Browse > Article

Trace Metal Contents in Tea Products and Their Safety Evaluations  

Chung, So-Young (Department of Food Evaluation, Korea Food and Drug Administration)
Kim, Jung-Soo (Department of Food Evaluation, Korea Food and Drug Administration)
Kim, Eun-Jeong (Department of Food Evaluation, Korea Food and Drug Administration)
Park, Sung-Kug (Department of Food Evaluation, Korea Food and Drug Administration)
Kim, Mee-Hye (Department of Food Evaluation, Korea Food and Drug Administration)
Hong, Moo-Ki (Department of Food Evaluation, Korea Food and Drug Administration)
Kim, Myung-Chul (Department of Food Evaluation, Korea Food and Drug Administration)
Lee, Jong-Ok (Department of Food Evaluation, Korea Food and Drug Administration)
Publication Information
Korean Journal of Food Science and Technology / v.35, no.5, 2003 , pp. 812-817 More about this Journal
Abstract
This study was conducted to estimate the contents of heavy metals in tea products (n=200) and to provide a scientific basis for standardization of heavy metals in the Korea Food Code. The contents of mercury (Hg), lead (Pb), cadmium (Cd), arsenic (As), copper (Cu), manganese (Mn), zinc (Zn), and aluminium (Al) were determined using a mercury analyzer, an AAS (atomic absorption spectrophotometer), and ICP (inductively coupled plasma spectrometer). The values of heavy metals in tea products were [minimum-maximum (mean), mg/kg] Hg: $N.D.{\sim}0.02$ (0.003), Pb: $N.D.{\sim}0.35$ (0.03), Cd: $N.D.{\sim}0.07$ (0.007), As: $N.D.{\sim}0.19$ (0.006), Cu: $N.D.{\sim}24.41$ (2.73), Mn: $N.D.{\sim}767.88$ (66.91), Zn: $N.D.{\sim}18.60$ (4.54), Al: $N.D.{\sim}1304.30$ (85.53). These results showed that metal contents in tea products in our markets were similar to those reported in other countries. The average weekly intakes of lead, cadmium, and mercury from tea products were $0.1{\sim}0.2%$ of PTWI (Provisional Tolerable Weekly Intake) that the JECFA (Joint FAO/WHO Expert Committee on Food Additives) has set to evaluate their safeties.
Keywords
tea products; heavy metals; safety;
Citations & Related Records
연도 인용수 순위
  • Reference
1 FAO and WHO. Joint FAO/WHO Food Standards Programme: Contarninants, Codex Alimentarius. Rome, Italy (1984)
2 Baik, D.W., Kwon, W.C., Won, K.P., Kim, J.H., Kim, O.H., Sho, Y.S., Kim, Y.J., Park, K.S., Seong, D.H., Seo, S.C. and Lee, K.J. Study on the contents of trace elements in foods (On the trace element contents of shellfish in Korean coastal waters). Rep. Natl. Inst. Health Korea 23: 589-610 (1986)
3 Kim, K.S., Lee, J.O., Sho, Y.S., Seo, S.C., Chung, S.Y., Yoo, S.Y., Song, K.H., Son, Y.W, Lee, H.B. and Kwon, W.C. Study on the trace metal contents in food (Trace metal contents of cereals, pulses and potatoes produced in Korea). Rep. Natl. lnst. Health Korea 29: 365-377 (1992)
4 Australia Food Authority. The 1992 Australian Market Basket Survey-A Total Diet Survey of Pesticides and Contaminants. Australia (1992)
5 Fernandez, P.L., Pablos, F., Martin, M.J. and Gonzalez, A.G. Multi-element analysis of tea beverages by inductively coupled plasma atomic emission spectrometry. Food Chem. 76: 483-489 (2002)   DOI   ScienceOn
6 Kwon, W.C., Won, K.P., Kim, J.W, Kim, O.H., Sho, Y.S., Kim, Y.J., Park, K.S., Sung, D.H., Lee, K.J. and Baik, D.W. Study on the contents of trace elements in foods (On the trace element contents of fish in Korean coastal waters). Rep. Natl. Inst. Health Korea 24: 733-746 (1987)
7 FAO. Summary of Evaluations Performed by the Joint FAO/WHO Expert Committee on Food Additives (JECFA). ILSI, Geneva (1994)
8 Lee, S.J., Kim, M.J. and Yoon, Y.H. Removal of heavy metals and detoxication of Korean green tea, oolong tea and black tea. Food Sci. Ind. 28: 17-28 (1995)
9 Baik, D.W., Kwon, W.C., Won, K.P., Kim, J.W, Sho, Y.S., Lee, H.D., Park, K.S., Seong, D.W., Lee, M.S. and Lee, K.J. Study on the contents of trace elements in foods (On the trace element contents of shellfish in Korean coastal waters).Rep. Natl. Inst. Health Korea 25: 551-564 (1988)
10 KFDA. Food Code. Korea Food and Drug Administration, Seoul, Korea (1999)
