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Článek

Characterization of the Fusarium sambucinum species complex and detection of multiple mycotoxins in Brazilian barley samples

Iwase, Caio H T
Autor Iwase, Caio H T Department of Food Science, Food Engineering Faculty, University of Campinas - UNICAMP, SP, Brazil
Piacentini, Karim C
Autor Piacentini, Karim C Department of Food Science, Food Engineering Faculty, University of Campinas - UNICAMP, SP, Brazil
Giomo, Patrícia P
Autor Giomo, Patrícia P Department of Food Science, Food Engineering Faculty, University of Campinas - UNICAMP, SP, Brazil
Čumová, Martina
Autor Čumová, Martina Central Institute for Supervising and Testing in Agriculture, National Reference Laboratory, Regional Department Brno, Czech Republic
Wawroszová, Simona
Autor Wawroszová, Simona Central Institute for Supervising and Testing in Agriculture, National Reference Laboratory, Regional Department Brno, Czech Republic
Běláková, Sylvie
Autor Běláková, Sylvie Research Institute of Brewing and Malting, Malting Institute Brno, Czech Republic
Minella, Euclydes
Autor Minella, Euclydes Embrapa Trigo, Passo Fundo, RS, Brazil
Rocha, Liliana O
Autor Rocha, Liliana O Department of Food Science, Food Engineering Faculty, University of Campinas - UNICAMP, SP, Brazil. Electronic address: lrocha@unicamp.br

Food research international (Ottawa, Ont.). 2020 Oct ; 136 () : 109336. [epub] 20200519

Food Res Int
ISSN 1873-7145 | 0963-9969
Zdroj

This study investigated the fungal diversity in Brazilian barley samples, focusing on the Fusarium sambucinum species complex and the presence of multiple mycotoxins: aflatoxins B1, B2, G1, G2 beauvericin (BEA), enniatins (ENNs) A, A1, B, and B1, deoxynivalenol (DON), fumonisins (FB) B1 and B2, HT-2 and T-2 toxins, nivalenol (NIV) and ochratoxin A (OTA) from two different regions, São Paulo (SP) and Rio Grande do Sul (RS). The majority of the isolates belonged to the Fusarium sambucinum species complex (FSAMSC), with F. graminearum s.s. characterized as the major contaminant. F. meridionale and F. poae were the second most frequent fungi isolated from SP and RS, respectively. All of the F. graminearum s.s. isolates demonstrated 15-ADON genotype, whereas F. poae and F. meridionale were all NIV. The majority of the F. cortaderiae isolates were NIV, with only one 3-ADON genotype. Mycotoxin analysis revealed that none of the samples were contaminated by aflatoxins, OTA, FB2 and type A trichothecenes, however, all of the samples were contaminated with at least one Fusarium toxin. Contamination by DON, ZEA, ENNB and ENNB1 levels were significantly higher in RS. Co-contamination of BEA, DON, ENNs, NIV and ZEA in 18.5% and 24.2% of the analyzed samples was observed, from SP and RS respectively. More than 20% of the samples from RS presented DON and ZEA levels above the regulations established by Europe and Brazil. The results provide further information on the FSAMSC from South America and detected multiple Fusarium toxins in barley samples. This highlights the importance for further studies on the possible interactions of these mycotoxins in order to determine potential risks to animal health.

Klíčová slova
Barley, Food safety, Fusarium sambucinum species complex, Mycotoxin analysis, Sequencing,
MeSH
Fusarium * genetika MeSH
ječmen (rod) * MeSH
mykotoxiny * MeSH
Publikační typ
časopisecké články MeSH
práce podpořená grantem MeSH
Geografické názvy
Brazílie MeSH
Evropa MeSH
Názvy látek
mykotoxiny * MeSH

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