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Efficacy and Safety Evaluation of Ozonation to Degrade Aflatoxin in Corn
Author(s) -
Jr. A.D. Prudente,
King J.M.
Publication year - 2002
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.2002.tb08830.x
Subject(s) - aflatoxin , chemistry , mutagen , hexane , reversion , ames test , ozone , food science , contamination , corn oil , chromatography , salmonella , carcinogen , biochemistry , organic chemistry , biology , bacteria , gene , ecology , genetics , phenotype
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.