Safety of Black Sea dogfish meat by heavy metals content

Authors

  • Olena SYDORENKO Kyiv National University of Trade and Economics https://orcid.org/0000-0001-5919-4370
  • Nadya BOLILA Kyiv National University of Trade and Economics
  • Vasyl KOROTETSKYY State enterprise "Selection-genetic center of fish farming "Podylla"

Keywords:

heavy metals, permissible levels, dogfish, oxicological effect, Lead, Zinc

Abstract

Background. Today stocks of shark Black Sea dogfish in the Ukrainian sea waters aren't used effectively – only 0.2–0.8 % of the possible amount within the last ten years.
Due to continuous pollution of the marine environment with chemical toxicants determining their number in the tissues of commercial fish is obligatory.
The aim is to study the content and distribution of heavy metals in the tissues of the Black Sea dogfish of specified size-mass characteristics.
Material and methods. The object of the study was mature Black Sea dogfish caught near Tarkhankut cape (Crimea). The average weight of fish was 10.25 ± 0.55 kg; length – 1.27 ± 0.02 m. Sharks caught were frozen and stored at 32 оС. Samples of muscle tissue from the abdominal part at a depth of 4 cm and 1.5 cm from the body surface were selected for the experiment.
Comparative analysis of Lead and Zinc was conducted in the meat of dogfish shark and the following fish species: horse mackerel, golden mullet, silver carp,whiting.
The content of heavy metals (Lead, Cadmium, Arsen, Copper, Zinc) was determined by atomic emission spectrometry with inductively coupled plasma using device Optima 2100 DV firm Perkin Elmer (USA).
Results. Results of the experiment showed that in the sample muscle of dogfish quantitative content of Lead, Cadmium, Copper, Zinc was significantly lower than permissible levels: Copper 156–159 times less, Zinc – 11–17, Lead – 5–9, Cadmium – 6.7 times. Arsen at a depth of 4 cm from a surface of a body of a shark was at permissible level, and at a depth of 1.5 cm –exceeded it, though not insignificantly.
Comparison showed that the silver carp has the lowest content of lead – 0.03 mg/kg, meat of a dogfish shark has rather low level – 0.14 mg/kg, golden mullets– 0.52 and whiting – 0.66 mg/kg. The highest concentration of zinc was identified in tissues of a horse mackerel and golden mullet – 27.4 and 21.5 mg/kg respectively. The smallest value of this indicator had a dogfish shark and a silver carp – 2.9 mg/kg.
Conclusion. Evaluation of toxicological safety of a dogfish shark showed that the quantitative content of heavy metals (Lead, Cadmium, Copper, Zinc) is not exceeding the maximum permissible concentration (MPC) for marine fish according to the laws of Ukraine.

Author Biographies

Olena SYDORENKO, Kyiv National University of Trade and Economics

Doctor of Technical Sciences, Professor

Nadya BOLILA, Kyiv National University of Trade and Economics

Postgraduate

Vasyl KOROTETSKYY, State enterprise "Selection-genetic center of fish farming "Podylla"

Director

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Published

2015-12-15

How to Cite

SYDORENKO О., BOLILA Н., & KOROTETSKYY В. (2015). Safety of Black Sea dogfish meat by heavy metals content. NTERNATIONAL CIENTIFIC-RACTICAL OURNAL OMMODITIES ND ARKETS, 20(2), 124–132. etrieved from https://journals.knute.edu.ua/commodities-and-markets/article/view/1256

Issue

Section

PROBLEMS OF GOOD SAFETY

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