Lactic Acid Bacteria as Biological Control of Staphylococcus aureus in Coalho Goat Cheese
| Autor: | Francesca Silva Dias, Rânmilla Cristhina Santos Castro, Tayla Marielle Antunes Correia, Eline Almeida Rodrigues de Souza, Jane Viana de Souza, Anay Priscilla David de Oliveira |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
technofunctional properties of Enterococcus faecium
General Chemical Engineering Gram-positive bacteria lcsh:Biotechnology medicine.disease_cause Industrial and Manufacturing Engineering Microbiology 0404 agricultural biotechnology Antibiotic resistance multidrug resistance lcsh:TP248.13-248.65 medicine Original Scientific Papers staphylococcal enterotoxins coalho goat cheese biology lcsh:TP368-456 microbiological safety Pathogenic bacteria pathogens 04 agricultural and veterinary sciences biology.organism_classification 040401 food science Multiple drug resistance lcsh:Food processing and manufacture Staphylococcus aureus Listeria Bacteria Food Science Biotechnology Enterococcus faecium |
| Zdroj: | Food Technology and Biotechnology Food Technology and Biotechnology, Vol 56, Iss 3, Pp 431-440 (2018) |
| ISSN: | 1334-2606 1330-9862 |
| Popis: | SUMMARY The aim of this study is to investigate the bacterial population in coalho goat cheese produced in the semi-arid northeast region of Brazil, to analyse the antibiotic resistance profiles of the identified pathogenic bacteria, to detect the staphylococcal enterotoxin genes and to evaluate the addition of autochthonous lactic acid bacteria (LAB) with technofunctional properties for the control of Staphylococcus aureus growth. In the analysed samples, strains of Escherichia coli (N=11), Salmonella spp. (N=18), Listeria spp. (N=6) and S. aureus (N=9) were classified as multidrug resistant (MDR). The most commonly isolated pathogen from the studied coalho goat cheese was S. aureus. Its isolates were positive for the genes encoding enterotoxins A (sea), B (seb), C (sec) and D (sed). The autochthonous LAB with the potential to inhibit S. aureus were identified as Enterococcus faecium. These strains were selected for in vitro tests of protective, safety, technological and functional properties. In the coalho goat cheese food matrix, these selected autochthonous LAB were able to reduce the enterotoxigenic MDR S. aureus load by approx. 3 log units. |
| Databáze: | OpenAIRE |
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