Osong Public Health and Research Perspectives

Tayebe Ghiasvand

1 Article

The Occurrence and Risk Assessment of Exposure to Aflatoxin M₁ in Ultra-High Temperature and Pasteurized Milk in Hamadan Province of Iran: Amir Sasan Mozaffari Nejad, Ali Heshmati, Tayebe Ghiasvand; Osong Public Health Res Perspect. 2019;10(4):228-233. Published online August 31, 2019; DOI: https://doi.org/10.24171/j.phrp.2019.10.4.05

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Objectives

Aflatoxins are a category of poisonous compounds found in most plants, milk and dairy products. The present research was carried out to detect the presence of aflatoxin M₁ (AFM₁) in samples of milk collected from Hamadan province, Iran.

Methods

Twenty five samples of ultra-high temperature (UHT) and 63 samples of pasteurized milk were collected and the amount of AFM₁ was measured by an Enzyme-Linked Immunosorbent Assay method. In addition, the estimated daily intake (EDI) and hazard index (HI) of AFM₁ was determined by the following equations:(EDI= mean concentration of AFM₁ × daily consumption of milk/body weight; HI= EDI/Tolerance Daily Intake).

Results

AFM₁ was detected in 21 (84%) UHT milk samples and in 55 (87.30%) pasteurized milk samples. Seven (28%) samples of UHT and 21 (33.33%) pasteurized milk samples had higher AFM₁ content than the limit allowed in the European Union and Iranian National Standard Limits (0.05 μg/kg). None of the samples exceeded the US Food and Drug Administration limit (0.5 μg/kg) for AFM₁. EDI and HI for AM₁ through milk were 0.107 ng/kg body weight/day, and 0.535, respectively.

Conclusion

A significant percentage of milk produced by different factories in Iran (84% of UHT and 87.3% of pasteurized milk) was contaminated with AFM₁. Therefore, more control and monitoring of livestock feeding in dairy companies may help reduce milk contamination with AFM₁. As the HI value was lower than 1, it can be assumed that there was no risk of developing liver cancer due to milk consumption.

Citations

Citations to this article as recorded by

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