Experimental short time production of aflatoxins by Aspergillus parasiticus in mixed feeds as related to various moisture contents.

Experimental short time production of aflatoxins in mixed feeds at 22, 28 and 37 degrees C as related to various moisture contents was studied. Growth of Aspergillus parasiticus was not observed in the meals with a moisture content ranging around 15% (22, 28 and 37 degrees C); the lowest quantifiable total aflatoxins at the fourth day was detected at 22 degrees C with 19.4% of moisture content; the higher total quantity of aflatoxins (113 mg/kg) was produced at 28 degrees C with 29.3% of moisture content. The ratio aflatoxin B1/aflatoxin G1 increased as the temperature raised.