Detoxification of aflatoxin-contaminated corn
1983
Anderson, R.A.
Outbreaks of aflatoxin in corn occur sporadically in different sections of the United States. In recent years, the incidence has centered largely in the Southeastern States. When these outbreaks occur, some means of salvaging the contaminated corn must be considered. Numerous approaches have been suggested, largely falling in the broad categories of physical separation, chemical inactivation. and biological inactivation. Research conducted on peanut and cottonseed meals has provided a basis for the selection of methods to be applied to the detoxification of corn. From a review of past and recent literature, it appears that the most practical method for salvaging aflatoxin contaminated corn is by ammoniation. Extensive work at NRRC resulted in development of a procedure whereby introduction of ammonia reduced aflatoxin in corn from in excess of 1,000 ppb to less than 10 ppb. Although toxicological studies have not yet been completed to qualify the process for FDA approval, indications are that the method is a viable one and should offer promise to farmers and others who may face financial disaster as a result of aflatoxin.
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