Measurement and comparison of selenium in some marine, freshwater and farmed fishes of Ahwaz market

Subject Areas : Food Science and Technology

M. Velayatzadeh ¹ ( Young Researchers and Elite Club, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran )

Received: 2016-05-11 Accepted : 2018-03-04 Published : 2018-12-22

Keywords: selenium, Ahvaz, Marine fish, Farmed fish,

Abstract :

The aim of this study was to determine selenium concentration of 16 different species of fish marketed in Ahvaz. For this purpose, 96 samples were obtained randomly. The highest and lowest concentrations of selenium in marine fishes were measured in Liza klunzingeri and Platycephalus indicus (0.618±0.01 and 0.409±0.02 mg/Kg, respectively). Moreover, in freshwater fishes, the highest and lowest concentrations of selenium were found in Carasobarbus luteus and Barbus shrpeyi (0.291±0.01 and 0.251±0.02 mg/Kg, respectively). Among farmed fishes, the highest and lowest concentrations of selenium were determined in Oncorhynchus mykiss and Aristichthys nobilis (0.202±0.009 and 0.147±0.001 mg/Kg, respectively). The concentrations of selenium in marine, freshwater and farmed fishes were significantly different (P<0.05). The concentration of selenium in marine fishes was higher than the freshwater and farmed fishes. However, in farmed fishes was lower than the marine and freshwater fishes. The pattern of selenium accumulation in three types of fishes was found as marine fishes > freshwater fishes > farmed fishes. In this study concentration of selenium in the muscle of 16 species of fish was lower than standards limit (2 mg/Kg).

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