Hlashwayo, D.F.
(2018)
Aflatoxin B1 contamination in raw peanuts sold in
Maputo City, Mozambique and associated factors.
Journal of Stored Products and Postharvest Research, 9 (6).
pp. 58-67.
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Abstract
Peanut seeds (Arachis hypogaea L.) are consumed worldwide including Mozambique, due to good
taste, high nutritional value and easy accessibility. When found in suitable conditions of humidity and
high temperature, a fungus of the genus Aspergillus can contaminate peanuts and produce toxic
secondary metabolites called "aflatoxins" (AFs) which are not destroyed by usual thermal processes,
causing aflatoxicosis and liver cancer, when consumed frequently. This study aimed to identify the
concentration of aflatoxins B1 (AFB1) in raw peanuts seeds marketed in Maputo city and to analyze the
association with the storage conditions. Raw peanuts samples of 1 kg were acquired in 57 commercial
establishments in Maputo city (63.16% markets and 36.84% supermarkets). AFB1 concentration was
analyzed by ELISA test. Peanut storage conditions were analyzed in each sampling spot. The results of
the study showed that the average concentration of AFB1 on peanut was 2.71 μg/kg (0.00 to 72.93). The
prevalence of AFB1 above the limit of European Union (EU) legislation (8 μg/kg) was 3.5%. The
significantly associated factors (p<0.05) were: Mozambican origin, presence of damaged kernels,
storage time over 15 days and container where the peanut was stored. Most factors were associated
with poor storage and measures should be taken to avoid the presence of these chemicals in peanuts.
In conclusion, the concentration of AFB1 in raw peanuts seeds was within the acceptable European
Union (EU) standards at 96.49%. Similar studies should be made in the country to identity the
concentration of these compounds and probable sources of contamination.
| Item Type: |
Article
|
| Uncontrolled Keywords: |
Aflatoxin B1, peanut, markets, supermarkets, Maputo, Mozambique |
| Author Affiliation: |
Department of Biological Sciences, Faculty of Sciences, Eduardo Mondlane University, Maputo, Mozambique |
| Subjects: |
Crop Improvement |
| Divisions: |
Groundnut |
| Depositing User: |
Mr T L Gautham
|
| Date Deposited: |
03 Jan 2019 05:34 |
| Last Modified: |
03 Jan 2019 05:34 |
| URI: |
http://eprints.icrisat.ac.in/id/eprint/15715 |
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