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Mycotoxins contamination of market maize and the potential of density sorting in reducing exposure in unregulated food systems in Kenya

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Title Mycotoxins contamination of market maize and the potential of density sorting in reducing exposure in unregulated food systems in Kenya
 
Creator Ngure, Raphael M.
Ngure, C.
Achieng, G.
Munga, F.
Moran, Z.
Stafstrom, W.
Nelson, R.J.
 
Subject maize
food systems
contamination
systems
mycotoxins
kenya
density
food
 
Description Aflatoxins and fumonisins commonly contaminate key food staples in tropical countries, causing recurring acute and chronic public health problems. The present study was conducted to assess the potential of a simple device designed for density-based sorting of maize for its potential to reduce aflatoxins and fumonisins in diverse samples of naturally contaminated maize. A cross sectional survey was conducted, analysing market maize samples (n=204) from eight counties in Western Kenya. A quarter (25%) of the maize samples were contaminated with aflatoxin B1 above the legal limit of 5 μg/kg and nearly half (48%) were contaminated with fumonisins at levels above the legal limit of 2 μg/g. Analysis of additional samples (n=24) from Meru County showed that contamination of maize with the two toxins was also common in Eastern Kenya. A simple density sorter was used to separate grain samples into heavy and light fractions. With an out-sort rate of 31%, density sorting was effective in separating maize by bulk density and 100-kernel weight (P
 
Date 2021-04-12
2023-03-10T14:33:56Z
2023-03-10T14:33:56Z
 
Type Journal Article
 
Identifier Ngure, Raphael M.; Ngure, C.; Achieng, G.; Munga, F.; Moran, Z.; Stafstrom, W.; Nelson, R.J. 2021. Mycotoxins contamination of market maize and the potential of density sorting in reducing exposure in unregulated food systems in Kenya. World Mycotoxin Journal 14: 165-178
1875-0710
1875-0796
https://hdl.handle.net/10568/129373
https://doi.org/10.3920/wmj2020.2631
 
Rights CC-BY-4.0
Open Access
 
Format p. 165-178
 
Publisher Wageningen Academic Publishers
 
Source World Mycotoxin Journal