Gyeongin Regional Korea Food and Drug Administration

Incheon, South Korea

Gyeongin Regional Korea Food and Drug Administration

Incheon, South Korea

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Kim H.-Y.,Seoul Regional Korea Food and Drug Administration | Choi H.-J.,Food Drug Administration Korea | Eom J.-Y.,Seoul Regional Korea Food and Drug Administration | Seo E.-C.,Seoul Regional Korea Food and Drug Administration | And 4 more authors.
Korean Journal of Food Science and Technology | Year: 2010

To revise the dithiocarbamates residue analysis method and survey the residues in agricultural products that were treated with these fungicides in Korea, we purchased 20 types of foodstuffs (rice, potato, cabbage, apple etc.) from markets in five major cities. 236 samples of the purchased foodstuffs were then analyzed for the presence of dithiocarbamates by HPLC/UV and HPLC/APCI-MS. The R2, LOD and LOQ in the range of 0.5-107.3 mg/L were as follows: DCC: y=174.34x+18.315, R2=0.9999, 0.01 mg/L, and 0.04 mg/L; EBDC: y=227.38x-14.715, R2=1.0000, 0.01 mg/L and 0.02 mg/L; PBDC: y=38.46x-21.412, R2=0.9999, 0.04 mg/L, and 0.1 mg/L; ETU: y=52.752x-4.4819, R2=0.9-998, 0.02 mg/L and 0.03 mg/L; PTU: y=128.28x+4.4624, R2=0.9998, 0.02 mg/L, and 0.04 mg/L. The levels of DDC, EBDC, PBDC, ETU and PTU in 20 agricultural products fortified to 10.0-107.3 mg/L ranged from 61.7-117.5%, 65.3-110.1%, 61.5-109.6%, 69.3-116.3% and 70.2-97.2%, respectively. Overall, dithiocarbamates were detected in 100 samples and the detection ratio was 42.4%. Among these, only 3 samples (1.3%) of Lycii fructus had residue levels that were above the action limits, while the remaining samples (233 samples) contained levels of dithiocarbamates below the detection limit or below the Korea MRLs (Maximum Residue Limits). © The Korean Society of Food Science and Technology.


Kim H.-Y.,Seoul Regional Korea Food and Drug Administration | Lee J.-S.,Seoul Regional Korea Food and Drug Administration | Cho M.-J.,Seoul Regional Korea Food and Drug Administration | Yang J.-Y.,Seoul Regional Korea Food and Drug Administration | And 5 more authors.
Korean Journal of Food Science and Technology | Year: 2010

Bisphenol A diglycidyl ether (BADGE) and bisphenol F diglycidyl ether (BFDGE) were obtained by a polymerization reaction of epichlorohydrin (ECH) with bisphenol A (BPA) or bisphenol F (BPF). These compounds are commonly used as monomers or additives such as a polymerization stabilizer and a hydrochloric acid scavenger of epoxy resin, polyvinyl chloride (PVC)-containing organosols and polyester lacquers, that are applied to the internal surface of most canned foods to impart chemical resistance. The unreacted BADGE, BFDGE and their reaction products migrating from epoxy resin, PVC-containing organosol and/or polyester lacquer-based food packaging materials into the foods have recently become an issue of great concern because of increased customer demand for safety. This study was conducted to develop a rapid and sensitive simultaneous analysis method based on HPLC/FLD and HPLC/APCI-mass and to evaluate the concentration of BADGE, BFDGE and their metabolites, BADGE·H 2O, BADGE·2H2O, BADGE·HCl, BADGE·2HCl, BADGE·HCl·H2O, BFDGE·H 2O, BFDGE·2H2O, BFDGE·HCl, BFDGE·2HCl and BFDGE·HCl·H22 for 133 canned food samples. The method provided a linearity of 0.9997-0.9999, a limit of detection of 0.01-0.13 μg/mL, a limit of quantitation of 0.03-0.44 μg/mL and a recovery (%) of 85.64-118.18. The number of samples containing BADGE, BFDGE or their metabolites were: 28/133 (21.1%), with levels of 0.400-0.888 mg/kg being observed for aqueous foods (19/133) and 0.093-0.506 mg/kg being observed for oily foods (9/133). © The Korean Society of Food Science and Technology.


