Assessing biofilm formation by Listeria monocytogenes strains

Harvey, J.; Keenan, Katherine; Gilmour, A.

doi:10.1016/j.fm.2006.06.006

Cited by 202 publications

(158 citation statements)

References 35 publications

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“…Gram-negative bacteria showed significantly higher adhesion to polystyrene surface (p<0.05) than Gram-positive bacteria. Differences in adhesion were not related to the source of isolation, but rather to the strain, which confirms earlier findings (17,(25)(26)(27). In general, the strains showed low adhesion potential, which could be related to their hydrophilic properties.…”

Section: Resultssupporting

confidence: 86%

Effects of natural antimicrobials on bacterial cell hydrophobicity, adhesion, and zeta potential / Vpliv naravnih protimikrobnih snovi na bakterijsko hidrofobnost, adhezijo in zeta potencial

Kurinčič

Jeršek

Klančnik

et al. 2016

Archives of Industrial Hygiene and Toxicology

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Interactions between bacterial cells and contact materials play an important role in food safety and technology. As bacterial strains become ever more resistant to antibiotics, the aim of this study was to analyse adhesion of selected foodborne bacterial strains on polystyrene surface and to evaluate the effects of natural antimicrobials on bacterial cell hydrophobicity, adhesion, and zeta potential as strategies of adhesion prevention. The results showed strain-specific adhesion rate on polystyrene. The lowest and the highest adhesion were found for two B. cereus lines. Natural antimicrobials ferulic and rosmarinic acid substantially decreased adhesion, whereas the effect of epigallocatechin gallate was neglectful. Similar results were found for the zeta potential, indicating that natural antimicrobials reduce bacterial adhesion. Targeting bacterial adhesion using natural extracts we can eliminate potential infection at an early stage. Future experimental studies should focus on situations that are as close to industrial conditions as possible.

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Section: Resultssupporting

confidence: 86%

Effects of natural antimicrobials on bacterial cell hydrophobicity, adhesion, and zeta potential / Vpliv naravnih protimikrobnih snovi na bakterijsko hidrofobnost, adhezijo in zeta potencial

Kurinčič

Jeršek

Klančnik

et al. 2016

Archives of Industrial Hygiene and Toxicology

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“…For instance, plate counting has been used to quantify sessile cells of gram-positive bacteria on abiotic surfaces [3]. Also, biofilms of B. cereus have been quantified by using the microplate adhesion method [4], while their structures have been investigated by scanning electron microscopy (SEM) [5], or laser-scanning confocal microscopy (LSCM) [6]. Chemistry characterization of surface by goniometry study [7,8] was recently developed and used in biofilm interaction on substratum.…”

Section: Introductionmentioning

confidence: 99%

Impact of Lactococcus lactis spp. lactis Bio Adhesion on Pathogenic Bacillus cereus Biofilm on Silicone Flowing System

2013

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Bacillus cereus is a food pathogen that can attach on most of the surfaces and form biofilms, which facilitate the persistence and resistance toward antimicrobials. The aims of this study were (i) to characterize the structural dynamics of B. cereus sessile growth in two nutritional environments (with or without a nutrient flow), and (ii) to evaluate the impact of bio adhesion of Lactococcus lactis on B. cereus biofilm. Significantly greater biofilm volume and thickness were observed under dynamic conditions than under static conditions after 48 h and B. cereus biofilm was highly organized. The variation of physico-chemical characteristics of silicone by B. cereus bio adhesion favours the adhesion of hydrophilic Lc. lactis on the surface adhered by biofilm. Lc. lactis was able to adhere to silicone surface and produce biofilm obviously exhibited a significant reduction of B. cereus adhered cells up to nine orders of magnitude after 48 h of contact with competitive activity for nutrient and oxygen. This study constitutes a step ahead in developing strategies to prevent microbial colonization of silicone with lactococcal protective biofilm.

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“…Estas biopelículas sirven que son una fuente constante de bacterias causantes de deterioro de las maquinarias o de los alimentos y de bacterias patógenas para humanos de importancia en salud pública. (1,(6)(7)(8) Las biopelículas y sus microorganismos son muy difíciles de erradicar debido a que son extremadamente resistentes a los desinfectantes (11,12). Por lo anterior las industrias deben tener implementados muy buenos programas de limpieza y desinfección para su eliminación.…”

Section: Introductionunclassified

Resistencia a antibióticos de bacterias aisladas de biopelículas en una planta de alimentos

Vanegas¹,

Correa²,

Morales³

et al. 2009

Rev MVZ Córdoba

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RESUMENObjetivo. Evaluar la resistencia a antibióticos y la capacidad de formación de biopelículas de bacterias aisladas en una planta de producción de alimentos. Materiales y métodos. Se tomaron muestras de 3 zonas diferentes, en una planta procesadora de alimentos; en la lavadora de canastas, la mesa de producción y en la banda empacadora. Se aislaron e identificaron las bacterias presentes en cada una de las tres zonas y se determinó la capacidad formadora de biopelículas por medio de cuantificación celular. Asimismo se evaluó la resistencia de cada una de las bacterias aisladas frente a ocho diferentes antibióticos. Resultados. Se recuperaron 29 cepas, correspondientes a 13 géneros diferentes, los cuales fueron todos formadores de biopelículas. Se encontró que cerca del 50% de las bacterias aisladas fueron resistentes a antibióticos como la penicilina G y vancomicina. Adicionalmente se evidenció un alto grado de multirresistencia a los diferentes antibióticos. Conclusiones. La alta multirresistencia encontrada a antibióticos entre las bacterias analizadas podría ser un problema para salud pública ya que pueden ser transmitidas por alimentos. De igual manera es de gran importancia la capacidad de producción de biopelículas de la microbiota analizada así como la alta concentración de bacterias entéricas y ambientales, lo que sugiere deficiencia del programa de limpieza y desinfección de la planta.Palabras clave: Biopelículas, adhesión bacteriana, resistencia, antimicrobianos, contaminación alimentaria.

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Assessing biofilm formation by Listeria monocytogenes strains

Cited by 202 publications

References 35 publications

Effects of natural antimicrobials on bacterial cell hydrophobicity, adhesion, and zeta potential / Vpliv naravnih protimikrobnih snovi na bakterijsko hidrofobnost, adhezijo in zeta potencial

Effects of natural antimicrobials on bacterial cell hydrophobicity, adhesion, and zeta potential / Vpliv naravnih protimikrobnih snovi na bakterijsko hidrofobnost, adhezijo in zeta potencial

Impact of Lactococcus lactis spp. lactis Bio Adhesion on Pathogenic Bacillus cereus Biofilm on Silicone Flowing System

Resistencia a antibióticos de bacterias aisladas de biopelículas en una planta de alimentos

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