Occurrence of Cyclopiazonic Acid in Peanuts

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Abstract
Samples of segregation 3 farmer stock peanuts from the 1980 southeastern USA growing season were analyzed for the presence of cyclopiazonic acid and aflatoxins. Cyclopiazonic acid appeared in 21 of 27 loose-shell kernel fractions at a range of 32-6525 .mu.g/kg and in 4 of 21 sound mature kernel fractions at a range of 32-130 .mu.g/kg. Aflatoxins were detected in 26 of 27 loose-shell kernel fractions and in 20 of 21 sound mature kernel fractions. Cyclopiazonic acid used at 105 and 210 .mu.g/kg to spike peanut samples was recovered at an average rate of 93.3%, with ranges of 89-119 and 166-221 .mu.g/kg, respectively. The minimum detection limit on oxalic acid-impregnated silica gel plates was 26 ng.