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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Autores principales:	Azcarate, M.P., Patriarca, A., Terminiello, L., Fernández Pinto, V.
Formato:	JOUR
Materias:	Alternaria Mycota Triticum aestivum
Acceso en línea:	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	todo:paper_0362028X_v71_n6_p1262_Azcarate
record_format	dspace
spelling	todo:paper_0362028X_v71_n6_p1262_Azcarate2023-10-03T15:26:50Z Alternaria toxins in wheat during the 2004 to 2005 Argentinean harvest Azcarate, M.P. Patriarca, A. Terminiello, L. Fernández Pinto, V. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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 Azcarate, M.P. Patriarca, A. Terminiello, L. Fernández Pinto, V. 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.
format	JOUR
author	Azcarate, M.P. Patriarca, A. Terminiello, L. Fernández Pinto, V.
author_facet	Azcarate, M.P. Patriarca, A. Terminiello, L. Fernández Pinto, V.
author_sort	Azcarate, M.P.
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
url	http://hdl.handle.net/20.500.12110/paper_0362028X_v71_n6_p1262_Azcarate
work_keys_str_mv	AT azcaratemp alternariatoxinsinwheatduringthe2004to2005argentineanharvest AT patriarcaa alternariatoxinsinwheatduringthe2004to2005argentineanharvest AT terminiellol alternariatoxinsinwheatduringthe2004to2005argentineanharvest AT fernandezpintov alternariatoxinsinwheatduringthe2004to2005argentineanharvest
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Alternaria toxins in wheat during the 2004 to 2005 Argentinean harvest

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