| Autor: |
Melo, D. H., Souza, B. V., Nascimento, J. S., Amorim, A. M. B., Medeiros, L. M., Mattoso, J. M. V. |
| Předmět: |
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| Zdroj: |
International Food Research Journal; Apr2018, Vol. 25 Issue 2, p880-883, 4p |
| Abstrakt: |
Until a few decades ago, Serratia marcescens was considered a harmless microorganism. Although it is known that this bacteria has clinical importance and can cause infections and diarrhea in neonates and immunodeficient patients, its presence in food is often neglected, when compared to classic Gram-negative pathogens. In this study, we analyzed different samples of the most consumed dairy products in Rio de Janeiro, Brazil, and fifty eight isolates belonging to Enterobacteriaceae family were identified. Among them, twenty isolates presented a characteristic reddish color and its identification as S. marcescens was confirmed by an automated microbial identification system (VITEK 2). All isolates expressed resistance to at least one of the antibiotic tested and 11(55%) of them were multidrug resistant (MDR). Using a chromogenic media for culture-based screening, 4 (20%) isolates expressed the phenotype for reduced susceptibility to carbapenems and 10 (50%) for the production of extended spectrum β-lactamase. Biofilm formation was also investigated by Congo red agar method and seventeen isolates (85%) were shown to be producers. Since S. marcescens can also be transmitted by food ingestion, and as dairy products are commonly consumed, this works reports a possible risk of transmission of MDR isolates to consumers, specially, to those immunocompromised. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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