Acta Scientific Agriculture (ASAG)(ISSN: 2581-365X)

Research Article Volume 7 Issue 5

Prevalence of Aflatoxin Contamination across the Food Value Chain for Maize and Groundnuts in Uganda

Florence Tushabe1*, Samuel Mwesige2, Okoth Thomas3, Ivan Kasamba4 and Areu David5

1Department of Electronics and Computer Engineering, School of Engineering and Technology, Soroti University, Uganda
2Department of Biochemistry, School of Health Sciences, Soroti University, Uganda
3Uganda Industrial Research Institute, Uganda
4Medical Research Council/Uganda Virus Research Institute and London School of Hygiene and Tropical Medicine, Uganda
5Soroti University, Uganda

*Corresponding Author: Florence Tushabe, Department of Electronics and Computer Engineering, School of Engineering and Technology, Soroti University, Uganda

Received: March 22, 2023; Published: April 11, 2023


Background: Maize and groundnuts are some of the most highly contaminated foods on the Ugandan market. Since 2006 there have been some scattered studies on the prevalence of aflatoxin contamination among these grains. However, there were no recent studies of 2022 to highlight the status of aflatoxin contamination.

Methods: Grain samples were collected from two highest producing districts that is Masindi and Soroti districts; and across the value chain, from farmers to wholesalers, retailers, processors and restaurants/homes. The samples were tested using ELISA method and the prevalence calculated.

Results: Aflatoxins were detected in 45% and 30% of maize and groundnuts, respectively. Contamination increases over the value chain from 31% at farm level, to 42% at table level. In general, contamination was highest among processors at 43%, followed by restaurants (42%), wholesalers (40%), farmers (31%) and retailers at 29%.

Keywords: Aflatoxins; Prevalence; Maize; Corn; Groundnuts; Gnuts; Uganda; Value Chain


  1. The Food and Agriculture Organization (FAO) Report (2015).
  2. Sur E and Celik I. “Effects of aflatoxin B1 on the development of bursa of fabricius and blood lymphocyte acid phosphatase of the chicken”. British Poultry Science 44 (2003): 558-566.
  3. Wild C P and Montesano R. “A model of interaction: aflatoxins and hepatitis viruses in liver cancer etiology and prevention”. Cancer Letter 286 (2009): 22-28.
  4. N Benkerroum. “Aflatoxins: Producing-Molds, Structure, Health Issues and Incidence in Southeast Asian and Sub-Saharan African Countries”. International Journal of Environmental Research and Public Health 4 (2020): 1215.
  5. Bennett J W and Klich M. “Mycototoxins”. Clinical Microbiology Reviews3 (2003): 497-516.
  6. Chun HS., et al. “Determination of aflatoxin levels in nuts and their products conshumed in South Korea”. Food Chemistry1 (2007): 385-391.
  7. Wacoo AP., et al. “Methods for detection of aflatoxins in agricultural food crops”. Journal of Applied Chemistry (2014): 15.
  8. Okoth S. “Improving the evidence base on aflatoxin contamination and exposure”. Series: Agriculture and Nutrition, The Technical Center for Agricultural and Rural Cooperation, Wageningen, The Netherlands, 2016, CTA.
  9. Castelino JM., et al. “Seasonal and gestation stage associated differences in aflatoxin exposure in pregnant Gambian women”. Tropical Medicine and International Health 19 (2014): 348-354.
  10. Wild CP., et al. “Environmental and genetic determinants of aflatoxin-albumin adducts in the Gambia”. International Journal of Cancer1 (2000): 1-7.
  11. Kaaya NA and Warren HL. “A review of past and present research on aflatoxin in Uganda”. African Journal of Food, Agriculture and Nutritional Development 1 (2005): 1-18.
  12. Gong YY., et al. “Aflatoxin exposure and impaired child growth in West Africa: An unexplored international public health burden?” In: Mycotoxins Detection Methods, Management, Public Health and Agricultural Trade. Leslie, J.F. (2008): 53-56.
  13. Mugisha J., et al. “Value chain analysis and mapping for ground nuts in Uganda. Socio-economic Discussion Paper Series Number 14”. International Crops Research Institute for the Semi-Arid Tropics (2014).
  14. Baluka SA., et al. “Mycotoxin and Metallic Elements Concentrations in Peanut Products sold in Uganda Markets”. Cogent Food and Agriculture1 (2017): 1313925.
  15. Kaaya A N., et al. “Peanut aflatoxin levels on farms and in markets of Uganda”. Peanut Science1 (2006): 68-75.
  16. Omara T. “Aflatoxigenic contamination of freshly harvested white maize (Zea mays) from some selected Ugandan districts”. Peer Journal Preprints 7 (2019): e27888v1.
  17. Country-led Aflatoxin and Food Safety Situation Analysis and Action Planning for Uganda: Final Report, Partnership for Aflatoxin Control in Africa, African Union Commission (2017).
  18. Asiki G., et al. “A pilot study to evaluate aflatoxin exposure in a rural Ugandan population”. Tropical Medicine and International Health5 (2014): 592-599.
  19. “Total Aflatoxin ELISA assay kit”. ElabScience (2020).
  20. Falade TDO., et al. “Aflatoxin Contamination of Maize, Groundnut, and Sorghum Grown in Burkina Faso, Mali, and Niger and Aflatoxin Exposure Assessment”. Toxins 14 (2022): 700.
  21. S Muzoora., et al. “Status on aflatoxin levels in groundnuts in Uganda, Supplement article - Research”. Pan African medical Journal4 (2017): 11.


Citation: Florence Tushabe., et al. “Prevalence of Aflatoxin Contamination Across the Food Value Chain for Maize and Groundnuts in Uganda". Acta Scientific Agriculture 7.5 (2023): 22-27.


Copyright: © 2023 Florence Tushabe., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


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