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KMID : 0380620070390020228
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Korean Journal of Food Science and Technology
2007 Volume.39 No. 2 p.228 ~ p.230
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Changes of Lead Content during Warm Storage of Canned Coffee Drinks
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Lee Mi-Gyung
Lee Kyung-Ju
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Abstract
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In this study, we investigated the change in lead content of canned coffee drinks while kept for 16 weeks in an incubator adjusted to . Our research aim was to ensure the safety of canned coffee purchased from vending machine and stores. The lead analysis were conducted by graphite furnace atomic absorption spectrometry after wet digestion using concentrated nitric acid. The results showed that the lead contents of all examined samples were very low at a level of not detected to 0.033 mg/L, and below 2 mg/kg, the Korean regulatory limit for the commodity. Also, no increase in lead content was observed over the elapsed time. Therefore, it appears that lead is not a hazard and need not be a concern in drinking canned coffee
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KEYWORD
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canned coffee drink, Lead content, warm storage
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