Efficacy and Safety Evaluation of Ozonation to Degrade Aflatoxin in Corn

This study determined the efficacy and safety of ozonation in degrading aflatoxin in corn. Ozonation (10 to 12 wt%) reduced aflatoxin levels by 92% and no reversion to the parent compound was observed. Ozonation had minimal effect on fatty acids of uncontaminated corn, but had significant effect on...

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Bibliographic Details
Published in:Journal of food science 2002-10, Vol.67 (8), p.2866-2872
Main Authors: Prudente, A.D. Jr, King, J.M
Format: Article
Language:English
Subjects:
aflatoxin
aflatoxins
Ames assay
Biological and medical sciences
Cereal and baking product industries
Corn
fatty acids
Food industries
Food irradiation
Food microbiology
Food safety
Food science
Fundamental and applied biological sciences. Psychology
mutagenicity
ozonation
Ozone
Zea mays
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Summary:This study determined the efficacy and safety of ozonation in degrading aflatoxin in corn. Ozonation (10 to 12 wt%) reduced aflatoxin levels by 92% and no reversion to the parent compound was observed. Ozonation had minimal effect on fatty acids of uncontaminated corn, but had significant effect on fatty acids of contaminated corn. Crude extracts showed no mutagenic potential in the Ames assay using TA98 and TA100. Clean-up using hexane increased their mutagenic potentials. Clean-up using Mycosep columns increased the mutagenic potentials 18 to 617%. Hexane extracts from ozone-treated contaminated corn had lower inhibitory effect. This suggested that a fat-soluble mutagen is being formed or natural inhibitors of mutagenicity are being destroyed.
ISSN:0022-1147
1750-3841
DOI:10.1111/j.1365-2621.2002.tb08830.x