersmentioning

confidence: 99%

The role of cell-surface interactions in bacterial initial adhesion and consequent biofilm formation on nanofiltration/reverse osmosis membranes

Habimana

Semiao

Casey

2014

Journal of Membrane Science

Self Cite

233

113

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“…Each measurement was performed in triplicate. The cross-flow test unit used was a modified version of the unit found in a previous study (Semião et al (2013)) and the schematic and operational details can be found in the Supporting Information SI.…”

Section: Microbial Adhesion To Solventsmentioning

confidence: 99%

Bacterial adhesion onto nanofiltration and reverse osmosis membranes: Effect of permeate flux

2014

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Publication informationWater Research, Publisher Elsevier Item record/more information http://hdl.handle.net/10197/5880 Publisher's statementThis is the author's version of a work that was accepted for publication in Water Research. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Water Research (VOL 63, ISSUE 2014, (2014

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“…In general, surface roughness can create conditions for the favorable initial adhesion of a single cell, possibly in a topological feature and this in turn forms the seed for the subsequent growth of a micro-colonies (Semião et al, 2013).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Disinfection efficacy over yeast biofilms of juice processing industries

Tarifa

Lozano

Brugnoni

2018

Food Research International

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Membrane separation systems represent a hot - spot for biofilm formation in juice industries. Sodium hypochlorite (NaOCl) has been traditionally the disinfectant of choice; however, its effectiveness over well-established biofilms is limited. In this work the study of biofilm formation on ultrafiltration membranes was proposed. The effectiveness of cleaning and disinfection procedures commonly used in juice industry was tested on the removal and killing of cells. The species used (Rhodotorula mucilaginosa, Candida krusei, Candida kefyr and Candida tropicalis) were isolated from ultrafiltration modules of a clarified apple juice industry. Industrial concentrations of NaOCl (200mgCL∙L) showed to be effective against planktonic cultures with >4 log reductions, whereas their overall efficiency against adhered cells was smaller. Recovery of viable cell counts to initial numbers was evidenced regardless of the time of colonization. The topography of the surface showed to have an impact on the efficiency of the disinfectant, presenting membranes smaller log reductions than stainless steel (~1.09-1.53logCFU). At 200mgCl∙L only membrane's cross flow recovery was reached with no long-term effect over the attached cells. The overall results demonstrated the recalcitrance of these biofilms to typical cleaning and disinfection process which may confer them with a selective advantage.

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The importance of laboratory water quality for studying initial bacterial adhesion during NF filtration processes

Cited by 28 publications

References 43 publications

The role of cell-surface interactions in bacterial initial adhesion and consequent biofilm formation on nanofiltration/reverse osmosis membranes

The role of cell-surface interactions in bacterial initial adhesion and consequent biofilm formation on nanofiltration/reverse osmosis membranes

Bacterial adhesion onto nanofiltration and reverse osmosis membranes: Effect of permeate flux

Disinfection efficacy over yeast biofilms of juice processing industries

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