Discussion
Which one of the following fungi produces aflatoxins?
Answer: C
Aflatoxins are produced by Aspergillus flavus.
Aflatoxins B1, B2, G1 and G2 are toxic, carcinogenic secondary metabolites of A. flavus and A. parasiticus, which grow on groundnuts, maize, cottonseed and tree nuts stored warm and damp. Aflatoxin B1 is among the most potent natural liver carcinogens known.
Aspergillus niger is the industrial mould used for citric acid production and is not an aflatoxin producer. Fusarium verticillioides produces fumonisins, and Rhizopus oligosporus is the mould used to ferment tempeh.
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