Gliotoxin contamination in and pre- and postfermented corn, sorghum and wet brewer’s grains silage in Sao Paulo and Rio de Janeiro State, Brazil

Autores
Keller, Luiz Antonio Moura; Keller, Kelly Moura; Monge, Maria del Pilar; Pereyra, Carina Maricel; Alonso, Veronica Andrea; Cavaglieri, Lilia Reneé; Chiacchiera, Stella Maris; R Rosa, C. A.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The aim of this study was to determine total fungal counts and the relative density of Aspergillus fumigatus and related species in silage samples intended for bovines before and after fermentation as well as to monitor the natural occurrence of gliotoxin in silage samples (pre- and postfermentation). Methods and methods: The survey was performed in farms located in São Paulo and Rio de Janeiro States in Brazil. In addition, the ability of A. fumigatus strains and related species strains to produce gliotoxin was also evaluated. A total of 300 samples were taken, immediately after opening of the silo (3-5 months) and during the ensiling period. Fungal counts were done by the surface-spread method. Gliotoxin production ability of isolates and natural contamination were determined by HPLC. Results: All postfermented samples had a total number of moulds exceeding 1 × 10 4 CFU g -1, with Aspergillus sp. as the most prevalent genus. Frequency of strains, among A. fumigatus and related species, was able to produce gliotoxin was similar in pre- and postfermented samples, except for sorghum, which showed differences between both kinds of samples. The highest toxin levels were produced by strains isolated from postfermented samples. More than 50% of the samples showed gliotoxin contamination levels that exceeded concentrations known to induce immunosuppressive and apoptotic effects in cells. Conclusions: The present data suggest that care should be taken because gliotoxin contamination in feedstuffs could affect productivity and also present a health risk for herds. Significance and Impact of the Study: Gliotoxin was found at quite important concentrations levels in pre- and postfermented substrates and its presence could therefore probably affect the productivity and health of herds. Current conservation and management practices do not avoid contamination with A. fumigatus on silage. Therefore, farm workers should be adequately protected during its handling.
Fil: Keller, Luiz Antonio Moura. Universidade Federal Rural do Rio de Janeiro; Brasil
Fil: Keller, Kelly Moura. Universidade Federal Rural do Rio de Janeiro; Brasil
Fil: Monge, Maria del Pilar. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
Fil: Pereyra, Carina Maricel. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Alonso, Veronica Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina
Fil: Cavaglieri, Lilia Reneé. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Chiacchiera, Stella Maris. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
Fil: R Rosa, C. A.. Universidade Federal Rural do Rio de Janeiro; Brasil
Materia
ASPERGILLUS FUMIGATUS AND RELATED SPECIES
FUNGI
MYCOTOXIN PRODUCTION
SILAGE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/189424
Acceder
id CONICETDig_00f606ed9ddf248819e0730a64cf8770
oai_identifier_str oai:ri.conicet.gov.ar:11336/189424
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Gliotoxin contamination in and pre- and postfermented corn, sorghum and wet brewer’s grains silage in Sao Paulo and Rio de Janeiro State, BrazilKeller, Luiz Antonio MouraKeller, Kelly MouraMonge, Maria del PilarPereyra, Carina MaricelAlonso, Veronica AndreaCavaglieri, Lilia ReneéChiacchiera, Stella MarisR Rosa, C. A.ASPERGILLUS FUMIGATUS AND RELATED SPECIESFUNGIMYCOTOXIN PRODUCTIONSILAGEhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The aim of this study was to determine total fungal counts and the relative density of Aspergillus fumigatus and related species in silage samples intended for bovines before and after fermentation as well as to monitor the natural occurrence of gliotoxin in silage samples (pre- and postfermentation). Methods and methods: The survey was performed in farms located in São Paulo and Rio de Janeiro States in Brazil. In addition, the ability of A. fumigatus strains and related species strains to produce gliotoxin was also evaluated. A total of 300 samples were taken, immediately after opening of the silo (3-5 months) and during the ensiling period. Fungal counts were done by the surface-spread method. Gliotoxin production ability of isolates and natural contamination were determined by HPLC. Results: All postfermented samples had a total number of