Monitoring of arsenic contents in domestic rice and human risk assessment for daily intake of inorganic arsenic in Korea
- Authors
- Lee, Seul Gi; Kim, Da Hyun; Lee, Young Seok; Cho, Seung-Yong; Chung, Myung-Sub; Cho, MinJa; Kang, YoungWoon; Kim, HyeJung; Kim, DongSul; Lee, Kwang-Won
- Issue Date
- 6월-2018
- Publisher
- ACADEMIC PRESS INC ELSEVIER SCIENCE
- Keywords
- Food analysis; HPLC-ICP-MS; Husked rice; Polished rice; Inorganic arsenic; Arsenic speciation; Dietary intake; Risk assessment
- Citation
- JOURNAL OF FOOD COMPOSITION AND ANALYSIS, v.69, pp.25 - 32
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF FOOD COMPOSITION AND ANALYSIS
- Volume
- 69
- Start Page
- 25
- End Page
- 32
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/75081
- DOI
- 10.1016/j.jfca.2018.02.004
- ISSN
- 0889-1575
- Abstract
- Rice can be the major contributor to exposure of inorganic arsenic (iAs). A total of 485 domestic rice (polished rice, n = 368; husked rice, n = 117) samples produced in 2014 were determined for total arsenic (tAs) and As species. The determination of As species was conducted by HPLC-ICP-MS. AsIII was the major detected species. AsV, DMA, and MMA were occurred in lower level in both types of rice. In polished rice, iAs represented 43-91% of tAs: tAs = 0.088 +/- 0.021 mg/kg; iAs = 0.060 +/- 0.013 mg/kg. In husked rice, iAs ranged from 55% to 91% of tAs; tAs = 0.160 +/- 0.042 mg/kg, iAs = 0.114 +/- 0.029 mg/kg. The iAs level of polished rice samples was below the current maximum limit of the Chinese and German standard (0.2 mg/kg for inorganic arsenic in milled rice). Also, husked rice samples did not exceed the standard for iAs. Average dietary exposure to iAs from polished rice consumption was calculated as 0.17 +/- 0.21 mu g/kg.bw/day which was 8.09% level of Provisional Tolerable Weekly Intake. The result obtained in the present study provide a reference data of iAs in Korean rice for the establishment of safety standards.
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