Aflatoxins were widespread contaminants of foods, feeds and soil ,which could result in a variable toxicosis from death to adverse effects on productivity and health of host consuming contaminated diets ,depending on their concentration . They were among the most potent hepatocarcinogens and their high toxicity to both animals and humans made them the most dangerous known mycotoxins. The most toxic aflatoxin has been designated aflatoxin B_1(AFB_1) and its toxic metabolite could residue in animal products. ...