Occurrence of ochratoxin A in domestic beers and wines from Tunisia by immunoaffinity clean-up and liquid chromatography.
A survey on the occurrence of ochratoxin A (OTA) in wines and beers produced in Tunisia was carried out. Wines and beers were analysed using immunoaffinity column clean-up and high-performance liquid chromatography coupled to a fluorometric detector. OTA was detected in 29 wine samples, with an incidence of contamination of 85%. The OTA levels ranged between 0.09 and 1.5 µg/L. Neither of the studied samples showed levels above the European regulatory limit (2 µg/L). OTA was detected in 17 beer samples with an incidence of contamination of 45%. The OTA levels ranged between 0.04 and 0.35 µg/L. The OTA dietary intake by the consumption of wine and beer may be considered as negligible. The obtained results showed high incidence of OTA in Tunisian wines and beers; however, there are no toxicological risks for Tunisian consumers through their consumption of such processed products using cereals and grapes.
a Laboratory of Molecular Physiology of Plants , Center of Biotechnology of Borj-Cedria , Hammam-Lif , Tunisia.
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Lasram
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Oueslati
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Chebil
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Mliki
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Ghorbel
D001515:Beer / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D005504:Food Analysis / Q000379:methods; D005506:Food Contamination / Q000032:analysis*; D006801:Humans; D009793:Ochratoxins / Q000032:analysis*; D014416:Tunisia; D014920:Wine / Q000032:analysis*
D009793:Ochratoxins; C025589:ochratoxin A
beer; mycotoxins; ochratoxin A; wine