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Local post-harvest practices associated with aflatoxin and fumonisin contamination of maize in three agro ecological zones of Tanzania

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Abstract
A survey was undertaken of a total of 120 farmers, 40 from each of the three studied agro-ecological zones of Tanzania, to determine local post-harvest management practices associated with aflatoxin (AF) and fumonisin (FB) contamination of maize. Data on practices (collected using a structured questionnaire) and maize samples were obtained from each of the 120 farmers. FB and AF contamination in the samples were analysed by HPLC. A total of 45% and 85% of maize samples were positive for AF and FB respectively, with levels ranging from 0.1 to 269gkg(-1) for AF and from 49 to 18273gkg(-1) for FBs. Significant differences in contamination level were observed among the three agro-ecological zones. Farmers in the three agro-ecological zones practised similar practices in varying degrees. Drying, sorting and protecting maize against insect infestation are practices that showed significant association with AF or FB contamination of maize. Drying maize on mat/raised platform, sorting (damaged, discoloured and moulded grains) and application of synthetic insecticides during storage are practices that were associated with less contamination of maize with AF and FB. The results can be used to advise on effective post-harvest strategies for prevention of AF and FB contamination of maize in rural Tanzania.
Keywords
aflatoxin and fumonisin contamination, Local post-harvest practices, maize, STORED MAIZE, FUSARIUM-VERTICILLIOIDES, NORTHERN TANZANIA, WEST-AFRICA, BREAST-MILK, EXPOSURE, B-1, COOCCURRENCE, MYCOTOXINS, INFANTS

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Chicago
Kamala, Analice, Martin Kimanya, Geert Haesaert, Ben Tiisekwa, Richard Madege, Szanne Degraeve, Cypriana Cyprian, and Bruno De Meulenaer. 2016. “Local Post-harvest Practices Associated with Aflatoxin and Fumonisin Contamination of Maize in Three Agro Ecological Zones of Tanzania.” Food Additives and Contaminants Part A-chemistry Analysis Control Exposure & Risk Assessment 33 (3): 551–559.
APA
Kamala, A., Kimanya, M., Haesaert, G., Tiisekwa, B., Madege, R., Degraeve, S., Cyprian, C., et al. (2016). Local post-harvest practices associated with aflatoxin and fumonisin contamination of maize in three agro ecological zones of Tanzania. FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT, 33(3), 551–559.
Vancouver
1.
Kamala A, Kimanya M, Haesaert G, Tiisekwa B, Madege R, Degraeve S, et al. Local post-harvest practices associated with aflatoxin and fumonisin contamination of maize in three agro ecological zones of Tanzania. FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT. 2016;33(3):551–9.
MLA
Kamala, Analice, Martin Kimanya, Geert Haesaert, et al. “Local Post-harvest Practices Associated with Aflatoxin and Fumonisin Contamination of Maize in Three Agro Ecological Zones of Tanzania.” FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT 33.3 (2016): 551–559. Print.
@article{8026683,
  abstract     = {A survey was undertaken of a total of 120 farmers, 40 from each of the three studied agro-ecological zones of Tanzania, to determine local post-harvest management practices associated with aflatoxin (AF) and fumonisin (FB) contamination of maize. Data on practices (collected using a structured questionnaire) and maize samples were obtained from each of the 120 farmers. FB and AF contamination in the samples were analysed by HPLC. A total of 45\% and 85\% of maize samples were positive for AF and FB respectively, with levels ranging from 0.1 to 269gkg(-1) for AF and from 49 to 18273gkg(-1) for FBs. Significant differences in contamination level were observed among the three agro-ecological zones. Farmers in the three agro-ecological zones practised similar practices in varying degrees. Drying, sorting and protecting maize against insect infestation are practices that showed significant association with AF or FB contamination of maize. Drying maize on mat/raised platform, sorting (damaged, discoloured and moulded grains) and application of synthetic insecticides during storage are practices that were associated with less contamination of maize with AF and FB. The results can be used to advise on effective post-harvest strategies for prevention of AF and FB contamination of maize in rural Tanzania.},
  author       = {Kamala, Analice and Kimanya, Martin and Haesaert, Geert and Tiisekwa, Ben and Madege, Richard and Degraeve, Szanne and Cyprian, Cypriana and De Meulenaer, Bruno},
  issn         = {1944-0049},
  journal      = {FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE \& RISK ASSESSMENT},
  keyword      = {aflatoxin and fumonisin contamination,Local post-harvest practices,maize,STORED MAIZE,FUSARIUM-VERTICILLIOIDES,NORTHERN TANZANIA,WEST-AFRICA,BREAST-MILK,EXPOSURE,B-1,COOCCURRENCE,MYCOTOXINS,INFANTS},
  language     = {eng},
  number       = {3},
  pages        = {551--559},
  title        = {Local post-harvest practices associated with aflatoxin and fumonisin contamination of maize in three agro ecological zones of Tanzania},
  url          = {http://dx.doi.org/10.1080/19440049.2016.1138546},
  volume       = {33},
  year         = {2016},
}

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