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  • Title: Incidence and abundance of mycotoxins in maize in Rio Grande do Sul, Brazil.
    Author: Hennigen MR, Dick T.
    Journal: Food Addit Contam; 1995; 12(5):677-81. PubMed ID: 8522032.
    Abstract:
    The levels of aflatoxins B1, B2, G1, and G2, ochratoxin A, zearalenone and sterigmatocystin were determined by thin-layer chromatography in 36 samples of stored maize in the state of Rio Grande do Sul; the samples were obtained from May to September 1988, 23 samples were from silos and 13 samples were collected directly from farms. In 34.8% of the samples from silos aflatoxin B1+G1 was detected in concentrations that varied from 12 to 906 micrograms/kg. In 13% of the samples from silos aflatoxin B2 was detected in concentrations that varied from 48 to 180 micrograms/kg. In 9% of the samples from silos aflatoxin G2 was detected in concentrations that varied from 6 to 11 micrograms/kg. In 23% of the samples collected directly from farms aflatoxin B1+G1 was detected in concentrations that varied from 10 to 14 micrograms/kg. Ochratoxin A, zearalenone and sterigmatocystin were not detected at any time.
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