Alternaria toxins in wheat during the 2004 to 2005 Argentinean harvest

The natural occurrence of Alternaria mycotoxins in Argentinean wheat from the zone 5 South during the 2004 to 2005 harvest was investigated in 64 wheat samples. All samples were highly contaminated with a wide range of fungal species. Alternaria was found as the main component of the mycota, with an...

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Guardado en:
Detalles Bibliográficos
Autor principal: Patriarca, Andrea Rosana
Publicado: 2008
Materias:
Alternaria
Mycota
Triticum aestivum
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0362028X_v71_n6_p1262_Azcarate
http://hdl.handle.net/20.500.12110/paper_0362028X_v71_n6_p1262_Azcarate
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_0362028X_v71_n6_p1262_Azcarate
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spelling paper:paper_0362028X_v71_n6_p1262_Azcarate2023-06-08T15:35:00Z Alternaria toxins in wheat during the 2004 to 2005 Argentinean harvest Patriarca, Andrea Rosana Alternaria Mycota Triticum aestivum The natural occurrence of Alternaria mycotoxins in Argentinean wheat from the zone 5 South during the 2004 to 2005 harvest was investigated in 64 wheat samples. All samples were highly contaminated with a wide range of fungal species. Alternaria was found as the main component of the mycota, with an infection percentage of 100%. Three mycotoxins produced by species of Alternaria were determined in wheat: alternariol, alternariol monomethyl ether, and tenuazonic acid. Alternariol was detected in 4 (6%) of 64 samples, with a range of 645 to 1,388 μg/kg (mean of 1,054 μg/kg); alternariol monomethyl ether, with a range of 566 to 7,451 μg/kg (mean of 2,118 μg/kg) in 15 (23%) of 64 samples; and tenuazonic acid in 12 (19%) of 64 samples, with a range of 1,001 to 8,814 μg/kg (mean, 2,313 μg/kg). Alternariol monomethyl ether was the predominant toxin, but tenuazonic acid was detected in higher concentrations. Alternariol was present in fewer samples and in lower levels than were the other toxins. Tenuazonic acid and alternariol monomethyl ether occurred together in four samples, while tenuazonic acid and alternariol co-occurred in one sample. This the first report of the natural occurrence of Alternaria mycotoxins in Argentinean wheat. Toxin levels were high, probably due to the heavy infection with Alternaria species found in the samples. Copyright ©, International Association for Food Protection. Fil:Patriarca, A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0362028X_v71_n6_p1262_Azcarate http://hdl.handle.net/20.500.12110/paper_0362028X_v71_n6_p1262_Azcarate
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Alternaria
Mycota
Triticum aestivum
spellingShingle Alternaria
Mycota
Triticum aestivum
Patriarca, Andrea Rosana
Alternaria toxins in wheat during the 2004 to 2005 Argentinean harvest
topic_facet Alternaria
Mycota
Triticum aestivum
description The natural occurrence of Alternaria mycotoxins in Argentinean wheat from the zone 5 South during the 2004 to 2005 harvest was investigated in 64 wheat samples. All samples were highly contaminated with a wide range of fungal species. Alternaria was found as the main component of the mycota, with an infection percentage of 100%. Three mycotoxins produced by species of Alternaria were determined in wheat: alternariol, alternariol monomethyl ether, and tenuazonic acid. Alternariol was detected in 4 (6%) of 64 samples, with a range of 645 to 1,388 μg/kg (mean of 1,054 μg/kg); alternariol monomethyl ether, with a range of 566 to 7,451 μg/kg (mean of 2,118 μg/kg) in 15 (23%) of 64 samples; and tenuazonic acid in 12 (19%) of 64 samples, with a range of 1,001 to 8,814 μg/kg (mean, 2,313 μg/kg). Alternariol monomethyl ether was the predominant toxin, but tenuazonic acid was detected in higher concentrations. Alternariol was present in fewer samples and in lower levels than were the other toxins. Tenuazonic acid and alternariol monomethyl ether occurred together in four samples, while tenuazonic acid and alternariol co-occurred in one sample. This the first report of the natural occurrence of Alternaria mycotoxins in Argentinean wheat. Toxin levels were high, probably due to the heavy infection with Alternaria species found in the samples. Copyright ©, International Association for Food Protection.
author Patriarca, Andrea Rosana
author_facet Patriarca, Andrea Rosana
author_sort Patriarca, Andrea Rosana
title Alternaria toxins in wheat during the 2004 to 2005 Argentinean harvest
title_short Alternaria toxins in wheat during the 2004 to 2005 Argentinean harvest
title_full Alternaria toxins in wheat during the 2004 to 2005 Argentinean harvest
title_fullStr Alternaria toxins in wheat during the 2004 to 2005 Argentinean harvest
title_full_unstemmed Alternaria toxins in wheat during the 2004 to 2005 Argentinean harvest
title_sort alternaria toxins in wheat during the 2004 to 2005 argentinean harvest
publishDate 2008
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0362028X_v71_n6_p1262_Azcarate
http://hdl.handle.net/20.500.12110/paper_0362028X_v71_n6_p1262_Azcarate
work_keys_str_mv AT patriarcaandrearosana alternariatoxinsinwheatduringthe2004to2005argentineanharvest
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