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http://dx.doi.org/10.9721/KJFST.2011.43.5.525

Monitoring Heavy Metals in Meat and Meat Products  

Hwang, Tae-Ik (Imported Food Analysis Division, Gyeongin Regional Korea Food and Drug Administration)
Ahn, Tae-Hyun (Imported Food Analysis Division, Gyeongin Regional Korea Food and Drug Administration)
Kim, Eun-Jung (Imported Food Analysis Division, Gyeongin Regional Korea Food and Drug Administration)
Lee, Jung-Ah (Imported Food Analysis Division, Gyeongin Regional Korea Food and Drug Administration)
Kang, Myoung-Hee (Imported Food Analysis Division, Gyeongin Regional Korea Food and Drug Administration)
Jang, Young-Mi (Imported Food Analysis Division, Gyeongin Regional Korea Food and Drug Administration)
Kim, Mee-Hye (Food Contaminants Division, Korea Food and Drug Administration)
Publication Information
Korean Journal of Food Science and Technology / v.43, no.5, 2011 , pp. 525-531 More about this Journal
Abstract
This study was conducted to examine the contents of lead (Pb), cadmium (Cd), arsenic (As), and mercury (Hg) in meat and meat products in Korea. The contents of Pb, Cd, As, and Hg in 466 samples of beef, pork, chicken, duck, ham, and sausage were measured using inductively coupled plasma mass spectrometry or a mercury analyzer. Wet ashing and microwave method were compared, and the recovery and reproducibility of the microwave method were better than those of wet ashing for meat and meat products. The recovery of the microwave method was 98.1% for Pb, 104.6% for Cd, and 103.4% for As, respectively. The best result was obtained through digestion using an acid mixture ($HNO_3$/$H_2O_2$, 6:2). Hg content was measured using a mercury analyzer. As a result, the contents of Hg and Cd in samples were lower than those of Pb and As. The average contents of Pb were 0.009 mg/kg in beef, 0.010 mg/kg in pork, 0.006 mg/kg in chicken, 0.007 mg/kg in duck, 0.005 mg/kg in ham, and 0.009 mg/kg in sausage. The average Cd contents were 0.0004 mg/kg in beef, 0.0004 mg/kg in pork, 0.0005 mg/kg in chicken, 0.0012 mg/kg in duck, 0.0015 mg/kg in ham, and 0.0019 mg/kg in sausage. The average As contents were 0.016 mg/kg in beef, 0.004 mg/kg in pork, 0.021 mg/kg in chicken, 0.010 mg/kg in duck, 0.014 mg/kg in ham, and 0.018 mg/kg in sausage. The average Hg contents were 0.713 ${\mu}g/kg$ in beef, 0.902 ${\mu}g/kg$ in pork, 0.710 ${\mu}g/kg$ in chicken, 0.796 ${\mu}g/kg$ in duck, 1.141 ${\mu}g/kg$ in ham, and 1.052 ${\mu}g/kg$ in sausage. Based on the results of the National Health and Nutrition Survey 2005, the levels of dietary exposure to heavy metal contaminants in meat and meat products were compared with the provisional tolerable weekly intake(PTWI) established by the Joint FAO/WHO Expert Committee on Food Additives. The average dietary exposure of the general population from meat and meat products was 0.03-0.2% of PTWI for Pb, Cd, As, and Hg, which indicates a safe level for public health at present.
Keywords
heavy metal; lead; cadmium; arsenic; mercury; meats;
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Times Cited By KSCI : 4  (Citation Analysis)
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