نوع مقاله : مقاله پژوهشی
نویسندگان
ندارد
چکیده
کلیدواژهها
عنوان مقاله [English]
Fish oil is one of the best sources of fatty acids dietary supply. Recently, use of fish oil is
enhanced based on its useful effects on human health. Unfortunately, due to industrial pollution,
many fish and fish oils have high levels of mercury. Mercury is one of the most poisonous
microelement for the ecosystem. mercury is toxic and can damage the brain and the nervous
system. The main object of this research was the assessment of Omega-3 fish oil pollution with
mercury derived from shark and tuna fish in post-market surveillance in Tehran by cyclic
voltammetry. For this pupose fourteen fish oil brands was collected from market retail and
transferred to the laboratory. In this research, closed vessel microwave extraction and cyclic
voltammetric method was employed. The digestion process was perfomed via four steps in a
constant 50 bar pressure and a gradiant temperature from 145 to 200 ˚C. The mercury content of
fish oils was in the range of 11.03–107.11 ng/ml. Validation of parameters reveal that the
precision of developed method was 2.3 percent in mean standard deviation. In conclusion, fish
such as swordfish and shark and tuna fish are also a source of exposure to the heavy metal
toxin, mercury. So the potential toxicity of omega 3 fish oil capsules with mercury must be
considered and it is necessary to measure the mercury content of these capsules with a simple,
precise, accurate and economic method.
کلیدواژهها [English]
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