Prevalence and levels of deoxynivalenol and zearalenone in commercial barley and wheat grain produced in Southern Brazil: an eight-year (2008 to 2015) summary

Fusarium head blight (FHB), caused mainly by Fusarium graminearum , is one of the most important diseases of barley and wheat in Brazil. The disease causes yield losses and contaminates grain with mycotoxins produced by the fungus, mainly deoxynivalenol (DON) and zearalenone (ZEA). The objective of...

Full description

Saved in:

Bibliographic Details
Published in:	Tropical plant pathology Vol. 42; no. 3; pp. 146 - 152
Main Authors:	Mallmann, Carlos Augusto, Dilkin, Paulo, Mallmann, Adriano Olnei, Oliveira, Maurício Schneider, Adaniya, Zoila Naeko Coloma, Tonini, Camila
Format:	Journal Article
Language:	English
Published:	Cham Springer International Publishing 01-06-2017 Springer Nature B.V
Subjects:	Animal health Barley Biomedical and Life Sciences Blight Crops Deoxynivalenol Diseases Environmental monitoring Food contamination Food safety Fungi Fusarium Fusarium graminearum Fusarium head blight Grain Inspection Life Sciences Liquid chromatography Mass spectrometry Mass spectroscopy Mycotoxins Plant Pathology Short Communication Water analysis Wheat Zearalenone Brazil Trichothecene Mycotoxin Fusarium head blight
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Fusarium head blight (FHB), caused mainly by Fusarium graminearum , is one of the most important diseases of barley and wheat in Brazil. The disease causes yield losses and contaminates grain with mycotoxins produced by the fungus, mainly deoxynivalenol (DON) and zearalenone (ZEA). The objective of this study was to summarize the results of 16,487 analyses of DON and ZEA in barley and wheat commercial grain produced in Brazil from 2008 to 2015 using liquid chromatography tandem-mass spectrometry. For barley, DON and ZEA were detected in 67% and 41% of the samples, respectively, but 19% and 18% were above the maximum tolerated limits (MTL = 1250 μg/kg for DON and 100 μg/kg for ZEA). For wheat, DON and ZEA were detected in 73 and 38% with 30% and 9% of the samples above the MTL (1250 μg/kg for DON and 200 μg/kg for ZEA). The overall mean concentration of DON was 737 μg/kg in barley and 660 μg/kg in wheat. The mean yearly DON levels varied less in barley (446 μg/kg to 1114 μg/kg) compared to wheat (346 μg/kg to 1274 μg/kg). For the latter, a high peak of DON was found in 2014 when 58% of the samples were above the MTL and the toxin levels averaged 1274 μg/kg across all samples. The mean yearly concentration of ZEA was 138 and 111 μg/kg for barley and wheat, respectively, with the highest prevalence and concentration reported in 2008 and 2009, for both crops. To our knowledge, this is the most comprehensive summary of DON and ZEA contamination in barley and wheat in Brazil for almost a decade of monitoring. Continuous assessment and close inspection of highly contaminated batches are essential to ensure food safety and mitigate the risk that these mycotoxins can cause to human and animal health.
ISSN:	1983-2052 1982-5676 1983-2052
DOI:	10.1007/s40858-017-0152-6