Mycotoxins are one of the most important contaminants in cereal grains. Besides parent forms, the presence and identification of structurally modified mycotoxins is nowadays recognized as a challenging food safety-related issue and contribute to increase the human and animal exposure to these compounds. The aim of this study was to follow the distribution of Fusarium toxins and their main modified forms in the pearled fractions of several grain species (i.e. tritordeum, durum and bread wheat, and barley), using high-resolution mass spectrometry technique (HR-MS). A significant decreasing trend in mycotoxins concentration was observed from the outer layer to the inner kernel, along the sequential pearling process. Among modified forms, deoxynivalenol (DON) -oligoglucosides were described for the first time in naturally infected grains, while zearalenone (ZEN) -sulfate was the only ZEN-related form detected in pearling fractions. HR-MS could be confirmed as useful technique to study and characterize modified forms of mycotoxins.

HR-MS profiling and distribution of native and modified Fusarium mycotoxins in tritordeum, wheat and barley whole grains and corresponding pearled fractions

Giordano D.;Scarpino V.;Blandino M.;
2019

Abstract

Mycotoxins are one of the most important contaminants in cereal grains. Besides parent forms, the presence and identification of structurally modified mycotoxins is nowadays recognized as a challenging food safety-related issue and contribute to increase the human and animal exposure to these compounds. The aim of this study was to follow the distribution of Fusarium toxins and their main modified forms in the pearled fractions of several grain species (i.e. tritordeum, durum and bread wheat, and barley), using high-resolution mass spectrometry technique (HR-MS). A significant decreasing trend in mycotoxins concentration was observed from the outer layer to the inner kernel, along the sequential pearling process. Among modified forms, deoxynivalenol (DON) -oligoglucosides were described for the first time in naturally infected grains, while zearalenone (ZEN) -sulfate was the only ZEN-related form detected in pearling fractions. HR-MS could be confirmed as useful technique to study and characterize modified forms of mycotoxins.
87
178
184
http://www.elsevier.com/inca/publications/store/6/2/2/8/5/9/index.htt
Barley; High resolution mass spectrometry; Modified mycotoxins; Pearled fractions; Tritordeum; Wheat
Spaggiari M.; Righetti L.; Galaverna G.; Giordano D.; Scarpino V.; Blandino M.; Dall'Asta C.
File in questo prodotto:
File Dimensione Formato  
Spaggiari et al., 2019.pdf

Accesso riservato

Descrizione: pdf editoriale
Tipo di file: PDF EDITORIALE
Dimensione 2.56 MB
Formato Adobe PDF
2.56 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Spaggiari et al., 2019.pdf

Accesso aperto con embargo fino al 31/01/2021

Descrizione: post print
Tipo di file: POSTPRINT (VERSIONE FINALE DELL’AUTORE)
Dimensione 1.84 MB
Formato Adobe PDF
1.84 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/1704846
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 7
  • ???jsp.display-item.citation.isi??? 6
social impact