Journal
TOXINS
Volume 12, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/toxins12060357
Keywords
aflatoxins; mycotoxins; liquid chromatography; mass spectrometry; ochratoxin A; solid-liquid extraction; zearalenone; dried beef
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Funding
- North-West University Graduate Research Bursary
- National Research Found
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Dried beef meat, a locally processed meat from the cow, is vulnerable to contamination by mycotoxins, due to its exposure to the environmental microbiota during processing, drying, and point of sale. In this study, 108 dried beef samples were examined for the occurrence of 17 mycotoxins. Samples were extracted for mycotoxins using solid-liquid phase extraction method, while liquid chromatography coupled with triple quadrupole mass spectrometry (LC-MS/MS) via the dilute and shoot method was used to analyze the mycotoxins. Aflatoxin was found in 66% of the samples (average value of 23.56 mu g/kg). AFB(1)had a mean value of 105.4 mu g/kg, AFB2 mean value of 6.92 mu g/kg, and AFG(1)and AFG(2)had an average mean value of 40.49 mu g/kg and 2.60 mu g/kg, respectively. The total aflatoxins exceed the EU (4 mu g/kg) permissible level in food. The alpha-Zea average mean value was 113.82 mu g/kg for the various selling locations. Also, cyclopiazonic acid had an average mean value of 51.99 mu g/kg, while some of the beef samples were contaminated with more than nine different mycotoxins. The occurrence of these mycotoxins in dried beef is an indication of possible exposure of its consumers to the dangers of mycotoxins that are usually associated with severe health problems. This result shows that there are mycotoxin residues in the beef sold in Ekiti State markets.
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