Abstract
Samples of freshly harvested corn and remoistened corn were inoculated with Aspergillus flavus and stored for 4 weeks at about 27 C in air and three modified atmospheres. Aflatoxins and fat acidity were determined weekly. Corn stored in the modified atmospheres did not accumulate over 15 μg of aflatoxin B1 per kg and 20 μg of total aflatoxins per kg. Corn from the high CO2 treatment (61.7% CO2, 8.7% O2, and 29.6% N2) was visibly molded at 4 weeks and had a higher fat acidity than the other treatments. In the N2 (99.7% N2 and 0.3% O2) and controlled atmosphere (13.5% CO2, 0.5% O2, 84.8% N2) treatments, a fermentation-like odor was detected. When the corn was removed from the modified atmospheres it deteriorated rapidly and was soon contaminated with aflatoxins.
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Selected References
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