Aflatoxins and ochratoxin A in Moroccan foods and health risk assessment
Nysrine Mannani1,2, El Hassane Abdennebi3, Abdellah Zinedine2
1Laboratory for Research in Science and Technology (LRST), Higher School of Education and Training, Science and Technology Team, Ibn Zohr University of Agadir, Agadir, Morocco.
Abstract:
Co-occurrence of aflatoxins (AFs) and Ochratoxin A (OTA) in staple foods in Morocco was investigated, and the associated dietary exposure was assessed. A total of 135 samples of biscuits, chips, rice, black olives, and maize were collected from various markets and analysed using immunoaffinity column clean-up followed by HPLC-FLD. AFs and OTA were detected in 8.2% of the samples, maize being the most contaminated. AFB1 in 1 rice sample reached 8.5 µg/kg, exceeding the national limit and the OTA level in 1 maize sample was 24 µg/kg, above the regulatory limit of Morocco. Exposure assessment estimated daily intakes of 1.55 and 0.039 ng/kg bw/day for OTA from maize and olives, respectively. Mycotoxin levels above regulatory limits in staple foods indicate a public health risk and underscore the need for strict monitoring and control in the Moroccan food supply chain.
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