Maize grains treatments for total aflatoxin reduction for use as human food and livestock feed
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Abstract
Maize is prone to aflatoxin contamination prevailing in the high-risk regions in Kenya, where maize is rendered unfit for uses as food and feed. The objective of the study was to identify strategies that can be used to decontaminate aflatoxin in contaminated maize. Therefore, an experiment was conducted using maize from Kilifi contaminated with aflatoxin soaked in different solutions, done as single and combined treatments. Maize grains were used in portions of 250 g for the mitigation experiments and placed in conical flasks of 1 litre capacity and treatment application done. All the treatments were compared to the control with no treatment applied and set to 100%. The results revealed that, aflatoxin was reduced by 78.9% by soaking maize kernels in distilled water for 24 h under a single treatment. Soaking in aqueous ammonia for 24 h reduced aflatoxin by 68.1%. Soaking grains in sodium bisulphite for 24 h reduced by 59.3% and citric acid by 38.8%. The combination of sorting and aqueous ammonia was most effective with 90.8% aflatoxin reduction. The combination of sorting and sodium bisulphite lowered the levels to 72.9%, while citric acid and dehulling were 55.3% effective. Aflatoxin reduction methods to levels that are within the allowable limits of 10 μg/kg and 20 μg/kg will enable grains to be used as human food and livestock feed, respectively. Therefore, effective methods should be adopted by farmers to put maize to good use for human food and livestock feed instead of throwing away or using it with the high levels of aflatoxin.
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| All Time | Past 365 days | Past 30 Days | |
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Maize grains treatments for total aflatoxin reduction for use as human food and livestock feed
In: World Mycotoxin JournalSearch for other papers by B.N. Tenge in
Current site
Google Scholar
PubMed
Search for other papers by W.M. Muiru in
Current site
Google Scholar
PubMed
Search for other papers by W.J. Kimenju in
Current site
Google Scholar
PubMed
Search for other papers by L.S. Kimaru in
Current site
Google Scholar
PubMed
Search for other papers by C. Schwake-Anduschus in
Current site
Google Scholar
PubMed
Search for other papers by L.R. Amata in
Current site
Google Scholar
PubMed
Abstract
Maize is prone to aflatoxin contamination prevailing in the high-risk regions in Kenya, where maize is rendered unfit for uses as food and feed. The objective of the study was to identify strategies that can be used to decontaminate aflatoxin in contaminated maize. Therefore, an experiment was conducted using maize from Kilifi contaminated with aflatoxin soaked in different solutions, done as single and combined treatments. Maize grains were used in portions of 250 g for the mitigation experiments and placed in conical flasks of 1 litre capacity and treatment application done. All the treatments were compared to the control with no treatment applied and set to 100%. The results revealed that, aflatoxin was reduced by 78.9% by soaking maize kernels in distilled water for 24 h under a single treatment. Soaking in aqueous ammonia for 24 h reduced aflatoxin by 68.1%. Soaking grains in sodium bisulphite for 24 h reduced by 59.3% and citric acid by 38.8%. The combination of sorting and aqueous ammonia was most effective with 90.8% aflatoxin reduction. The combination of sorting and sodium bisulphite lowered the levels to 72.9%, while citric acid and dehulling were 55.3% effective. Aflatoxin reduction methods to levels that are within the allowable limits of 10 μg/kg and 20 μg/kg will enable grains to be used as human food and livestock feed, respectively. Therefore, effective methods should be adopted by farmers to put maize to good use for human food and livestock feed instead of throwing away or using it with the high levels of aflatoxin.
| All Time | Past 365 days | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 711 | 169 | 16 |
| Full Text Views | 31 | 3 | 0 |
| PDF Views & Downloads | 47 | 6 | 0 |
