Limited surveillance of fumonisins in brown rice and wheat harvested in Japan.

摘要: Fumonisins are mycotoxins mainly produced by Fusarium verticillioides, which is a major contaminant of corn. However, there sporadic reports fumonisin contamination in wheat worldwide. The rice adherent fungus Gibberella fujikuroi taxonomically closely related to F. verticillioides. Therefore, the potential risk and significant. Previously, sensitive detection method utilizing liquid chromatography with tandem electrospray mass spectrometry (LC-ESI-MS-MS) was developed for determination fumonisins brown rice. In present study, incidence harvested Japan investigated using LC-ESI-MS-MS. Forty-eight samples 47 were screened analyzed B-type fumonisins: B 1 (FB ) 2 ). About kg or seed divided into three subsamples, 10 g from each subsample used analysis. limits 0.012 0.011 mg/kg FB , respectively, 0.010 0.008 samples. mean (standard deviation) recoveries spiked at 0.50 toxin-free 77.6 (4.2)% 84.5 (3.1)%, respectively. One positive value greater than limit detection, but no found any This first report detected Japanese wheat.