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Busan, South Korea

Park J.S.,Busan Regional Agency | Lee C.H.,Busan Regional Agency | Kwon E.Y.,Busan Regional Agency | Lee H.J.,Busan Regional Agency | And 2 more authors.
Food Control | Year: 2010

In order to obtain the level of biogenic amines in fish and fish products, a reversed phase high performance liquid chromatographic method was used for the quantitation of 12 biogenic amines in 300 fish and 80 fish products in Korea. Biogenic amines were extracted with hydrochloric acid, derivatized with dansyl chloride, separated using gradient elution, and detected by photodiode array and all detected biogenic amines were identified by UPLC/MS/MS. The detection levels of biogenic amines in the sample ranged from ND (not detected) to 30.6. mg/kg for agmatine, from ND to 390.0. mg/kg for cadaverine, from ND to 19.8. mg/kg for dopamine, from ND to 70.1. mg/kg for histamine, from ND to 17.8. mg/kg for noradrenaline, from ND to 29.7. mg/kg for 2-phenylethylamine, from ND to 43.0. mg/kg for putrescine, from ND to 11.9. mg/kg for serotonin, from ND to 9.5. mg/kg for spermidine, from ND to 13.5. mg/kg for spermine, from ND to 12.8. mg/kg for tryptamine, and from ND to 67.7. mg/kg for tyramine. Anchovy samples showed the high levels of histamine from 15.2 to 70.1. mg/kg, putrescine from 9.1 to 43.0. mg/kg, cadaverine from 152.2 to 90.0. mg/kg, and tyramine from 27.1 to 67.7. mg/kg. Agmatine was found at 30.6. mg/kg in cuttlefish. In the others fish samples agmatine detection levels were in the range from ND to 27.2. mg/kg. Spermidine and dopamine were detected about more than 85% samples in the range from ND to 19.3. mg/kg. Most of fish product samples showed less than 20. mg/kg of each biogenic amine. The maximum histamine and tyramine detection levels were respectively less than those of the regulation and recommendation. © 2010 Elsevier Ltd. Source


Won S.Y.,Busan Regional Agency | Lee C.H.,Busan Regional Agency | Chang H.S.,Busan Regional Agency | Kim S.O.,Busan Regional Agency | And 2 more authors.
Food Control | Year: 2011

The main aim of this study is to analyze both domestic and imported marine products in Korea for 14 sulfonamide antimicrobials. Monitoring samples included flatfish, jacopever, sea bream, common eel, blue crab, shrimp, and abalone. In analyzing step, the residues of 14 sulfonamides (SAs) were determined by high-performance liquid chromatography (HPLC) with photodiode array detector. And in confirmatory step, ultra-performance liquid chromatography-tandem mass spectroscopy (UPLC-MS/MS) was used for unequivocal identification of target compounds.No sulfonamide antimicrobials were found in more than 99% of the samples analyzed in this study. The monitoring results revealed that sulfadiazine was detected in two samples (flatfish and jacopever) below the maximum residue limit (MRL), 100 μg/kg as the sum of 14 sulfonamides. Of samples, one common eel containing sulfamethoxazole above the legal residue limit was found, and the detected concentration was 5104 μg/kg. © 2011. Source

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