Abstract
The natural co-occurrence of 42 mycotoxins was investigated in unprocessed oat grains grown in Ireland. The sample set included a total of 208 oat crops harvested during 2015-2016 and produced using conventional, organic, or gluten free farming systems. A range of different toxins was identified, including the major type A (neosolaniol, HT-2 and T-2 toxins, T-2 triol, and T-2-glucoside, co-occurring in 21 samples) and B trichothecenes (deoxynivalenol, nivalenol, and deoxynivalenol-3-glucoside), enniatins (B1, B, and A1, co-occurring in 12 samples), as well as beauvericin, alternariol, mycophenolic acid, and sterigmatocystin. The influences of sowing season, year, and production system were investigated, eventually indicating that the latter factor may have a higher impact than others on the production of certain mycotoxins in oats. The most frequently quantified compounds were HT-2 (51%) and T-2 (41%) toxins, with gluten free oats containing significantly lower concentrations of HT-2 compared to conventionally produced oats. Although the prevalence and concentrations of mycotoxin found in oat samples in this study should be substantially reduced by processing. However, as mycotoxin occurrence is clearly influenced by multiple factors, controlled field trials should be carried out to define optimal agronomic practices and mitigate mycotoxin production. Furthermore, this work highlights the need for regularly testing cereal-based foods with multi-residue analytical methods with wider specificities than the traditionally screened and regulated toxins, to generate knowledge on the occurrence of several mycotoxins that are, to date, rarely investigated.
Original language | English |
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Article number | 188 |
Number of pages | 16 |
Journal | Toxins |
Volume | 13 |
Issue number | 3 |
DOIs | |
Publication status | Published - 04 Mar 2021 |
Bibliographical note
Copyright:This record is sourced from MEDLINE/PubMed, a database of the U.S. National Library of Medicine
Keywords
- emerging
- food safety
- Ireland
- LC-MS/MS
- masked
- mycotoxins
- oats
ASJC Scopus subject areas
- Toxicology
- Health, Toxicology and Mutagenesis
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Dive into the research topics of 'Natural Co-Occurrence of Multiple Mycotoxins in Unprocessed Oats Grown in Ireland with Various Production Systems'. Together they form a unique fingerprint.Student theses
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Development of multi-mycotoxin UHPLC-MS/MS methods and application to oat and beer samples
De Colli, L. (Author), Elliott, C. (Supervisor) & Danaher, M. (Supervisor), Jul 2021Student thesis: Doctoral Thesis › Doctor of Philosophy
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