moulds exceeding 1 × 10 4 CFU g -1, with Aspergillus sp. as the most prevalent genus. Frequency of strains, among A. fumigatus and related species, was able to produce gliotoxin was similar in pre- and postfermented samples, except for sorghum, which showed differences between both kinds of samples. The highest toxin levels were produced by strains isolated from postfermented samples. More than 50% of the samples showed gliotoxin contamination levels that exceeded concentrations known to induce immunosuppressive and apoptotic effects in cells. Conclusions: The present data suggest that care should be taken because gliotoxin contamination in feedstuffs could affect productivity and also present a health risk for herds. Significance and Impact of the Study: Gliotoxin was found at quite important concentrations levels in pre- and postfermented substrates and its presence could therefore probably affect the productivity and health of herds. Current conservation and management practices do not avoid contamination with A. fumigatus on silage. Therefore, farm workers should be adequately protected during its handling.Fil: Keller, Luiz Antonio Moura. Universidade Federal Rural do Rio de Janeiro; BrasilFil: Keller, Kelly Moura. Universidade Federal Rural do Rio de Janeiro; BrasilFil: Monge, Maria del Pilar. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; ArgentinaFil: Pereyra, Carina Maricel. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Alonso, Veronica Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; ArgentinaFil: Cavaglieri, Lilia Reneé. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Chiacchiera, Stella Maris. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; ArgentinaFil: R Rosa, C. A.. Universidade Federal Rural do Rio de Janeiro; BrasilWiley Blackwell Publishing, Inc2012-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/189424Keller, Luiz Antonio Moura; Keller, Kelly Moura; Monge, Maria del Pilar; Pereyra, Carina Maricel; Alonso, Veronica Andrea; et al.; Gliotoxin contamination in and pre- and postfermented corn, sorghum and wet brewer’s grains silage in Sao Paulo and Rio de Janeiro State, Brazil; Wiley Blackwell Publishing, Inc; Journal of Applied Microbiology; 112; 5; 5-2012; 865-8731364-50721365-2672CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2672.2012.05273.xinfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jambio/article/112/5/865/6716064info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:45:31Zoai:ri.conicet.gov.ar:11336/189424instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:45:31.548CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Gliotoxin contamination in and pre- and postfermented corn, sorghum and wet brewer’s grains silage in Sao Paulo and Rio de Janeiro State, Brazil
title Gliotoxin contamination in and pre- and postfermented corn, sorghum and wet brewer’s grains silage in Sao Paulo and Rio de Janeiro State, Brazil
spellingShingle Gliotoxin contamination in and pre- and postfermented corn, sorghum and wet brewer’s grains silage in Sao Paulo and Rio de Janeiro State, Brazil
Keller, Luiz Antonio Moura
ASPERGILLUS FUMIGATUS AND RELATED SPECIES
FUNGI
MYCOTOXIN PRODUCTION
SILAGE
title_short Gliotoxin contamination in and pre- and postfermented corn, sorghum and wet brewer’s grains silage in Sao Paulo and Rio de Janeiro State, Brazil
title_full Gliotoxin contamination in and pre- and postfermented corn, sorghum and wet brewer’s grains silage in Sao Paulo and Rio de Janeiro State, Brazil
title_fullStr Gliotoxin contamination in and pre- and postfermented corn, sorghum and wet brewer’s grains silage in Sao Paulo and Rio de Janeiro State, Brazil
title_full_unstemmed Gliotoxin contamination in and pre- and postfermented corn, sorghum and wet brewer’s grains silage in Sao Paulo and Rio de Janeiro State, Brazil
title_sort Gliotoxin contamination in and pre- and postfermented corn, sorghum and wet brewer’s grains silage in Sao Paulo and Rio de Janeiro State, Brazil
dc.creator.none.fl_str_mv Keller, Luiz Antonio Moura
Keller, Kelly Moura
Monge, Maria del Pilar
Pereyra, Carina Maricel
Alonso, Veronica Andrea
Cavaglieri, Lilia Reneé
Chiacchiera, Stella Maris
R Rosa, C. A.
author Keller, Luiz Antonio Moura
author_facet Keller, Luiz Antonio Moura
Keller, Kelly Moura
Monge, Maria del Pilar
Pereyra, Carina Maricel
Alonso, Veronica Andrea
Cavaglieri, Lilia Reneé
Chiacchiera, Stella Maris
R Rosa, C. A.
author_role author
author2 Keller, Kelly Moura
Monge, Maria del Pilar
Pereyra, Carina Maricel
Alonso, Veronica Andrea
Cavaglieri, Lilia Reneé
Chiacchiera, Stella Maris
R Rosa, C. A.