Kim H.Y.,Seoul Regional Korea Food and Drug Administration | Chung S.Y.,Seoul Regional Korea Food and Drug Administration | Choi S.H.,Seoul Regional Korea Food and Drug Administration | Lee J.S.,Seoul Regional Korea Food and Drug Administration | And 9 more authors.
Korean Journal of Food Science and Technology | Year: 2010

This study was conducted to monitor residues of 10 veterinary drugs in food products. Various veterinary drugs were examined including enrofloxacin, ciprofloxacin, norfloxacin, oxolinic acid, amoxicillin, ampicillin, oxytetracycline, tetracycline, chlortetracycline, and doxycycline in beef, pork, egg, chicken, eel, flatfish, and rockfish obtained from 6 different regions (Seoul, Incheon, Daejeon, Gwangju, Daegu, Busan). Residues were detected in 21 (6.5%) samples out of 321 samples. In particular, 2 (1.0%) livestock samples had detected residues among 203 products, and 19 (16.1%) aquaculture samples had residues detected among 118 products. The most frequently detected drug residues in aquaculture products were oxytetracycline and amoxicillin, but the levels were mostly below the MRL (Maximum Residue Limit). In only one flatfish sample, amoxicillin was found at a level higher than the MRL (0.05 mg/kg). In livestock products, residues of most veterinary drugs were not detected. But enrofloxacin was detected in 2 chicken (Korean name: Ogolgae) samples at a higher level than the MRL (0.1 mg/kg as the sum of ciprofloxacin). © The Korean Society of Food Science and Technology.


Sung I.K.,Gyeongin Regional Korea Food and Drug Administration | Park S.J.,Seoul Regional Korea Food and Drug Administration | Kang K.,Gyeongin Regional Korea Food and Drug Administration | Kim M.Y.,Jeju National University | Cho S.,Seoul National University
Korean Journal for Food Science of Animal Resources | Year: 2015

β-agonists are anabolic compounds that promote fat loss and muscle gain, and their administration to livestock may provide economic benefits by increasing growth rate and feed efficiency. For these reasons, β-agonists are also commonly added to livestock feed as growth promoters. This can introduce a significant risk of secondary human poisoning through intake of contaminated meat. A new method for the simultaneous determination of three β-agonists (clenbuterol, ractopamine, and zilpaterol) was developed in this study and applied to various meat samples. The limits of quantification, derived through a validation test following Codex guidelines, were 0.2 μg/kg for clenbuterol and zilpaterol, and 0.4 μg/kg for ractopamine. The average recoveries for clenbuterol, ractopamine, and zilpaterol ranged from 109.1% to 118.3%, 95.3% to 109.0%, and 94.1% to 120.0%, respectively. The recovery and coefficient of variation (CV) values fell within the acceptable range according to the Codex guidelines. This method reduced the analysis time without decreasing detection efficiency by modifying the pretreatment steps. This method could be utilized to manage the safety of imported meat products from countries where zilpaterol use is still permitted, thereby improving public health and preventing β-agonist poisoning due to secondary contamination.


Hwang T.,Gyeongin Regional Korea Food and Drug Administration | Ahn T.,Gyeongin Regional Korea Food and Drug Administration | Kim E.J.,Gyeongin Regional Korea Food and Drug Administration | Lee J.A.,Gyeongin Regional Korea Food and Drug Administration | And 3 more authors.
Korean Journal of Food Science and Technology | Year: 2011

