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KMID : 0881720140290040334
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Journal of Food Hygiene and Safety
2014 Volume.29 No. 4 p.334 ~ p.339
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A Study on Migration of Heavy Metals from Kitchen Utensils Including Glassware, Ceramics, Enamel, Earthenware and Plastics
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Choi Jae-Chun
Park Se-Jong
Goh Hye-ah
Kim Mee-Hye
Lee Ju-Yeon
Eom Mi-Ok
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Abstract
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The purpose of our study was to investigate the migration level of lead (Pb), cadmium (Cd), antimony (Sb), arsenic (As), hexavalent chromium (Cr6+) and mercury (Hg) from cookwares into food simulants and to evaluate the safety of each heavy metals. The test articles for heavy metals were glassware, ceramics, enamel, earthenware, polypropylene and polyethylene cookwares for Pb and Cd, enamel for Sb, earthenware for As, polyethylene and polypropylene cookwares for Cr6+ and Hg. All the article samples of 391 intended for contact with foods were purchased in domestic markets. Pb, Cd, Sb and As were analyzed by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES), Cr6+ by UV visible spectrophotometer and Hg by mercury analyzer. The migration levels of heavy metals in all the samples were within the migration limits of Ministry of Food and Drug Safety (MFDS). As a result of safety evaluation, our results showed that the estimated daily intakes (EDI, mg/kg bw/day) were 9.12 × 10?6 and 8.83 × 10?7 for Pb and Cd from ceramics and 1.19 × 10?5 , 1.23 × 10?5 and 7.52 × 10?6 for Pb, Cd and Sb from enamel. Tolerable daily intakes (TDI, mg/kg bw/day) were established respectively as 0.0036, 0.00081, 0.0021, and 0.0006 for Pb, Cd, As and Hg by JECFA (Joint FAO/WHO Expert Committee on Food Additives), as 0.0060 for Sb by WHO (World Health Organization). When comparing with TDIs, the EDIs accounted for 0.25% and 0.11% for Pb and Cd from ceramics and 0.33%, 1.52% and 0.13% for Pb, Cd and Sb from enamel.
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KEYWORD
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glassware, ceramics, cookwares, heavy metal, ICP-OES
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