Detection and isolation of Shiga toxin-producing Escherichia coli and microbial population counts on Argentinean Kosher beef for export to Israel

The aim of this study was to provide data on the frequency of Top 7 Shiga toxin-producing Escherichia coli (STEC) and microbial population counts on processed beef from Argentinean Kosher cattle abattoirs authorized to export to Israel. A total of 480 samples (forequarters, primal cuts, trimmings) w...

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Autores principales: Brusa, Victoria, Leotta, Gerardo Aníbal
Formato: Articulo
Lenguaje:Inglés
Publicado: 2023
Materias:
Ciencias Veterinarias
STEC
microbial counts
beef
Kosher
abattoir
conteo microbiano
carne bovina
frigorífico
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/168431
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-168431
record_format dspace
spelling I19-R120-10915-1684312024-08-09T20:02:47Z http://sedici.unlp.edu.ar/handle/10915/168431 Detection and isolation of Shiga toxin-producing Escherichia coli and microbial population counts on Argentinean Kosher beef for export to Israel Detección y aislamiento de Escherichia coli productora de toxina Shiga y conteo de poblaciones microbianas en carne bovina Kosher argentina para exportar a Israel Brusa, Victoria Leotta, Gerardo Aníbal 2023 2024-08-09T13:55:49Z en Ciencias Veterinarias STEC microbial counts beef Kosher abattoir conteo microbiano carne bovina Kosher frigorífico The aim of this study was to provide data on the frequency of Top 7 Shiga toxin-producing Escherichia coli (STEC) and microbial population counts on processed beef from Argentinean Kosher cattle abattoirs authorized to export to Israel. A total of 480 samples (forequarters, primal cuts, trimmings) were taken and analyzed for Top 7 STEC detection and isolation and for mesophilic aerobic organism, coliform and E. coli enumeration. Differences in stx detection and microbial population counts on forequarter samples before and after salting were not statistically significant (P >0.05). All samples were negative for Top 7 STEC. Differences were significant for all microbial counts in primal cuts (P <0.001). Neck samples showed a higher level of contamination with the three groups of microorganisms than fore shank and brisket samples. The prevalence of stx was lower than that reported worldwide and in Argentinean export abattoirs. Salting did not significantly reduce the microbial load on forequarters. El objetivo de este estudio fue determinar la frecuencia de Escherichia coli productora de toxina Shiga (STEC) Top 7 y realizar recuentos de poblaciones microbianas en carne Kosher de frigoríficos argentinos autorizados para exportar a Israel. Se tomaron 480 muestras (cuartos delanteros, cortes y recortes) y se realizó la detección y aislamiento de STEC Top 7 y el recuento de microorganismos aerobios mesófilos, coliformes y Escherichia coli. No se identificaron diferencias estadísticamente significativas (P >0,05) en la detección de stx y en los recuentos de poblaciones microbianas en las muestras de cuartos delanteros antes y después del salado. Todas las muestras fueron negativas para STEC Top 7. Se hallaron diferencias estadísticamente significativas (P <0,001) en todos los recuentos de poblaciones microbianas de los cortes. Las muestras de cogote tuvieron recuentos de poblaciones microbianas mayores a los de las muestras de brazuelo y pecho. La prevalencia de stx obtenida en el presente estudio fue menor a las reportadas en el resto del mundo y en frigoríficos exportadores de Argentina. El salado no redujo significativamente la carga microbiana de los cuartos delanteros bovinos. La lista completa de autores que integran el documento puede consultarse en el archivo. Facultad de Ciencias Veterinarias Articulo Articulo http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) application/pdf
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Veterinarias
STEC
microbial counts
beef
Kosher
abattoir
conteo microbiano
carne bovina
Kosher
frigorífico
spellingShingle Ciencias Veterinarias
STEC
microbial counts
beef
Kosher
abattoir
conteo microbiano
carne bovina
Kosher
frigorífico
Brusa, Victoria
Leotta, Gerardo Aníbal
Detection and isolation of Shiga toxin-producing Escherichia coli and microbial population counts on Argentinean Kosher beef for export to Israel
topic_facet Ciencias Veterinarias
STEC
microbial counts
beef
Kosher
abattoir
conteo microbiano
carne bovina
Kosher
frigorífico
description The aim of this study was to provide data on the frequency of Top 7 Shiga toxin-producing Escherichia coli (STEC) and microbial population counts on processed beef from Argentinean Kosher cattle abattoirs authorized to export to Israel. A total of 480 samples (forequarters, primal cuts, trimmings) were taken and analyzed for Top 7 STEC detection and isolation and for mesophilic aerobic organism, coliform and E. coli enumeration. Differences in stx detection and microbial population counts on forequarter samples before and after salting were not statistically significant (P >0.05). All samples were negative for Top 7 STEC. Differences were significant for all microbial counts in primal cuts (P <0.001). Neck samples showed a higher level of contamination with the three groups of microorganisms than fore shank and brisket samples. The prevalence of stx was lower than that reported worldwide and in Argentinean export abattoirs. Salting did not significantly reduce the microbial load on forequarters.
format Articulo
Articulo
author Brusa, Victoria
Leotta, Gerardo Aníbal
author_facet Brusa, Victoria
Leotta, Gerardo Aníbal
author_sort Brusa, Victoria
title Detection and isolation of Shiga toxin-producing Escherichia coli and microbial population counts on Argentinean Kosher beef for export to Israel
title_short Detection and isolation of Shiga toxin-producing Escherichia coli and microbial population counts on Argentinean Kosher beef for export to Israel
title_full Detection and isolation of Shiga toxin-producing Escherichia coli and microbial population counts on Argentinean Kosher beef for export to Israel
title_fullStr Detection and isolation of Shiga toxin-producing Escherichia coli and microbial population counts on Argentinean Kosher beef for export to Israel
title_full_unstemmed Detection and isolation of Shiga toxin-producing Escherichia coli and microbial population counts on Argentinean Kosher beef for export to Israel
title_sort detection and isolation of shiga toxin-producing escherichia coli and microbial population counts on argentinean kosher beef for export to israel
publishDate 2023
url http://sedici.unlp.edu.ar/handle/10915/168431
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AT brusavictoria deteccionyaislamientodeescherichiacoliproductoradetoxinashigayconteodepoblacionesmicrobianasencarnebovinakosherargentinaparaexportaraisrael
AT leottagerardoanibal deteccionyaislamientodeescherichiacoliproductoradetoxinashigayconteodepoblacionesmicrobianasencarnebovinakosherargentinaparaexportaraisrael
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