The ability of meat borne anti-Listeria Lactobacillus to form biofilms under different in vitro conditions and on abiotic surfaces was investigated. Biofilm formation by the adhesion to polystyrene microtiter plates was determined, this being higher for Lactobacillus curvatus CRL1532 and CRL705 and Lactobacillus sakei CRL1862. The physicochemical properties of the cell surface were relatively hydrophilic and acidic in character; L. sakei CRL1862 exhibiting the strongest autoaggregation. The adhesion of lactobacilli to stainless steel (SS) and polytetrafluoroethylene (PTFE) supports at 10°C was found to be maximal for L. sakei CRL1862 on SS after 6 days. When biofilm architecture was characterized by epifluorescence and SEM, L. sakei CRL1862 homogeneously covered the SS surface while cell clusters were observed on PTFE; the extracellular polymeric substance matrix adapted to the topography and hydrophilic/hydrophobic characteristics of each material. The feasibility of L. sakei CRL1862 to form biofilm on materials used in meat processing highlights its potential as a control strategy for Listeria monocytogenes biofilms.
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http://dx.doi.org/10.1016/j.meatsci.2013.07.010 | DOI Listing |
Int J Food Microbiol
July 2019
Centro de Referencia para Lactobacilos (CERELA), CONICET, Chacabuco 145, T4000ILC Tucumán, Argentina. Electronic address:
J Food Sci Technol
February 2018
1Centro de Referencia para Lactobacilos (CERELA), Chacabuco 145, T4000ILC Tucumán, Argentina.
Dipping solutions containing bacteriocins produced by CRL705 and CRL1862 (Bact705/1862), nisin and organic acids (lactic acid, LA; acetic acid, AA) were tested alone or in combination against inoculated by immersion on vacuum-packaged frankfurters stored at 10 °C during 36 days. LA/AA solution (2.5% v/v each) reduced pathogen population by 1.
View Article and Find Full Text PDFInt J Food Microbiol
October 2017
Centro de Referencia para Lactobacilos (CERELA), CONICET, Chacabuco 145, T4000ILC Tucumán, Argentina. Electronic address:
Some lactic acid bacteria have the ability to form biofilms on food-industry surfaces and this property could be used to control food pathogens colonization. Lactobacillus sakei CR1862 was selected considering its bacteriocinogenic nature and ability to adhere to abiotic surfaces at low temperatures. In this study, the proteome of L.
View Article and Find Full Text PDFFEMS Microbiol Lett
June 2016
Laboratorio de Tecnología y Desarrollo. Centro de Referencia para Lactobacilos (CERELA), Chacabuco 145, T4000ILC, Tucumán, Argentina.
The effect of the bacteriocin-producing Lactobacillus sakei CRL1862 and its bacteriocin in the control of Listeria biofilm formation on industrial surfaces at 10°C was investigated. A screening among different Listeria species was performed allowing selecting L. monocytogenes FBUNT for its use as a biofilm producer on stainless steel (SS) and polytetrafluoroe-thylene (PTFE) surfaces.
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