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LETTER TO THE EDITOR
Year : 2016  |  Volume : 5  |  Issue : 2  |  Page : 62

Bromide contamination in rice, cancer risk for consumer


1 Primary Care Unit, KMT Center, Bangkok, Thailand
2 Hainan Medical University, China; Faculty of Medicine, University of Nis, Serbia

Date of Web Publication3-May-2016

Correspondence Address:
Sora Yasri
Primary Care Unit, KMT Center, Bangkok
Thailand
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2278-330X.181628

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How to cite this article:
Yasri S, Wiwanitkit V. Bromide contamination in rice, cancer risk for consumer. South Asian J Cancer 2016;5:62

How to cite this URL:
Yasri S, Wiwanitkit V. Bromide contamination in rice, cancer risk for consumer. South Asian J Cancer [serial online] 2016 [cited 2019 Dec 14];5:62. Available from: http://journal.sajc.org/text.asp?2016/5/2/62/181628

Dear Editor,

Rice is the common food for people in Asian. The contamination in rice is reported and this becomes the great concern in global public health. There are many possible contaminants in rice. Pesticide residues are an important group of contaminants. [1] According to the report of Caldas and Souza, bromide was the contaminant that can be identified in very high amount. Basically, bromide is use as a chemical agent for prevention of moth to destroy rice. However, there are several health problems due to bromide exposure. [2] Focusing on cancer risk, it is accepted that bromide has a strong relationship to cancer. Prostate and stomach cancers are the two important cancers that have many reports on the relationship to bromide exposure. [3],[4] Hence, it is no doubt that the screening for bromide contaminant in rice product is required as a method for guarantee for consumer's safety. Many countries implement policies against imported bromide contaminated rice (the general threshold limit value [TLV] is 5 ppm). Here, the authors would like to present the observation on increased bromide contamination level in rice product. In Thailand, the previous report in 1998 showed the bromide contaminated level equal to 0.75 ppm, which is considered lower than the TLV level. [5] However, in the 2013 report, the contamination level increased to as high as 7.42 ppm (BioThai Foundation-2013). It can be seen that about 10 times increased of level can be seen in 15 years period. It can also be seen that the latest report is higher than TLV. Since the general Thai daily intake rice, it is classified as a high user [3] and the relative risk for cancer development, based on Barry et al.'s report, [3] is equal to 3.13. Since rice is important source of food for the Asian, the control of bromide contamination, which can like to the future cancer development, is strongly suggested. Focusing of high contamination, it might relate to the finding that the gastric cancer is high among the Asian who regularly intake rice comparing to the non-Asian. [6]

 
  References Top

1.
Caldas ED, Souza LC. Chronic dietary risk for pesticide residues in food in Brazil: An update. Food Addit Contam 2004;21:1057-64.  Back to cited text no. 1
    
2.
National Toxicology Program. NTP toxicology and carcinogenesis studies of methyl bromide (CAS: 74-83-9) in B6C3F1 mice (inhalation studies). Natl Toxicol Program Tech Rep Ser 1992;385:1-212.  Back to cited text no. 2
[PUBMED]    
3.
Barry KH, Koutros S, Lubin JH, Coble JB, Barone-Adesi F, Beane Freeman LE, et al. Methyl bromide exposure and cancer risk in the Agricultural Health Study. Cancer Causes Control 2012;23:807-18.  Back to cited text no. 3
    
4.
Budnik LT, Kloth S, Velasco-Garrido M, Baur X. Prostate cancer and toxicity from critical use exemptions of methyl bromide: Environmental protection helps protect against human health risks. Environ Health 2012;11:5.  Back to cited text no. 4
    
5.
Sungwaranond B, Jongmeevasana P, Thoophom G. Gas chromatographic determination of inorganic bromide in rice and glutinous rice. Bull Sci Dept 1998;40:171-7.  Back to cited text no. 5
    
6.
Saika K, Sobue T. Cancer statistics in the world. Gan To Kagaku Ryoho 2013;40:2475-80.  Back to cited text no. 6
    



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