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Analysis of polychlorinated biphenyls ( PCB s), heavy metals and omega‐3 fatty acids in commercially available Korean functional fish oil supplements
Author(s) -
Lee JungBin,
Kim Mina K.,
Kim BoKyung,
Kim JyungYoun,
Lee KwangGeun
Publication year - 2016
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/ijfs.13198
Subject(s) - fish oil , eicosapentaenoic acid , docosahexaenoic acid , chemistry , polyunsaturated fatty acid , food science , peroxide value , environmental chemistry , cod liver oil , fatty acid , fish <actinopterygii> , biology , biochemistry , fishery
Summary In this study, the levels of polychlorinated biphenyls ( PCB s), heavy metals and omega‐3 polyunsaturated fatty acids (docosahexaenoic acid; DHA and eicosapentaenoic acid; EPA ), as well as chemical indices including acid and peroxide values were determined among twenty‐four commercially available functional fish oil supplements. The sum of indicator PCB congeners (congeners 28, 52, 101, 118, 138, 153 and 180) was below the limit of quantification of 0.043 mg kg −1 . Metallic compounds (Cd, Pb, Hg and As) were not detected in all fish oil supplement samples. The relative percentages of EPA and DHA in fish oil supplements ranged from 25% to 80%. The acid values ranged from 0.1 to 1.4 mg KOH per g oil, and peroxide values ranged from 2.7 to 28.8 meq per kg oil. All fish oil supplement samples tested in current study met the safety standard for fish oil supplements set by Korean government as well as International standard.