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Analysis of deoxynivalenol from cultures of Fusarium species

Eight isolates of Fusarium roseum and three of Fusarium colmorum were found to produce deoxynivalenol in rice cultures. Deoxynivalenol was extracted with aqueous methanol (40%) and purified by partitioning with ethyl acetate and acetonitrile-petroleum ether (boiling point, 60--70 degrees C). The toxin was identified by gas chromatography/mass spectrometry and quantified by gas-liquid chromatography. High recoveries (80%) of deoxynivalenol were obtained from rice cultures, and as low as 0.250 microgram of the toxin per g was detected.