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Collaborative study of a screening method for the detection of aflatoxins in mixed feeds, other agricultural products, and foods



Collaborative study of a screening method for the detection of aflatoxins in mixed feeds, other agricultural products, and foods



Journal - Association of Official Analytical Chemists 59(1): 110-117



A screening method for aflatoxins was collaboratively tested on 11 different agricultural and food products: white and yellow corn, peanuts, peanut butter, pistachio nuts, peanut meal, cottonseed meal, chicken, pig, and turkey starter rations, and dairy cattle feed. The method involves a rapid extraction and cleanup procedure followed by the detection of total aflatoxins (B1 + B2 + G1 + G2) as a fluorescent band on the Florisil layer of a Velasco-type minicolumn. The results of 32 collaborators from 10 different countries are presented. Samples containing 0, 5, 10, 15, 20, and 25 mug aflatoxins/kg were analyzed. Eighty-four per cent of the negative samples and 89% of the samples containing 10-25 mug total aflatoxins/kg were correctly identified. This method has been adopted as official first action for the detection of aflatoxins in corn, peanuts, peanut butter, peanut meal, cottonseed meal, mixed feeds, and pistachio nuts.

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Accession: 039599476

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PMID: 1249021



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