11 WHO. Guidelines for the Study of Dietary Intakes of Chemical Contaminants. WHO Offset Publication No. 87, WHO, Geneva (1985)
12 Kwon, W.C., Won, K.P., Kim, J.W., Sho, Y.S., Lee, H.D., Park, K.S., Lee, J.O., Seong, D.W., Seo, J.S., Kim, M.H., Lee, K.J. and Baik, D.W. Study on the contents of trace elements in food (On the trace element contents of fish in Korean coastal waters). Rep. Natl. Inst. Health Korea 26: 447-460 (1989)
13 Kim, K.S., Kim, C.M., Sho, Y.S., Seo, S.C., Chung, S.Y., Yoo, S.Y., Song, K.H., Kim, J.S. and Lee, H.B. Study on the trace metal contents in food (On the trace metal contents of cereals, pulses and potatoes in Korea). Rep. Natl. Inst. Health Korea 31: 437-449 (1994)
14 KFDA. Food Code. Korea Food and Drug Administration, Seoul, Korea (2002)
15 Won, K.P., Kim, N.K., Sho, Y.S., Chung, S.Y., Yun, H.K, Kim, H.D. and Chang, M.l. A monitoring study on the trace metal contents in foods (The trace metal contents of agricultural products (cereals, legumes, root crops, vegetables and fruits) grown in Korea). Ann. Rep. KFDA 1: 58-70 (1996)
16 Dabeka, R.W., McKenzie, A.D., Lacroix, G.M.A., Cleroux, C., Bowe, S., Graham, R.A. and Conacher, H.B.S. Survey of arsenic in total diet food composites and estimation of the dietary intake of arsenic by Canadian adults and children. J. AOAC lnt. 76: 14-25 (1993)
17 Suseela, B., Bhalke, S., Vinod Kumar, A., Tripathi, R.M., and Sastry, V.N. Daily intake of trace metals through coffee consumption in India. Food Addit. Contam. 18: 115-120 (2001)   DOI   ScienceOn
18 Ikebe, K., Tanaka, Y., Tanaka, R. and Kunita, N. Contents of heavy metal elements in food (processed food). J. Food Hyg. Soc. Japan 18: 64-74 (1977)
19 Baik, D.W., Kwon, W.C., Shin, K.H., Kim, J.H., Kim, O.H., Sho, Y.S., Park, K.S. and Ahn, J.S. Study on the trace element contents of fish in Korean coastal waters. Rep. Natl. Inst. Health Korea 22: 471-494 (1985)
20 Sakae, S., Tarema, N. and Siradan, T. Determination of cobalt and nickel in plant material by graphite furnace atomic absorption spectrometry. Bunseki Kagaku 38: 429-433 (1989)   DOI
21 Kim, K.S., Lee, J.O., Sho, Y.S., Seo, S.C., Kang, H. K., Yoo, S.Y., Choi, B.H., Kwon, Y.B. and Baik, D.W. Study on the trace element contents in food (On the trace element contents of fish and shellfish in Korean coastal waters). Rep. Natl. lnst. Health Korea 28: 354-365 (1991)
22 Kim, K.S., Lee, J.O., Sho, Y.S., Seo, S.C., Chung, S.Y., You, S.Y., Song, K.H., Son, Y.W, Lee, H.B. and Kwon, W.C. Study on the trace metal contents in food (On the trace metals contents of vegetables and fruits produced in Korea). Rep. Natl. lnst. Health Korea 30: 366-377 (1993)
23 Onianwa, P.C., Adetola, I.G., Iwegbue, C.M.A., Ojo, M.F. and Tella, O.O. Trace heavy metals composition of some Nigerian beverages and food drinks. Food Chem. 66: 275-279 (1999)   DOI   ScienceOn
24 Hong, M.K, Kim, M., Sho, Y.S., Chung, S.Y, Yun, H.K., Chang, M.I., Kim, J.S., Cho, J. B., Chung, T.Y. and Lee, S.H. The study on the scientific standardization of heavy metals in foods (sugar and sugar products). Ann. Rep. KFDA 3: 36-45 (1999)
25 FAPAS. Report to participants in food analysis performance assessment schem-Metallic contaminants: Series VII: Round 26, FAPAS, York, UK (2000)
26 Kim, K.S., Lee, J.O., Sho, Y.S., Seo, S.C., Kang, H.K., Seo, J.S., Kim, M.H., Kwon, Y.B. and Baik, D.W. Study on the trace element contents in food (On the trace element contents of shellfish in Korean coastal waters). Rep. Natl. Inst. Health Korea 27: 388-397 (1990)
27 Won, K.P., Kim, C.M., Sho, Y.S., Seo, S.C., Chung, S.Y., Yoo, S.Y., Song, K.H., Kim, J.S. Kim, H.D. and Kim, K.S. The study on the trace metal contents in food (On the trace metals contents of cereals, pulses, potatoes, vegetables and fruits in Korea). Rep. Natl. Inst. Health Korea 32: 456-469 (1995)
28 Tanaka, Y., lkebe, K., Tanaka, R. and Kunita, N. Contents of heavy metals in foods - average contents of heavy metals in vegetables. Shokuhin Eiseigaku Zasshi 15: 313-319 (1974)   DOI
29 MOHW. Report on 2001 National Health and Nutrition SurveyNutrition survey I. Ministry of Health and Welfare, Seoul, Korea (2002)