Author/Authors :
Bashiri Dezfouli, Ali Department of Basic Sciences - Faculty of Veterinary Medicine - University of Tehran, Tehran, Iran , Salar-Amoli, Jamileh Department of Basic Sciences - Faculty of Veterinary Medicine - University of Tehran, Tehran, Iran , Ali-Esfahani, Tahereh Department of Basic Sciences - Faculty of Veterinary Medicine - University of Tehran, Tehran, Iran , Hosseini, Hedayat National Nutrition Food Technology Research Institute (NNFTRI) - Shahid Beheshti University of Medical Sciences, Tehran, Iran , Ghanati, Kiandokht National Nutrition Food Technology Research Institute (NNFTRI) - Shahid Beheshti University of Medical Sciences, Tehran, Iran
Abstract :
Due to hygienic risks of mercury residues in food and marine originated supplements,
measuring total mercury and methyl mercury contents of canned tuna as a highly consumable
marine food product is essential. In this study, 40 canned Tuna fish (from Persian Gulf) were
collected in 2015 and then flame atomic absorption spectrometer (FAAS) and thermo gas
chromatography mass spectrophotometry were used to measure total mercury and methyl
mercury, respectively. The results indicated that the average contents of total mercury and
methyl mercury of the canned tunas, with 34.2 and 29.5 ppb decrements compared with 2009’s
measurement, were 177.4 and 143.7 ppb respectively. The highest concentration of the total
mercury was 315.2 while it was 267.9 ppb for methyl mercury. This study showed that the
content of the mercury in canned tunas of the Persian Gulf was less than the Maximum Residue
Limit (MRL).
Keywords :
Food hygiene , Persian Gulf , Canned tuna , Methyl mercury , Mercury
