Marine and farmed fish on the Polish market: comparison of the nutritive value and human exposure to PCDD/Fs and other contaminants.
Chemical analyses were performed in nine fish species that are popular on the Polish market. These included Baltic fish (cod, herring, salmon), fish farmed in Poland (carp, trout), marine fish imported from China (Alaska pollock, sole), and farmed fish imported from Vietnam and China (sutchi catfish, tilapia). The nutritional composition (amino acid, micro- and macronutrients, fat-soluble vitamins - A(1), D(3), E) and certain contaminants (organochlorine pesticides, OCPs; indicator polychlorinated biphenyl, PCB(6); polychlorinated dibenzo-paradioxins and polychlorinated dibenzofurans, PCDD/Fs; dioxin-like polychlorinated biphenyls, dl-PCBs; organotin compounds, OCTs; dyes, malachite green and crystal violet; veterinary drug residues, nitrofurans and chloramphenicol; toxic metals, Cd, Pb, Hg) in the muscle tissues of fish were determined. It was confirmed that the fish species analyzed were excellent sources of amino acids, and were rich in phosphorous and selenium. Baltic Sea fish (salmon, herring), fish farmed in Poland (carp and trout), and tilapia were also rich in vitamin D(3). Traces of OCP, PCB(6), OCT, dyes, veterinary drug residues, and heavy metals were detected in concentrations which do not pose a threat to consumers at the current rate of fish consumption in Poland. However, the problem might arise from the content of PCDD/Fs and dl-PCBs in fatty Baltic fish. The fish species analyzed, differed in their nutritional values and degrees of contamination. We suggest that for optimum health and safety, it is advisable that consumers include a variety of different fish species in their diets.
National Marine Fisheries Research Institute, Department of Food and Environmental Chemistry, 1 Kołłataja Str, 81-332 Gdynia, Poland. jszlinder@mir.gdynia.pl
Joanna
J
Szlinder-Richert
Zygmunt
Z
Usydus
Małgorzata
M
Malesa-Ciećwierz
Lucyna
L
Polak-Juszczak
Wiesława
W
Ruczyńska
D000596:Amino Acids / Q000032:analysis; D000818:Animals; D001572:Benzofurans / Q000032:analysis*; D004396:Coloring Agents / Q000032:analysis; D000072338:Dibenzofurans, Polychlorinated; D004781:Environmental Exposure; D004785:Environmental Pollutants / Q000032:analysis*; D005399:Fishes; D006801:Humans; D006843:Hydrocarbons, Chlorinated / Q000032:analysis; D008670:Metals / Q000032:analysis; D009132:Muscles / Q000737:chemistry; D009753:Nutritive Value; D011044:Poland; D011078:Polychlorinated Biphenyls / Q000032:analysis; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis; D017747:Seafood / Q000032:analysis; D014815:Vitamins / Q000032:analysis
D000596:Amino Acids; D001572:Benzofurans; D004396:Coloring Agents; D000072338:Dibenzofurans, Polychlorinated; D004785:Environmental Pollutants; D006843:Hydrocarbons, Chlorinated; D008670:Metals; D000072317:Polychlorinated Dibenzodioxins; D014815:Vitamins; D011078:Polychlorinated Biphenyls