Occurrence of Aflatoxin Contamination in Milk and Dairy Products from Bishoftu and Its Surrounding
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Date
2017-11
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Addis Ababa University
Abstract
Aflatoxin contamination of milk in the Greater Addis Ababa milk shed Ethiopia
was reported in 2016, indicating a that high probability of contamination of milk
corning from the surrounding areas of Addis Ababa. Therefore, the objective of
this study was to investigate the occurrence of aflatoxin M1 (AFM1) in milk and
dairy products (cheese butter and yogurt) in Bishoftu (Ethiopia). The effect of
different dairy production processes to the concentration of AFM1 was also investigated.
In addition, KAP (Knowledge attitude and practice) study was conducted
on local producer and on employees from dairy industries. Milk (n=108),
cheese (82), yogurt (93) and butter (82) samples were taken from both industrial
and local producers by purchasing from their shops and the level of AFM1
was determined using ELISA (Enzyme Linked Irnmuno Sorbate Assay) method.
From 366 samples analysed 361 samples were found positive and the maximum
value of aflatoxin among all the analyzed samples was found in cheese which is
5.580+0.08I-'g/kg and the minimum (Not detected) in butter. Under comparing
the mean values of each dairy product type of local products with the industrial
products all the industrial products have a higher mean value r~lative to the local
one. In addition to this the KAP study shows though the local producers had
knowledge on mycotoxin related questions their knowledge specific to AFM1
practice towards reducing the contamination level of AFM1 is not enough. But
they have a positive attitude towards reduction of AFM1 level. Unlike the local
producers employees in dairy industry had a better practice towards reducing
the level of AFM1 contamination. Even though researches have been done about
level of AFM1 in milk so far, this shldy shows that the problem on the occurrence
of the toxin s till persists. Therefore, the government should establish a program
to regularly cheek AFM1 levels and take corrective mitigation measures.
Key words: Aflatoxin Ml, Milk, Cheese, Yogurt, ELISA, KAP assessment
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Keywords
Aflatoxin Ml, Milk, Cheese,, Yogurt, ELISA, KAP assessment