Evaluation of growth/no growth interface of Listeria monocytogenes growing on stainless steel surfaces, detached from biofilms or in suspension, in response to pH and NaCl
| Autor: | Sol Schvartzman, C Belessi, Kieran Jordan, Antonia S. Gounadaki, Panagiotis N. Skandamis |
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| Rok vydání: | 2011 |
| Předmět: |
Sodium
Population chemistry.chemical_element Sodium Chloride Biology medicine.disease_cause Microbiology Tryptic soy broth chemistry.chemical_compound Suspensions Listeria monocytogenes medicine Yeast extract Food science education Incubation education.field_of_study Inoculation Biofilm General Medicine Hydrogen-Ion Concentration Stainless Steel chemistry Biofilms Food Microbiology Food Science |
| Zdroj: | International Journal of Food Microbiology. 145:S53-S60 |
| ISSN: | 0168-1605 |
| Popis: | The present study aimed to describe the growth/no growth interface of Listeria monocytogenes at three potential states of growth in industrial environments, namely attached, (Att), detached (Det) from a biofilm, or in a planktonic state (suspended; Plan). A 3-strain composite of L. monocytogenes cells was left to colonize stainless steel (SS) surfaces in tryptic soy broth supplemented with 0.6% yeast extract (TSBYE) at 20 °C for 72 h and then transferred to TSBYE at 30 different pH and NaCl concentrations, which were renewed every two days during incubation at 10 °C. Survival of attached population was observed at optimal conditions (pH 7.2, a(w) 0.996), whereas at 4.5-8.0% salt and/or pH |
| Databáze: | OpenAIRE |
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