Spores of Aspergillus parasiticus strain NRRL 2999 were inoculated into yeast extract sucrose broth containing different levels of iprodione (0, 1, 3, 5, 10, 15, and 20 (μg/ml) and incubated at 25°C for 4, 7, 10, 14, and 21 d. Iprodione inhibited mold growth and subsequent toxin production, beginning at the 5 μg/g level up to 7 d of incubation. Results showed that as the iprodione level increased, more time was required by the organism to initiate mycelial development. At any given time, the lower the iprodione level, the more dry mycelial weight and aflatoxin production (B1, B2, G1, and G2) were observed.

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Author notes

1Published as Paper No. 10360 Journal Series. Agricultural Research Division, Lincoln, Nebraska 68583. Research was conducted under Project 16-056.

2Present address: Dpto. Produccion Animal y Ciencia de los Alimentos. University of Zaragoza. Facultad de Veterinaria. Miguel Servet 177, Zaragoza-50013, Spain.