Abstract
A survey of the presence of aflatoxin M1 (AFM1) was carried out on eight traditional dairies belonging to four sectors of Fez city situated in the northern center of Morocco. Raw milk samples were collected between October 2009 and September 2010, and analyzed by LC-fluorescence detection after immunoaffinity purification. AFM1 was detected in 13 out of 48 samples (27%) at concentrations ranged between 10 and 100ng/l. Within these positive samples, four (∼8% of the total) were above the European legislation limit of 50ng/l. This study revealed a variation of contamination from one sector to another with a higher incidence in milk samples collected in autumn compared to those collected in other seasons suggesting a link between feeding practices, such as the use of silage and AFM1 contamination. This is the first report on AFM1 contamination in raw milk directly collected from Moroccan traditional dairies. The levels of contamination found justify more detailed and continuous monitoring to assess the public health implication and reduce consumers’ exposure to AFM1.
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