| چکیده انگلیسی مقاله |
Background: The presence of Aflatoxin M1, a toxic, mutagenic, and carcinogenic substance, poses significant health risks. To this end, the aim of this study was to assess the levels of Aflatoxin M1 in raw, pasteurized, and sterilized milk obtained from the North Khorasan province, and to evaluate its potential impact on consumer health.
Methods: This descriptive-analytical study involved the random collection of 189 raw milk samples. Additionally, 70 pasteurized and sterilized milk samples from supermarkets in the North Khorasan province were included. All samples were assessed for Aflatoxin M1 contamination using the ELISA method, and statistical analysis (ANOVA) was performed on the results.
Results: The study found that the mean ± SD concentration of Aflatoxin M1 in raw milk from the North Khorasan province was 18.44 ± 34.6 ng/liter, while pasteurized and sterilized milk had a higher mean concentration of 42.8 ± 21.54 ng/liter. The lowest concentration was found in Bojnord at 9.30 ± 8.91 ng/liter, while the highest concentration was detected in Jajarm at 30.70 ± 80.50 ng/liter. The mean contamination of Aflatoxin M1 was not statistically significant (P-value=0.42) in most cities of the province. The study also revealed that 6.34% of raw milk and 11.4% of pasteurized milk samples had higher levels of Aflatoxin M1 than the maximum limit recommended by the National Standard Organization (100 ng/l). However, none of the milk samples exceeded the permissible limit set by the Veterinary Organization of the country (500 ng/l).
Conclusion: Based on the study's findings, the mean concentration of Aflatoxin M1 in both raw and pasteurized milk from the North Khorasan province is lower than the European :union: standard of 50 ng/l and the approved limit set by the country's veterinary organization of 500 ng/l. Therefore, it is not considered a significant threat to the health of adults. |
| نویسندگان مقاله |
| Mitra Salehi
North Khorasan University of Medical Sciences, Bojnourd, Iran.
| Akbar Solati
North Khorasan University of Medical Sciences, Bojnurd, Iran.
| Pezhman Bahari
Central Laboratory of North Khorasan Veterinary Organization, Bojnourd, Iran.
| Mahyar Sharifan
Head of Central Laboratory of North Khorasan Veterinary Organization, Bojnourd, Iran.
| Touhid Valizadeh
Laboratory Technician, Central Laboratory of North Khorasan Veterinary Organization, Bojnourd, Iran.
| Hamidreza Shoraka
Esfarayen University of Medical Sciences, Esfarayen, Iran.
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