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Occurrence of Aflatoxins, Ochratoxin A, and Fumonisins in Retail Foods in Japan

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We conducted a survey of aflatoxin B1, B2, G1, and G2, ochratoxin A, and fumonisin B1, B2, and B3 contamination in various foods on the retail market in Japan in 2004 and 2005. The mycotoxins were analyzed by high-performance liquid chromatography, liquid chromatography–mass spectrometry, or high-performance thin-layer chromatography. Aflatoxins were detected in 10 of 21 peanut butter samples; the highest concentration of aflatoxin B1 was 2.59 μg/kg. Aflatoxin contamination was not found in corn products, corn, peanuts, buckwheat flour, dried buckwheat noodles, rice, or sesame oil. Ochratoxin A was detected in oatmeal, wheat flour, rye, buckwheat flour, green coffee beans, roasted coffee beans, raisins, beer, and wine but not in rice or corn products. Ochratoxin A concentrations in contaminated samples were below 0.8 μg/kg. Fumonisins were detected in popcorn, frozen corn, corn flakes, and corn grits. The highest concentrations of fumonisins B1, B2, and B3 in these samples were 354.0, 94.0, and 64.0 μg/kg, respectively.

Document Type: Research Article

Affiliations: 1: National Institute of Health Sciences, 1-18-1, Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan 2: Nagoya City Public Health Research Institute, 1-11, Hagiyama, Mizuho-ku, Nagoya 467-8615, Japan 3: Tokyo Metropolitan Institute of Public Health, 3-24-1, Hyakunincho, Shinjuku-ku, Tokyo 169-0073, Japan 4: Fertilizer and Feed Inspection Services, 1-2, Shintoshin, Chuo-ku, Saitama, 330-9733, Japan 5: Kobe Institute of Health, 4-6, Minatojimanakamachi, Chuo-ku, Kobe 650-0046, Japan 6: Japan Grain Inspection Association, 2-17-3, Arai, Ichikawa-shi, Chiba 272-0144, Japan 7: Japan Food Research Laboratories, Nagoya Branch, 4-5-13, Otu, Naka-ku, Nagoya 460-0011, Japan 8: Kanagawa Prefectural Institute of Public Health, 1-3-1, Shimomachiya, Chigasaki 253-0087, Japan 9: University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8581, Japan

Publication date: June 1, 2006

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