Document Detail


Co-occurrence of aflatoxins, ochratoxin A, fumonisins, and zearalenone in cereals and feed, determined by competitive direct enzyme-linked immunosorbent assay and thin-layer chromatography.
MedLine Citation:
PMID:  20061243     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Aspergillus, Penicillium, and Fusarium species frequently contaminate crops. For this reason mycotoxins such as aflatoxins (AFs), ochratoxin A (OTA), fumonisins (FBs), and zearalenone (ZEA) are found in food and feed in a wide range of concentrations, depending on environmental and storage conditions. Consumption of mycotoxin-contaminated food and feed has been associated with acute and chronic poisoning and carcinoma. The aim of this study was to determine the incidence and co-occurrence of AFs (B1+B2+G1+G2), OTA, FBs (B1+B2+B3), and ZEA in 37 samples of cereals and feed randomly collected in 2007 from households of an endemic nephropathy (EN) area in Croatia. The mycotoxins were determined using the competitive direct ELISA test (CD-ELISA) in combination with thin-layer chromatography (TLC). The most frequent mycotoxin was ZEA (92%, mean 318.3 microg kg-1), followed by FBs (27%, 3690 microg kg-1), AFs (24.3%, 4.6 microg kg-1), and OTA (16.2%, 9.8 microg kg-1). Levels of AFs, ZEA, and FBs detected by CD-ELISA significantly correlated with the TLC results. However, only one OTA-positive sample was confirmed by TLC due to its high limit of detection. The levels of these mycotoxins were below the permissible limit for animal feed. Twenty-nine percent of cereals were contaminated with FBs, OTA, or ZEA in mass fractions above the permissible limit for humans. Co-occurrence of two toxins varied between 4.2% and 54% and of three between 4.2% and 7.6%. Prolonged co-exposure to AFs, OTA, FBs, and ZEA might increase the risk of various chronic diseases.
Authors:
Maja Segvi? Klari?; Zdenka Cvetni?; Stjepan Pepeljnjak; Ivan Kosalec
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Arhiv za higijenu rada i toksikologiju     Volume:  60     ISSN:  0004-1254     ISO Abbreviation:  Arh Hig Rada Toksikol     Publication Date:  2009 Dec 
Date Detail:
Created Date:  2010-01-11     Completed Date:  2010-03-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0373100     Medline TA:  Arh Hig Rada Toksikol     Country:  Croatia    
Other Details:
Languages:  eng     Pagination:  427-34     Citation Subset:  IM    
Affiliation:
Department of Microbiology, Faculty of Pharmacy and Biochemistry, University of Zagreb, Zagreb, Croatia. msegvic@pharma.hr
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MeSH Terms
Descriptor/Qualifier:
Aflatoxins / analysis
Animal Feed / analysis*,  microbiology
Animals
Cereals / chemistry*,  microbiology
Chromatography, Thin Layer
Croatia
Enzyme-Linked Immunosorbent Assay
Food Contamination / analysis*
Food Microbiology
Fumonisins / analysis
Humans
Mycotoxins / analysis*
Ochratoxins / analysis
Zearalenone / analysis
Chemical
Reg. No./Substance:
0/Aflatoxins; 0/Fumonisins; 0/Mycotoxins; 0/Ochratoxins; 17924-92-4/Zearalenone; 303-47-9/ochratoxin A

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