Agronomy and Crop Sciences Commons^™

Production Of Aflatoxin On Damaged Corn Under Controlled Environmental Conditions, D. M. Wieman, G. M. White, Joseph L. Taraba, I. J. Ross, Clair L. Hicks, Bruce E. Langlois

Biosystems and Agricultural Engineering Faculty Publications

Aflatoxin B₁ production by Aspergillus flavus (NRRL 6432) was determined on physically damaged corn stored at 35,25 and 20°C and at relative humidities of 97 and 92%. Production at lower relative humidities of 80 and 85% were also tested at 25°C. Production lag times were significantly different for all test conditions. Lag times ranged from 46 h at 97% relative humidity and 35°C to 173. 8 h at 20°C and 92% relative humidity. Aflatoxin B, concentration doubled every 6 to 10 hours after a level of 10 ppb had been reached. Production rate constants were not significantly different between …