اندازه‌گیری و مقایسه میزان سلنیوم در برخی ماهیان دریایی، آب شیرین و پرورشی بازار اهواز

نوع مقاله: مقاله پژوهشی

نویسنده

باشگاه پژوهشگران جوان و نخبگان، واحد اهواز، دانشگاه آزاد اسلامی، اهواز، ایران

چکیده

این تحقیق با هدف مقایسه میزان سلنیوم در 16 گونه مختلف ماهی انجام شد. نمونه­برداری به‌صورت کاملاً تصادفی انجام شد و 96 عدد ماهی از بازار ماهی‌فروشان شهر اهواز تهیه گردید. در ماهیان دریایی بالاترین و پایین­ترین میزان عنصر سلنیوم در دو گونه مید و زمین­کن دم­نواری به‌ترتیب 01/0±618/0 و 02/0±409/0 میلی­گرم در کیلوگرم بود. در ماهیان آب شیرین بالاترین و پایین­ترین میزان سلنیوم در دو گونه ماهی حمری و بنی به‌ترتیب 01/0±291/0 و 02/0±251/0 میلی­گرم در کیلوگرم به‌دست آمد. در ماهیان پرورشی بالاترین و پایین­ترین میزان سلنیوم در دو گونه قزل­آلای رنگین­کمان و کپور سرگنده به‌ترتیب 009/0±202/0 و 001/0±147/0 میلی­گرم در کیلوگرم بود. میانگین غلظت عنصر سلنیوم در ماهیان دریایی، آب شیرین و پرورشی اختلاف معنی­داری داشت (P<0.05). میانگین میزان این عنصر در ماهیان دریایی نسبت به گونه­های آب شیرین و پرورشی بالاتر بود (P<0.05). هم‌چنین در ماهیان پرورشی نسبت به ماهیان آب شیرین پایین­تر به‌دست آمد (P<0.05). الگوی تجمع مقادیر عنصر سلنیوم به‌صورت ماهیان دریایی > ماهیان آب شیرین > ماهیان پرورشی بود. در این تحقیق میزان سلنیوم در عضله 16 گونه مورد مطالعه پایین­تر از استاندارد اعلام شده (2 میلی­گرم در کیلوگرم) بود.

کلیدواژه‌ها


عنوان مقاله [English]

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

نویسنده [English]

  • M. Velayatzadeh
Young Researchers and Elite Club, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
چکیده [English]

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).

کلیدواژه‌ها [English]

  • Marine fish
  • Farmed fish
  • selenium
  • Ahvaz
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