Health Research Registry List

Research Registry No : HRID-00134_V6
University Departmental Research :
Registration Date : 2019-05-17
Title of Research : Quantification of Heavy Metals in White Rice and Brown Rice from Thabaung Township
Principle Investigator : Phyo Wai zin
Co-authors : Khin Phyu Phyu, San San Htwe, Mya Marlar, Tin Tin Han, Khin Moe Latt, Ohnmar Win, Aye Thida Tun & Th
Field of Research : Others
Publication Source : Myanmar Health Sciences Research Journal, 2018; 30(2): P87-91
Year of Publication : 2018
URL of Publication :
Presentation Source : 45th Myanmar Health Research Congress. 2017; P21
Placement of Presentation : Department of medical research
Year of Presentation : 2017
Abstract : Rice is the major staple food of Myanmar. In general, there are two kinds of rice as white and brown rice. The evidence suggested that brown rice may contain more heavy metals especially arsenic than white rice. When the permissible concentration of heavy metals in the body becomes exceeded, they can cause serious health disorders. This cross-sectional study was aimed to determine the concentrations of heavy metals in white and brown rice from four villages of Thapaung Township, Ayeyawady Region. Six milled rice and six un-hulled rice samples were collected as white rice and brown rice samples, respectively. The concentration of ten kinds of heavy metals was determined by inductively coupled plasma-optical emission spectrometry (ICP-OES) (Perkin Elmer) Optima 8000. In brown rice samples, lead (Pb), zinc (Zn), copper (Cu), nickel (Ni), iron (Fe) and manganese (Mn) were detected above their respective maximum allowable concentration (MAC). However, arsenic (As), chromium (Cr) and cobalt (Co) were below their MAC. In white rice samples, Pb, Zn, Cu and Mn were above their respective MAC. However, these concentrations were lower than those of brown rice samples. Cadmium (Cd), As, Cr and Co in white rice samples were below their MAC as in brown rice samples. Among the highly toxic metals, As was not detected in both samples. However, one of the toxic metals, lead (Pb) was present above MAC in all samples of brown rice and white rice except one sample of white one and these concentrations were much lower than those of brown rice. Cd was present in all samples of brown and white rice but only one sample of brown rice had the concentration above MAC. Therefore, it can be highlighted that the studied white rice contained less heavy metals concentration than the studied brown rice.
IRB/PRC/ERC Approval Date : 2016-11-09
Placement of IRB/PRC/ERC : Department of medical Research
IRB/PRC/ERC Approval Letter/Document : PRC.pdf
Pre-existing Registration ID : -
Pre-existing Name of Organization : -
Pre-existing Website : -