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv ASPERGILLUS FUMIGATUS AND RELATED SPECIES
FUNGI
MYCOTOXIN PRODUCTION
SILAGE
topic ASPERGILLUS FUMIGATUS AND RELATED SPECIES
FUNGI
MYCOTOXIN PRODUCTION
SILAGE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The aim of this study was to determine total fungal counts and the relative density of Aspergillus fumigatus and related species in silage samples intended for bovines before and after fermentation as well as to monitor the natural occurrence of gliotoxin in silage samples (pre- and postfermentation). Methods and methods: The survey was performed in farms located in São Paulo and Rio de Janeiro States in Brazil. In addition, the ability of A. fumigatus strains and related species strains to produce gliotoxin was also evaluated. A total of 300 samples were taken, immediately after opening of the silo (3-5 months) and during the ensiling period. Fungal counts were done by the surface-spread method. Gliotoxin production ability of isolates and natural contamination were determined by HPLC. Results: All postfermented samples had a total number of moulds exceeding 1 × 10 4 CFU g -1, with Aspergillus sp. as the most prevalent genus. Frequency of strains, among A. fumigatus and related species, was able to produce gliotoxin was similar in pre- and postfermented samples, except for sorghum, which showed differences between both kinds of samples. The highest toxin levels were produced by strains isolated from postfermented samples. More than 50% of the samples showed gliotoxin contamination levels that exceeded concentrations known to induce immunosuppressive and apoptotic effects in cells. Conclusions: The present data suggest that care should be taken because gliotoxin contamination in feedstuffs could affect productivity and also present a health risk for herds. Significance and Impact of the Study: Gliotoxin was found at quite important concentrations levels in pre- and postfermented substrates and its presence could therefore probably affect the productivity and health of herds. Current conservation and management practices do not avoid contamination with A. fumigatus on silage. Therefore, farm workers should be adequately protected during its handling.
Fil: Keller, Luiz Antonio Moura. Universidade Federal Rural do Rio de Janeiro; Brasil
Fil: Keller, Kelly Moura. Universidade Federal Rural do Rio de Janeiro; Brasil
Fil: Monge, Maria del Pilar. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
Fil: Pereyra, Carina Maricel. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Alonso, Veronica Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina
Fil: Cavaglieri, Lilia Reneé. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas, Fisicoquímicas y Naturales. Departamento de Microbiología e Inmunología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Chiacchiera, Stella Maris. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Instituto de Investigación en Micología y Micotoxicología. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigación en Micología y Micotoxicología; Argentina
Fil: R Rosa, C. A.. Universidade Federal Rural do Rio de Janeiro; Brasil
description The aim of this study was to determine total fungal counts and the relative density of Aspergillus fumigatus and related species in silage samples intended for bovines before and after fermentation as well as to monitor the natural occurrence of gliotoxin in silage samples (pre- and postfermentation). Methods and methods: The survey was performed in farms located in São Paulo and Rio de Janeiro States in Brazil. In addition, the ability of A. fumigatus strains and related species strains to produce gliotoxin was also evaluated. A total of 300 samples were taken, immediately after opening of the silo (3-5 months) and during the ensiling period. Fungal counts were done by the surface-spread method. Gliotoxin production ability of isolates and natural contamination were determined by HPLC. Results: All postfermented samples had a total number of moulds exceeding 1 × 10 4 CFU g -1, with Aspergillus sp. as the most prevalent genus. Frequency of strains, among A. fumigatus and related species, was able to produce gliotoxin was similar in pre- and postfermented samples, except for sorghum, which showed differences between both kinds of samples. The highest toxin levels were produced by strains isolated from postfermented samples. More than 50% of the samples showed gliotoxin contamination levels that exceeded concentrations known to induce immunosuppressive and apoptotic effects in cells. Conclusions: The present data suggest that care should be taken because gliotoxin contamination in feedstuffs could affect productivity and also present a health risk for herds. Significance and Impact of the Study: Gliotoxin was found at quite important concentrations levels in pre- and postfermented substrates and its presence could therefore probably affect the productivity and health of herds. Current conservation and management practices do not avoid contamination with A. fumigatus on silage. Therefore, farm workers should be adequately protected during its handling.
publishDate 2012
dc.date.none.fl_str_mv 2012-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/189424
Keller, Luiz Antonio Moura; Keller, Kelly Moura; Monge, Maria del Pilar; Pereyra, Carina Maricel; Alonso, Veronica Andrea; et al.; Gliotoxin contamination in and pre- and postfermented corn, sorghum and wet brewer’s grains silage in Sao Paulo and Rio de Janeiro State, Brazil; Wiley Blackwell Publishing, Inc; Journal of Applied Microbiology; 112; 5; 5-2012; 865-873
1364-5072
1365-2672
CONICET Digital
CONICET
url http://hdl.handle.net/11336/189424
identifier_str_mv Keller, Luiz Antonio Moura; Keller, Kelly Moura; Monge, Maria del Pilar; Pereyra, Carina Maricel; Alonso, Veronica Andrea; et al.; Gliotoxin contamination in and pre- and postfermented corn, sorghum and wet brewer’s grains silage in Sao Paulo and Rio de Janeiro State, Brazil; Wiley Blackwell Publishing, Inc; Journal of Applied Microbiology; 112; 5; 5-2012; 865-873
1364-5072
1365-2672
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2672.2012.05273.x
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jambio/article/112/5/865/6716064
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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