Aflatoxin M1 contamination of raw and pasteurized milk produced in Sanandaj, Iran
2010
Mafakheri, Sh. | Ghasemipour, N. | Khezri, M. | Mohammadian, B. | Poorghafour Langroudi, P.
This study was conducted to evaluate and compare the levels of aflatoxin M1 in raw and pasteurized milk samples during different seasons by Enzyme- Linked Immuno Sorbent Assay in Sanandaj, Iran. In 257 (94.49%) out of 272 milk samples the presence of aflatoxin M1 was detected in concentrations ranging between 0.007 and 115.930 ng/l. AFM1 level in 12 (4.4%) of positive samples were higher than the maximum tolerance limit (50 ng/l) accepted by Iran and European Union countries. Statistical evaluations showed that the differences between raw and pasteurized samples were not significant (p<0.05). There was no significant difference between spring and summer but the differences between other seasons were statistically significant. Winter samples with 22.35 ng/l and summer samples with 5.14 ng/l had the highest and lowest concentration, respectively (p<0.05). Since contamination of milk with aflatoxin is a potential risk for human health, milk and milk products should be controlled periodically for Aflatoxin contamination.
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