Occurrence of Zearalenone and Ochratoxin A in Wheat and Barley in Some Regions in Bulgaria
Nadezhda Sertova
Feed grains are prone to fungal infections during growth, harvesting, and storage. Corns such as wheat and barley may be contaminated with mycotoxins leading to acute and chronic animal health exposure. The objective of this study was to obtain an information on the levels of ochratoxin A (OTA) and zearalenone (ZEA) in wheat (n=26) and barley (n=21) samples intended for feeding to farm animals. The samples were collected from different regions of Bulgaria in 2017 harvest and analyzed by using Enzyme-linked immunosorbent assay (ELISA). The results showed that 35% of wheat samples were contaminated with ZEA in the range of 51.65 μg kg-1–126.54 μg kg-1 and in 29% barley samples the contamination was between 48.67–79.64 µg kg-1. OTA pollution was registered in 19% of wheat samples in the range 4.86–7.32 µg kg-1 and in 29% barley samples it was between 4.46–11.70 µg kg-1 respectively. In all of the investigated samples the contamination with OTA and ZEA is bellow the limit set in the valid EC Recommendation 576/2006/EC.
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