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    Question

    Aflatoxins are produced by:

    A.

    Alternaria burnsii

    B.

    Fusarium graminearum

    C.

    Cladosporium spp.

    D.

    Aspergillus flavus

    Correct option is D

    The correct answer is: (D) Aspergillus flavus
    Explanation:
    Aflatoxins are toxic secondary metabolites primarily produced by the fungus Aspergillus flavus and also by Aspergillus parasiticus.
    These toxins contaminate a wide range of agricultural commodities, especially cereals (like maize), nuts (like groundnut), and oilseeds, particularly when stored under warm and humid conditions.
    • Aflatoxins are highly carcinogenic and can cause acute poisoning, liver damage, and even death in humans and animals.
    • They are one of the most serious mycotoxins of concern in food safety.

    Information Booster:
    • Aflatoxins are classified into several types: B1, B2, G1, and G2. Among these, Aflatoxin B1 is the most toxic and carcinogenic.

    • Regulatory bodies like FSSAI (India) and FDA (USA) set strict limits for aflatoxin content in food products.

    Knowledge Booster :
    • Alternaria burnsii: Causes diseases in plants like leaf spot in cumin.

    • Fusarium graminearum: Produces trichothecenes and zearalenone, It causes head blight in wheat.

    • Cladosporium spp.: Commonly found as saprophytes on plant material.

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