Efficacy and Safety Evaluation of Ozonation to Degrade Aflatoxin in Corn |
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| Authors: | AD Prudente Jr JM King |
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| Affiliation: | Authors Prudente Jr. and King are with Dept. of Food Science, 111 Food Science Bldg., Louisiana State Univ., Agricultural Center, Baton Rouge, LA 70803. Direct inquiries to author King (E-mail: ). |
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| Abstract: | ABSTRACT: 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. |
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| Keywords: | aflatoxin ozonation mutagenicity Ames assay corn |
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