Production of Fumonisin B-2 and B-4 by Aspergillus niger on Grapes and Raisins

Jesper Mølgaard Mogensen, Jens Christian Frisvad, Ulf Thrane, Kristian Fog Nielsen

    Research output: Contribution to journalJournal articleResearchpeer-review


    The recent discovery of fumonisin production in Aspergillus niger, raises concerns about the presence of these mycotoxins in grapes and raisins as well as other commodities where A. niger is a frequent contaminant. Here we investigate the potential production of fumonisins in A. niger cultured on grapes and raisins. Sixty-six A. niger, 4 A. tubingensis, and 16 A. acidus strains isolated from raisins were tested for fumonisin production on laboratory media. Neither A. tubingensis nor A. acidus strains produced fumonisins, but 77% of A. niger strains did. None of the strains produced ochratoxin A. Ten selected fumonisin producing A. niger strains were further able to produce fumonisin B2 and fumonisin B4 on grapes in the range 171−7841 μg fumonisin B2/kg and 14−1157 μg fumonisin B4/kg. Four selected strains were able to produce fumonisin B2 (5−6476 μg/kg) and fumonisin B4 (12−672 μg/kg) on raisins.
    Original languageEnglish
    JournalJournal of Agricultural and Food Chemistry
    Issue number2
    Pages (from-to)954-958
    Publication statusPublished - 2010


    • Fumonisins
    • grapes
    • raisins
    • Aspergillus niger
    • mycotoxins

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