This study was conducted to examine the contents of lead (Pb), cadmium (Cd), arsenic (As), and mercury (Hg) in meat and meat products in Korea. The contents of Pb, Cd, As, and Hg in 466 samples of beef, pork, chicken, duck, ham, and sausage were measured using inductively coupled plasma mass spectrometry or a mercury analyzer. Wet ashing and microwave method were compared, and the recovery and reproducibility of the microwave method were better than those of wet ashing for meat and meat products. The recovery of the microwave method was 98.1% for Pb, 104.6% for Cd, and 103.4% for As, respectively. The best result was obtained through digestion using an acid mixture (HN0 3/H 2O 2, 6:2). Hg content was measured using a mercury analyzer. As a result, the contents of Hg and Cd in samples were lower than those of Pb and As. The average contents of Pb were 0.009 mg/kg in beef, 0.010 mg/kg in pork, 0.006 mg/kg in chicken, 0.007 mg/kg in duck, 0.005 mg/kg in ham, and 0.009 mg/kg in sausage. The average Cd contents were 0.0004 mg/kg in beef, 0.0004 mg/kg in pork, 0.0005 mg/kg in chicken, 0.0012 mg/kg in duck, 0.0015 mg/kg in ham, and 0.0019 mg/kg in sausage. The average As contents were 0.016 mg/kg in beef, 0.004 mg/kg in pork, 0.021 mg/kg in chicken, 0.010mg/kg in duck, 0.014 mg/kg in ham, and 0.018 mg/kg in sausage. The average Hg contents were 0.713 μg/kg in beef, 0.902 μg/kg in pork, 0.710 μg/kg in chicken, 0.796 μg/kg in duck, 1.141 μg/kg in ham, and 1.052 μg/kg in sausage. Based on the results of the National Health and Nutrition Survey 2005, the levels of dietary exposure to heavy metal contaminants in meat and meat products were compared with the provisional tolerable weekly intake(PTWI) established by the Joint FAO/WHO Expert Committee on Food Additives. The average dietary exposure of the general population from meat and meat products was 0.03-0.2% of PTWI for Pb, Cd, As, and Hg, which indicates a safe level for public health at present. © The Korean Society of Food Science and Technology.


Lee H.,Gyeongin Regional Korea Food and Drug Administration | Lee J.,Gyeongin Regional Korea Food and Drug Administration | Kim J.,Gyeongin Regional Korea Food and Drug Administration | Oh J.,Gyeongin Regional Korea Food and Drug Administration | And 2 more authors.
Korean Journal of Food Science and Technology | Year: 2011

This study was conducted to monitor the concentrations of 24 anti-impotence drugs and their analogues in various foods and dietary supplements, with the aim of ensuring the safety of the foods and supplements. The measurements were done in 226 samples using high performance liquid chromatography/photodiode array detector (HPLC/ PDA) and liquid chromatography-electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS). Five male sexual function enhancing products have been detected as follows: acethylvardenafil (21,476 mg/kg; 15 mg/capsule from one sample), sildenafil (52,778 mg/kg, 29 mg/capsule in one sample; 71,535 mg/kg, 48 mg/capsule in one sample), and tadalafil (9,772-55,545 mg/kg, 6-33 mg/capsule in four samples). A sustainable monitoring of anti-impotence drugs and their analogues in various foods and dietary supplement is recommended. © The Korean Society of Food Science and Technology.


Kim H.Y.,Seoul Regional Korea Food and Drug Administration | Choi S.H.,Seoul Regional Korea Food and Drug Administration | Chung S.Y.,Seoul Regional Korea Food and Drug Administration | Choi H.J.,Seoul Regional Korea Food and Drug Administration | And 9 more authors.
Korean Journal of Food Science and Technology | Year: 2011

The purpose of this study was to develop a methodology to detect spinosad which are difficult to analyze by multi-component simultaneous analysis of pesticide residues. We monitored spinosad due to the paucity of related information. The spinosad was determined using HPLC with UV detector at 250 nm. Correlation coefficient (r2) for standard curve of spinosad A and D at standard concentration of 0.1-5.0 mg/kg were 0.999, respectively. Limit of quantitation (LOQ) of HPLC analysis was 0.005 mg/kg while limit of detection (LOD) was 0.001 mg/kg. Recovery experiments were conducted on five representative agricultural products to validate the analytical method. The recovery of proposed methods ranged from 74.9% to 104.0% and relative standard deviations were less than 10%. Spinosad residues were investigated in 16 commodities collected from 22 provinces. In this study, residues on all samples were not detected. © The Korean Society of Food Science and Technology.

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