Cleaning trials for corn containing aflatoxin
1975
Brekke, O.L. | Peplinski, A.J. | Griffin, E.L. Jr
Physical separation methods were generally ineffective for lowering the aflatoxin content of naturally contaminated corn used in the experimental work. The corn lots tested differed in aflatoxin content (10-450 parts/billion B1), geographic source, content of broken corn-foreign material, and represented both white and yellow corn. Dry cleaning, wet cleaning, density separation, and preferential fragmentation of the grain were used in the laboratory tests. Aflatoxin was concentrated in broken corn-foreign material in only 1 of the 10 lots tested. Hand-selected kernels that outwardly appeared sound and free of the bright greenish-yellow fluorescence associated with presence of aflatoxin had the toxin in excess of current guidelines (20 parts/billion) in 6 out of 7 lots of corn. The hand-selected kernels contained about one-half to as little as one-tenth the level of aflatoxin in the unfractionated lot.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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