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KMID : 1134820100390071038
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Journal of the Korean Society of Food Science and Nutrition
2010 Volume.39 No. 7 p.1038 ~ p.1048
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The Content of Heavy Metals in Herbal Pills Used as General Processed Food and Risk Assessment of Heavy Metal Intakes
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Kim Sung-Dan
Kim Bok-Soon
Kim Min-Young
Chae Young-Zoo
Park Young-Ae
Jung Sun-Ok
Yun Eun-Sun
Chang Min-Su
Lee Yong-Chul
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Abstract
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The purpose of this study was to investigate some heavy metals (Pb, Cd, Cr, Cu, Hg) in 52 commercial herbal pills used as general processed food, to identify weekly heavy metal intakes from herbal pills and to evaluate their potential health risks. The samples were digested with a microwave and determinations of heavy metal residues were carried out by inductively coupled plasma mass spectrometry (ICP-MS) and mercury analyzer. The mean values of heavy metal contents for herbal pills used as general processed food were Pb 0.421 (0.032～1.630), Cd 0.157 (0.011～0.515), Cr 1.033 (0.112～9.933), Cu 6.923 (1.333～16.755), Hg 0.010 (0.001～0.088) ㎎/㎏. Lead contents of herba and cadmium of algae, herba were high (ANOVA-test, p<0.05). Levels of cadmium concentrations exceeding WHO reference values (0.3 ㎎/㎏) were observed in 10 samples (4 species). The significant correlation was observed between Pb and Cd (r=0.633, p<0.01). The weekly intakes of Pb, Cd, Cr, Cu, Hg from herbal pills were 1.112 (0.072～5.088), 1.614 (0.029～9.257), 3.000 (0.252～23.690), 0.182 (0.008～1.235), 0.220 (0.000～0.420)%, respectively, as compared with the Provisional Tolerable Weekly Intake (PTWI) established by Joint FAO/WHO Expert Committee for food safety evaluation. Our data suggest regulations limiting heavy metals in herbal pills used as general processed food.
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KEYWORD
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herbal pills, heavy metals, ICP-MS, mercury analyzer, PTWI
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