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http://dx.doi.org/10.9721/KJFST.2012.44.2.247

Analysis and Monitoring of Aflatoxin M1 in Milks  

Park, Sung-Kug (Food Contaminants Division, Food Safety Evaluation Department, Korea Food and Drug Administration)
Kang, Young-Woon (Food Contaminants Division, Food Safety Evaluation Department, Korea Food and Drug Administration)
Kwon, Ki-Sung (Food Contaminants Division, Food Safety Evaluation Department, Korea Food and Drug Administration)
Lee, Gwang-Ho (Food Contaminants Division, Food Safety Evaluation Department, Korea Food and Drug Administration)
Kim, Mee-Hye (Food Contaminants Division, Food Safety Evaluation Department, Korea Food and Drug Administration)
Publication Information
Korean Journal of Food Science and Technology / v.44, no.2, 2012 , pp. 247-250 More about this Journal
Abstract
Raw milk samples (n=28) obtained from milk tanks in 3 dairy plants of different regions and commercial milks (n=100) were collected from six cities. These samples were analyzed for the level of aflatoxin $M_1$ contamination using immunoaffinity columns and high performance liquid chromatography coupled with fluorescent detectors. Confirmation of aflatoxin $M_1$ ($AFM_1$) identified in positive samples was based on the formation of the hemiacetal derivative ($AFM_{2a}$) after derivatization with trifluroacetic acid. The average concentrations of aflatoxin $M_1$ in the raw milks were 25.1 ng/kg, and those values in commercial milks were 29.8 ng/kg. The highest level of aflatoxin $M_1$ in milk was 72.7 ng/kg. These results showed that the contamination of aflatoxin $M_1$ in milks consumed in the Korea was quite low compared to the standard in Korea Food Code (aflatoxin $M_1$ 500 ng/kg).
Keywords
aflatoxin M1; contamination; milk;
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