First evidence on the occurrence of multi‑mycotoxins and dietary risk exposure to AFB1 along the cassava value chain in Uganda
This study investigated the occurrence and distribution of multiple mycotoxins (aflatoxin B1, B2, G1, G2, feminizing B1, B2, ochratoxin A (OTA), deoxynivalenol (DON), zearalenone (ZEN), and citrinin (CIT)) in cassava products and as assessed the potential risk of aflatoxin B1 (AFB1) exposure among c...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2024
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/152427 |
| _version_ | 1855538542540750848 |
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| author | Oyesigye, E. Cervini, C. Oluwakayode, A. Mahuku, G. Medina, A. |
| author_browse | Cervini, C. Mahuku, G. Medina, A. Oluwakayode, A. Oyesigye, E. |
| author_facet | Oyesigye, E. Cervini, C. Oluwakayode, A. Mahuku, G. Medina, A. |
| author_sort | Oyesigye, E. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | This study investigated the occurrence and distribution of multiple mycotoxins (aflatoxin B1, B2, G1, G2, feminizing B1, B2, ochratoxin A (OTA), deoxynivalenol (DON), zearalenone (ZEN), and citrinin (CIT)) in cassava products and as assessed the potential risk of aflatoxin B1 (AFB1) exposure among cassava consumers. A total of 192 samples of Cassava products (96 four and 96 chips, each with 48 samples from farmer and 48 from wholesaler) were analyzed using LC/MS–MS. All positive samples irrespective of their origin (four or chips) exhibited AFB1 levels exceeding the EU regulatory threshold of 5 µg/kg. The sum of feminizing (FB1+ FB2), ZEN, and DON were significantly (P<0.05) higher in cassava flour (14.3 µg/kg; 3.71 µg/kg; 25.1 µg/kg) compared to chips (6.54 µg/kg; 1.25 µg/kg; 0.25 µg/kg), respectively. Aflatoxins G2 was not detected in any of 192 samples. Cassava four samples from farmers exhibited significantly (P<0.05) higher mean concentrations of AFB1 (27.1 µg/kg), total aflatoxins (78.2 µg/kg), and ochratoxin A (79.6 µg/kg) in contrast to wholesalers, whose mean levels were notably lower at 8.91, 5.79 µg/kg, and 2.44 µg/kg, respectively, pointing the likely critical source of mycotoxin contamination. Cassava consumers in Northern Uganda are at a higher risk, with an estimated 2.06 cancer cases per 100,000 individuals per year compared to those in Eastern Uganda at 0.25. This study underscores the urgent need for interventions to manage aflatoxins in cassava four, particularly at farm level in Northern Uganda. It accentuates a shift market to household level sampling and the need for analytical methods targeting multiple mycotoxins. |
| format | Journal Article |
| id | CGSpace152427 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1524272025-11-11T10:45:37Z First evidence on the occurrence of multi‑mycotoxins and dietary risk exposure to AFB1 along the cassava value chain in Uganda Oyesigye, E. Cervini, C. Oluwakayode, A. Mahuku, G. Medina, A. mycotoxins cassava risk assessment analysis aflatoxins uganda This study investigated the occurrence and distribution of multiple mycotoxins (aflatoxin B1, B2, G1, G2, feminizing B1, B2, ochratoxin A (OTA), deoxynivalenol (DON), zearalenone (ZEN), and citrinin (CIT)) in cassava products and as assessed the potential risk of aflatoxin B1 (AFB1) exposure among cassava consumers. A total of 192 samples of Cassava products (96 four and 96 chips, each with 48 samples from farmer and 48 from wholesaler) were analyzed using LC/MS–MS. All positive samples irrespective of their origin (four or chips) exhibited AFB1 levels exceeding the EU regulatory threshold of 5 µg/kg. The sum of feminizing (FB1+ FB2), ZEN, and DON were significantly (P<0.05) higher in cassava flour (14.3 µg/kg; 3.71 µg/kg; 25.1 µg/kg) compared to chips (6.54 µg/kg; 1.25 µg/kg; 0.25 µg/kg), respectively. Aflatoxins G2 was not detected in any of 192 samples. Cassava four samples from farmers exhibited significantly (P<0.05) higher mean concentrations of AFB1 (27.1 µg/kg), total aflatoxins (78.2 µg/kg), and ochratoxin A (79.6 µg/kg) in contrast to wholesalers, whose mean levels were notably lower at 8.91, 5.79 µg/kg, and 2.44 µg/kg, respectively, pointing the likely critical source of mycotoxin contamination. Cassava consumers in Northern Uganda are at a higher risk, with an estimated 2.06 cancer cases per 100,000 individuals per year compared to those in Eastern Uganda at 0.25. This study underscores the urgent need for interventions to manage aflatoxins in cassava four, particularly at farm level in Northern Uganda. It accentuates a shift market to household level sampling and the need for analytical methods targeting multiple mycotoxins. 2024-11 2024-09-27T13:43:28Z 2024-09-27T13:43:28Z Journal Article https://hdl.handle.net/10568/152427 en Open Access application/pdf Springer Oyesigye, E., Cervini, C., Oluwakayode, A., Mahuku, G. & Medina, A. (2024). First evidence on the occurrence of multi-mycotoxins and dietary risk exposure to AFB1 along the cassava value chain in Uganda. Mycotoxin Research, 1-16. |
| spellingShingle | mycotoxins cassava risk assessment analysis aflatoxins uganda Oyesigye, E. Cervini, C. Oluwakayode, A. Mahuku, G. Medina, A. First evidence on the occurrence of multi‑mycotoxins and dietary risk exposure to AFB1 along the cassava value chain in Uganda |
| title | First evidence on the occurrence of multi‑mycotoxins and dietary risk exposure to AFB1 along the cassava value chain in Uganda |
| title_full | First evidence on the occurrence of multi‑mycotoxins and dietary risk exposure to AFB1 along the cassava value chain in Uganda |
| title_fullStr | First evidence on the occurrence of multi‑mycotoxins and dietary risk exposure to AFB1 along the cassava value chain in Uganda |
| title_full_unstemmed | First evidence on the occurrence of multi‑mycotoxins and dietary risk exposure to AFB1 along the cassava value chain in Uganda |
| title_short | First evidence on the occurrence of multi‑mycotoxins and dietary risk exposure to AFB1 along the cassava value chain in Uganda |
| title_sort | first evidence on the occurrence of multi mycotoxins and dietary risk exposure to afb1 along the cassava value chain in uganda |
| topic | mycotoxins cassava risk assessment analysis aflatoxins uganda |
| url | https://hdl.handle.net/10568/152427 |
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