Polychlorinated biphenyls, hexachlorobenzene, hexachlorocyclohexane isomers, and pesticide organochlorine residues in cod-liver oil dietary supplements. 2004

Maria M Storelli, and Arianna Storelli, and Giuseppe O Marcotrigiano
Pharmacological-Biological Department, Chemistry and Biochemistry Section, Veterinary Medicine Faculty, University of Bari, Strada Prov le per Casamassima Km 3, 70010 Valenzano (Ba), Italy.

Levels of polychlorinated biphenyls (PCBs), hexachlorobenzene, hexachlorocyclohexane isomers (alpha, beta, gamma), and chlorinated pesticides (DDTs) in cod-liver oil used as a dietary supplement were determined. Total PCB and DDT concentrations varied from 25 to 201 ng g(-1) lipid weight basis and from 25 to 133 ng g(-1) lipid weight basis, respectively. Hexachlorobenzene contributed very little to the overall contaminant burden of dietary supplement oils, whereas hexachlorocyclohexane isomers were below the instrumental detection limits in all samples. The daily intake of PCBs and DDTs derived by the consumption of cod-liver oil at manufacturer-recommended doses varied from 0.004 to 2.01 microg/day and from 0.004 to 1.24 microg/day, respectively. Relative to some dioxin-like PCB congeners (mono-ortho PCB 105, 118, and 156; non-ortho PCB 77, 126, and 169), the intakes calculated varied from less than 0.001 to 0.74 pg of toxic equivalency values (TEQ) per kg of body weight per day. These values, although below the range of 1 to 4 pg of TEQ per kg of body weight per day set by the World Health Organization, emphasize the need for strict and continuous monitoring of fish oil contamination to reduce, as much as possible, the risks to human health.

UI MeSH Term Description Entries
D010573 Pesticide Residues Pesticides or their breakdown products remaining in the environment following their normal use or accidental contamination. Pesticide Residue,Residue, Pesticide,Residues, Pesticide
D011078 Polychlorinated Biphenyls Industrial products consisting of a mixture of chlorinated biphenyl congeners and isomers. These compounds are highly lipophilic and tend to accumulate in fat stores of animals. Many of these compounds are considered toxic and potential environmental pollutants. PCBs,Polychlorinated Biphenyl,Polychlorobiphenyl Compounds,Biphenyl, Polychlorinated,Biphenyls, Polychlorinated,Compounds, Polychlorobiphenyl
D003060 Cod Liver Oil Oil obtained from fresh livers of the cod family, Gadidae. It is a source of VITAMIN A and VITAMIN D. Liver Oil, Cod,Oil, Cod Liver
D003257 Consumer Product Safety The sum total of measures taken and regulatory policies enacted to ensure the safe use of consumer products. Safety, Consumer Product,Product Approval,Product Approvals,Product Safety, Consumer
D003634 DDT A polychlorinated pesticide that is resistant to destruction by light and oxidation. Its unusual stability has resulted in difficulties in residue removal from water, soil, and foodstuffs. This substance may reasonably be anticipated to be a carcinogen: Fourth Annual Report on Carcinogens (NTP-85-002, 1985). (From Merck Index, 11th ed) 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane,4,4'-DDT,4,4'-Dichlorodiphenyltrichloroethane,Benzochloryl,Chlorophenothane,TbisC-ethane,p',p'-DDT,4,4' DDT,4,4' Dichlorodiphenyltrichloroethane,TbisC ethane
D005506 Food Contamination The presence in food of harmful, unpalatable, or otherwise objectionable foreign substances, e.g. chemicals, microorganisms or diluents, before, during, or after processing or storage. Food Adulteration,Adulteration, Food,Adulterations, Food,Contamination, Food,Contaminations, Food,Food Adulterations,Food Contaminations
D006581 Hexachlorobenzene An agricultural fungicide and seed treatment agent. HCB
D001556 Hexachlorocyclohexane Any of several polyhalogenated organic compounds consisting of a six-carbon ring with one chlorine and one hydrogen attached to each carbon. Benzene Hexachloride,Lindane,gamma-Benzene Hexachloride,BHC Insecticide,Delitex,Epsilon-hexachlorocyclohexane,Eta-hexachlorocyclohexane,Gamma-666,Gammexane,Hexachlorane,Jacutin,Kwell,PMS-Lindane,Scabecid,Scabene,Scabisan,Tetocid,Zeta-hexachlorocyclohexane,gamma-HCH,gamma-Hexachlorocyclohexane,Epsilon hexachlorocyclohexane,Eta hexachlorocyclohexane,Gamma 666,Hexachloride, Benzene,Hexachloride, gamma-Benzene,Insecticide, BHC,PMS Lindane,Zeta hexachlorocyclohexane,gamma Benzene Hexachloride,gamma HCH,gamma Hexachlorocyclohexane
D019587 Dietary Supplements Products in capsule, tablet or liquid form that provide dietary ingredients, and that are intended to be taken by mouth to increase the intake of nutrients. Dietary supplements can include macronutrients, such as proteins, carbohydrates, and fats; and/or MICRONUTRIENTS, such as VITAMINS; MINERALS; and PHYTOCHEMICALS. Food Supplements,Neutraceuticals,Dietary Supplementations,Food Supplementations,Herbal Supplements,Nutraceuticals,Nutriceuticals,Dietary Supplement,Food Supplement,Herbal Supplement,Neutraceutical,Nutraceutical,Nutriceutical,Supplement, Food,Supplement, Herbal,Supplementations, Dietary,Supplements, Dietary,Supplements, Food,Supplements, Herbal

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