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Lactic Acid Bacteria as Biological Control of Staphylococcus aureus in Coalho Goat Cheese
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 additio...
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Published in: | Food technology and biotechnology 2018-09, Vol.56 (3), p.431-440 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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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
growth. In the analysed samples, strains of
(
=11),
spp. (
=18),
spp. (
=6) and
(
=9) were classified as multidrug resistant (MDR). The most commonly isolated pathogen from the studied coalho goat cheese was
. Its isolates were positive for the genes encoding enterotoxins A (
), B (
), C (
) and D (
). The autochthonous LAB with the potential to inhibit
were identified as
These strains were selected for
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
load by approx. 3 log units. |
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ISSN: | 1330-9862 1334-2606 |
DOI: | 10.17113/ftb.56.03.18.5736 |