The natural occurrence of fumonisin B1 (FB1) and B2 (FB2), a promoter for hepatocarcinogenesis, was investigated in Korean corn kernels for feed by HPLC with fluorescence detection. From the 12 corn kernel samples, FB1 was detected in 5 samples at levels ranging from 53 to 1327ng/g, while FB2 was found in 4 samples from 69 to 680ng/g. In the positive samples, the average concentrations of FB1 and FB2 were 506 and 288ng/g, respectively. One sample (No. K3) showed the highest FB1 and FB2 contents as 1327 and 680ng/g, respectively.
In the micrological survey on 5 positive samples for FB1 and FB2, 6 strains ofFusarium monlliforme were isolated, and all these isolates had a producibility of FB1 and FB1, with maximum levels of 80.7 to 180.9 g/g.Thisis the first report on the natural co-contamination of FB1 and FB2 in Korean corn kernels for feed, and on the ability ofF. moniliforme isolated from corn kernels for feed in Korea to produce FB1 and FB2.
Trichothecene Fusarium Species Mycotoxin Research Fusarium Moniliforme Corn Kernel
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