Methylmercury varies more than one order of magnitude in commercial European rice

作者：Brombach Christoph Cornelius; Manorut Parinda; Kolambage Dona Piumi P P; Ezzeldin Mohammed Farouk; Chen Bin; Corns Warren T; Feldmann Jorg; Krupp Eva M^*

来源：Food Chemistry, 2017, 214: 360-365.

DOI：10.1016/j.foodchem.2016.07.064

• Mercury
• Methylmercury
• Speciation
• Rice
• Market survey
• Food quality

Rice is known to accumulate methylmercury (MeHg) in the rice grains. MeHg as a neurotoxin impacts on the human central nervous systems and especially on the developing brain. In this exploratory study, 87 commercial rice products sold in Europe, including nine baby-rice products, were analyzed for total Hg and MeHg content. MeHg concentration in all rice products investigated range from 0.11 to 6.45 mu g kg(-1) with an average value of 1.91 +/- 1.07 mu g kg(-1) and baby-rice is not significantly different from other rice products. Total Hg ranges from 0.53 to 11.1 mu g kg(-1) with an average of 3.04 +/- 2.07 mu g kg(-1). MeHg concentrations in all rice products studied in this work would not exceed the provisional tolerable weekly intake (PTWI). 30% of all commercial market rice products exceeded 10% of the PTWI calculated for toddlers or 13% of products for adults with rice based diet.

• 出版日期2017-1-1