Aflatoxin, sterigmatocystin contamination in foodstuffs and the mycotoxin-producing fungi

DOI 1 Citations 95 References

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  • 食品などにおけるアフラトキシン，ステリグマトシスチン汚染とその産生菌

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Description

All the aflatoxigenic fungi belong to genus Aspergillus section Flavi, and they are very close each other morphologically and genetically. The fungi sometime should be identified in combination of the morphological and molecular techniques in addition of mycotoxin production. A new aflatoxigenic species, A. nomius, is supported by cytochrome b gene analysis and hetero duplex analysis. The fungus is often found in sugarcane fields, especially of the southernmost islands, Japan. A. flavus is more aggressive than A. parasiticus to corn, rice and other crops whereas A. parasiticus infects peanut fruits more often than other crops.<br>Aflatoxin contamination is influenced by a variety of environmental factors including climate conditions and biological factors such as susceptibility and occurrence of vector because the toxigenic fungi are weak “pathogen”. Drought stress prior to the harvest become the plant more susceptible to the fungi in corn and peanuts. So, preharvest control of the fungi is also important to reduce the contamination.<br>Sterigmatocystin contamination by Aspergillus versicolor may occur when foodstuffs are kept for long time.

Journal

  • JSM Mycotoxins

    JSM Mycotoxins 55 (2), 133-138, 2005

    Japanese Society of Mycotoxicology

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