논문 상세보기
pp.308-314
This study was conducted to determine the content of heavy metals in canned foods and soft drinks available on the Korean markets. Trace metals (Pb, Cr, Cd, and Sn) were detected in 24 kinds, 120 samples by Atomic Absorption Spectrophotometer. The average concentration of heavy metals in canned foods was in the order of Sn (6.930 ppm)$gt;Cr (0.050 ppm)$gt;Pb (0.030 ppm)$gt;Cd (0.008 ppm), which was the same order in soft drinks as Sn (3.519 ppm)$gt;Cr (0.080 ppm)$gt;Pb (0.024 ppm)$gt;Cd (0.001 ppm). The total contents of heavy metals in canned fruits and fiuit juices were relatively higher than those in cans and drinks made of vegetable and fish. It can be supposed that the high acidity owing to the organic acid of fruit itself promotes to extract metals from can materials, and although fish usually contains more heavy metals than vegetables, canned fish revealed low level because internal organs and most of skin which had more heavy metals than meat were removed throughout canning process. Because processed foods such as canned foods and soft drinks are very popular with the children and adolescence according to the change of life style and eating habit, and the possibility of exposure to heavy metals by the habitual intake of these is increasing simultaneously, it is suggested that more practical study about the process of exposure and the amount in each step is needed for the assessment of safety.
