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Co-occurrence of fumonisins with aflatoxins in home-stored maize for human consumption in rural villages of Tanzania

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dc.contributor.author Kimanya, M. E.
dc.contributor.author De Meulenaer, B.
dc.contributor.author Tiisekwa, B.
dc.contributor.author Ndomondo-Sigonda, M.
dc.contributor.author Devlieghere, F.
dc.contributor.author Van Camp, J.
dc.contributor.author Kolsteren, P.
dc.date.accessioned 2009-01-09T09:43:17Z
dc.date.available 2009-01-09T09:43:17Z
dc.date.issued 2008
dc.identifier.issn 0265-203X
dc.identifier.doi http://dx.doi.org/10.1080/02652030802112601
dc.identifier.other ITG-HLA
dc.identifier.other HEALTH
dc.identifier.other U-VOED
dc.identifier.other JIF
dc.identifier.other DOI
dc.identifier.other UPD8
dc.identifier.other ABSTRACT
dc.identifier.uri http://hdl.handle.net/10390/2468
dc.description.abstract This study determined maize-user practices that influence the presence of fumonisin and aflatoxin contamination of maize in food consumed in the rural areas of Tanzania. Samples of the 2005 maize harvest in Tanzania were collected from 120 households and examined for fumonisins and aflatoxins. Information on whether the maize was sorted to remove defective (visibly damaged or mouldy) maize before storage and whether the damaged and mouldy maize or the non-dehulled maize was used as food was also collected. In addition, the percentage of defective kernels in the samples was determined. Ninety per cent of the households sorted out defective maize, 45% consumed the defective maize and 30% consumed non-dehulled maize. In 52% of the samples fumonisins were determined at levels up to 11,048 µg kg-1 (median = 363 µg kg-1) and in 15% exceeded 1000 µg kg-1; the maximum tolerable limit (MTL) for fumonisins in maize for human consumption in other countries. Aflatoxins were detected in 18% of the samples at levels up to 158 µg kg-1 (median = 24 µg kg-1). Twelve per cent of the samples exceeded the Tanzanian limit for total aflatoxins (10 µg kg-1). Aflatoxins co-occurred with fumonisins in 10% of the samples. The percentage defective kernels (mean = 22%) correlated positively (r = 0.39) with the fumonisin levels. Tanzanians are at a risk of exposure to fumonisins and aflatoxins in maize. There is a need for further research on fumonisin and aflatoxin exposure in Tanzania to develop appropriate control strategies. en
dc.language English en
dc.subject Food contamination en
dc.subject Fumonisins en
dc.subject Aflatoxins en
dc.subject Food preservation en
dc.subject Storage en
dc.subject Tanzania en
dc.subject Africa, East en
dc.title Co-occurrence of fumonisins with aflatoxins in home-stored maize for human consumption in rural villages of Tanzania en
dc.type Article en
dc.citation.issue 11 en
dc.citation.jtitle Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment en
dc.citation.volume 25 en
dc.citation.pages 1353-1364 en
dc.citation.jabbreviation Food Addit Contam Part A Chem Anal Control Expo Risk Assess en


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