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Título: | Removal of Listeria monocytogenes dual-species biofilms using combined enzyme-benzalkonium chloride treatments |
Autor: | Rodríguez-López, P. CSIC ORCID; Carballo-Justo, Alba; Draper, Lorraine A.; López Cabo, Marta CSIC ORCID | Palabras clave: | Benzalkonium chloride Biofilms Disinfection Enzymes Fluorescence microscopy Listeria monocytogenes |
Fecha de publicación: | 2017 | Editor: | Taylor & Francis | Citación: | Biofouling 33(1): 45-58 (2017) | Resumen: | The effects of pronase (PRN), cellulase (CEL) or DNaseI alone or combined with benzalkonium chloride (BAC) against Listeria monocytogenes-carrying biofilms were assayed. The best removal activity against L. monocytogenes–Escherichia coli biofilms was obtained using DNaseI followed by PRN and CEL. Subsequently, a modified logistic model was used to quantify the combined effects of PRN or DNaseI with BAC. A better BAC performance after PRN compared to DNaseI eradicating L. monocytogenes was observed. In E. coli the effects were the opposite. Finally, effects of DNaseI and DNaseI–BAC treatments were compared against two different L. monocytogenes-carrying biofilms. DNaseI–BAC was more effective against L. monocytogenes when co-cultured with E. coli. Nonetheless, comparing the removal effects after BAC addition, these were higher in mixed-biofilms with Pseudomonas fluorescens. However, a high number of released viable cells was observed after combined treatments. These results open new perspectives of enzymes as an anti-biofilm strategy for environmental pathogen control | Descripción: | 14 páginas, 7 figuras, 2 tablas | Versión del editor: | http://dx.doi.org/10.1080/08927014.2016.1261847 | URI: | http://hdl.handle.net/10261/142498 | DOI: | 10.1080/08927014.2016.1261847 | ISSN: | 0892-7014 | E-ISSN: | 1029-2454 |
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Removal_Listeria_monocytogenes_2017.pdf | 1,35 MB | Adobe PDF | Visualizar/Abrir |
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