Chemical Detoxification of Aflatoxin-containing Copra |
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| Authors: | CJ MERCADO MPN REAL RR DEL ROSARIO |
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| Affiliation: | The authors are affiliated with the Institute of Food Science &Technology, Univ. of the Philippines at Los Banos, 4031 College, Laguna, Philippines. |
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| Abstract: | Aflatoxin-containing copra at moisture contents of 24% and 7% was effectively detoxified by ammonium hydroxide (> 97% and 89% reduction, respectively). Detoxification was accomplished in 5 days using 1.5% ammonium hydroxide (ammonia/copra); in 10 days using 1.0% and in 15 days using 0.5%. The initial aflatoxin B1 concentration of 500 ppb (9% moisture) was reduced to ≤ 20 ppb. Detoxification trials using a screw expeller showed 67% reduction in aflatoxin content of the oil with 1.0% ammonia. |
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