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Residual Characteristics and Processing Factors of Difenoconazole in Fresh Ginseng and Processed Ginseng Products

인삼 및 가공품 중 difenoconazole의 잔류특성 및 가공계수

  • Noh, Hyun-Ho (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environmental Sciences, Chungbuk National University) ;
  • Lee, Kwang-Hun (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environmental Sciences, Chungbuk National University) ;
  • Lee, Jae-Yun (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environmental Sciences, Chungbuk National University) ;
  • Lee, Eun-Young (Dongbu Hannong Corp.) ;
  • Park, Young-Soon (International Ginseng and Herb Research Institute) ;
  • Park, Hyo-Kyoung (Environmental Toxicology Division, Toxicological Research Center, Hoseo University) ;
  • Oh, Jae-Ho (National Institute of Food and Drug Safety Evaluation) ;
  • Im, Moo-Hyeog (Korea Food and Drug Administration) ;
  • Lee, Yong-Jae (Korea Ginseng Corp.) ;
  • Baeg, In-Ho (Korea Ginseng Corp.) ;
  • Kyung, Kee-Sung (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environmental Sciences, Chungbuk National University)
  • 노현호 (충북대학교 농업생명환경대학 환경생명화학과) ;
  • 이광헌 (충북대학교 농업생명환경대학 환경생명화학과) ;
  • 이재윤 (충북대학교 농업생명환경대학 환경생명화학과) ;
  • 이은영 ((주)동부한농) ;
  • 박영순 ((재)금산국제약초연구소) ;
  • 박효경 (호서대학교 안전성평가 센터) ;
  • 오재호 (식품의약품안전평가원) ;
  • 임무혁 (식품의약품안전청) ;
  • 이용재 ((주)한국인삼공사) ;
  • 백인호 ((주)한국인삼공사) ;
  • 경기성 (충북대학교 농업생명환경대학 환경생명화학과)
  • Received : 2012.03.02
  • Accepted : 2012.03.22
  • Published : 2012.03.31

Abstract

This study was carried out to elucidate the residual characteristics and calculate processing factors of difenoconazole in ginseng and its processed products, such as dried ginseng, red ginseng and their water and alcohol extracts. The pesticide was sprayed onto the ginseng according to its pre-harvest intervals in 2009 (four-year-old ginseng) and 2010 (five-year-old ginseng). Harvested ginseng was processed to dried ginseng, red ginseng and their extracts according to the commercially well-qualified conventional methods provided by the Korea Ginseng Corporation. Limit of detection (LOD) and limit of quantitation (LOQ) of difenoconazole in fresh ginseng were 0.001 and 0.003 mg/kg, respectively. In case of processed ginseng products, their levels were 0.002 and 0.007 mg/kg, respectively. Concentration of difenoconazole in both fresh ginseng and its processed products increased with the experimental period. Processing factors, calculated as a ratio of difenoconazole concentration in processed products to fresh ginseng were found to be 1.71 to 2.17 and 1.62 to 2.03 in case of dried and red ginseng, respectively, while those for their extracts ranged from 1.76 to 2.98. In case of five-year-old dried ginseng and red ginseng as well as their extracts, the ranges of processing factor of difenoconazole were found to be 2.9 to 3.1, 1.9 to 2.2 and 2.4 to 4.7, respectively.

Keywords

ginseng;difenoconazole;pesticide residue;processing factor

Acknowledgement

Supported by : 식품의약품안전청

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