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Appl Environ Microbiol. 1975 October; 30(4): 592-595
Copyright © 1975 American Society for Microbiology. All Rights Reserved.

Survival of Aspergillus flavus and Fusarium moniliforme in High-Moisture Corn Stored Under Modified Atmospheres

^* Department of Plant Pathology, University of Georgia College of Agriculture, Coastal Plain Station, Tifton, Georgia 31794 Department of Plant Pathology, University of Georgia College of Agriculture, Athens, Georgia 30602; and Stored-Product Insects Research and Development Laboratory, Agricultural Research Service, Savannah, Georgia 31403

ABSTRACT

Freshly harvested high-moisture corn with 29.4% moisture and corn remoistened to 19.6% moisture were inoculated with Aspergillus flavus Link ex Fr. and stored for 4 weeks at about 27 C in air (0.03% CO₂, 21% O₂, and 78% N₂) and three modified atmospheres: (i) 99.7% N₂ and 0.3% O₂; (ii) 61.7% CO₂, 8.7% O₂, and 29.6% N₂; and (iii) 13.5% CO₂, 0.5% O₂, and 84.8% N₂. Kernel infections by A. flavus, Fusarium moniliforme (Sheld.) Snyd. et Hans., and other fungi were monitored weekly. The modified-atmosphere treatments delayed deterioration by A. flavus and F. moniliforme, but their growth was not completely stopped. A. flavus survived better in the remoistened than in the freshly harvested corn. F. moniliforme survived in both. A. flavus and F. moniliforme were the dominant fungi in corn removed from the modified atmospheres and exposed to normal air for 1 week.