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Koo, Ye Ji; Pack, Eun Chul; Lee, Ye Jin; Kim, Hyung Soo; Jang, Dae Yong; Lee, Seung Ha; Kim, Young Soon; Lim, Kyung Min; Choi, Dal Woong
Food and chemical toxicology, November 2020, 2020-Nov, 2020-11-00, Volume: 145Journal Article
The effect of simulants, repeated use, washing, and oiling on the release of toxic metals from metallic kitchen utensils was investigated. The release of As, Cd, Cr, Ni, and Pb from kitchen utensils composed of stainless steel, aluminum, copper alloy, and cast iron into food simulants was quantified using inductively coupled plasma-mass spectrometry. The results show that this release of toxic metals was highly dependent on pH. Generally, the release of toxic metals tended to decrease with repeated use, and the release of Cr and Ni from stainless steel samples was significantly higher in the first test, compared to the third test. The washing conditions affected the release of As and Cr, whose release levels were higher when washing only with water and with a steel wool pad, respectively. Furthermore, oiling cast iron cookware reduced the release of As, Cd, Cr, and Ni into acidic simulants by 66%, 83%, 71%, and 15%, respectively. The margin of exposure (MOE) was calculated for each toxic metal; the calculated MOE values indicated that it is improbable that the current level of exposure from metallic kitchen utensils would pose a health risk in Korea. Display omitted •Toxic metal release from kitchen utensils into food simulants was investigated.•Simulant influence on the metal release under worst-case conditions was investigated.•Toxic metal release from metallic kitchen utensils decreased with repeated use.•Release levels of arsenic and chromium were affected by washing methods.•Calculated margin of exposures indicated an acceptable level of concern in Korea.
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