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Baseline study on essential and trace elements in polished rice from South Korea

Authors
Jung, MCYun, STLee, JSLee, JU
Issue Date
Oct-2005
Publisher
SPRINGER
Keywords
background level; daily intake; South Korea; trace elements; white rice (Oryza sativa L.)
Citation
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH, v.27, no.5-6, pp.455 - 464
Indexed
SCIE
SCOPUS
Journal Title
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH
Volume
27
Number
5-6
Start Page
455
End Page
464
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/123216
DOI
10.1007/s10653-005-4221-2
ISSN
0269-4042
Abstract
In 2000, 63 (polished) white rice samples were collected in eight administrative areas all over South Korea and analyzed for 16 elements by inductively coupled plasma atomic emission spectrometry (ICP-AES). Potassium had the highest content, next to Mg, Ca, Si, Zn, Na, Al and Fe. Most of the samples contained worldwide average concentrations of essential and trace elements in rice grains reported by various researches. For inter-area differences in those elements in the rice, the statistical analysis showed no significant differences (p > 0.05) among the eight administrative areas, suggesting that inter-area differences were not substantial in most cases. Thus, the present data can be used as national background levels of elements in rice produced in South Korea. Using the published data on daily consumption of rice in South Korea, it was possible to estimate the daily intake of As, Cd, Cu, Pb and Zn via rice. The results showed that a regular consumption of rice produced in Korea plays an important role in accumulation of essential and trace elements in Korean, especially for farm-households consuming relatively large amounts of rice.
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