On the Processing and Reduction Factors of Several Pesticides with Welsh Onion

건조 대파의 잔류농약 가공 및 감소계수 연구

  • Park, So-Yeon (Department of Bio Environmental Chemistry, Institute of Agricultural Sciences, Chungnam National University) ;
  • Kang, Hye-Rim (Department of Bio Environmental Chemistry, Institute of Agricultural Sciences, Chungnam National University) ;
  • Ko, Kang-Young (CJ cheiljedang food safety center) ;
  • Gil, Keun-Hwan (National Academy of Agricultural Science, Rural Development Administration) ;
  • Im, Moo-Hyeog (Food Safety Bureau, KFDA) ;
  • Lee, Kyu-Seung (Department of Bio Environmental Chemistry, Institute of Agricultural Sciences, Chungnam National University)
  • 박소연 (충남대학교 생물환경화학과) ;
  • 강혜림 (충남대학교 생물환경화학과) ;
  • 고광용 (CJ 제일제당 식품안전 센터) ;
  • 길근환 (농촌진흥청 국립농업과학원) ;
  • 임무혁 (식품의약품안전청 식품안전국) ;
  • 이규승 (충남대학교 생물환경화학과)
  • Published : 2009.12.31

Abstract

In order to calculate the processing and reduction factor between fresh and dry Welsh onion which was widely used as a dried agricultural ingredient of food in Korea. 7 pesticides such as pyridalyl, kresoxim-methyl, spinosad, flufenoxuron, difenoconazole, metconazole, and tebufenozide were tested. After 2 sites field trial conducted and measured water contents by drying at $60^{\circ}C$ and analyzed the pesticide residue. Water contents of fresh and dried Welsh onion are 89.2 and 10.2% respectively. Averages of processing factor showed 7.24 of pyridalyl, 2.85 of kresoxim-methyl, 7.43 of spinosad, 3.17 of flufenoxuron, 4.38 of difenoconazole, 2.40 of metconazole and 8.13 of tebufenozide into 2 field samples. Averages of Reduction factor showed 0.87 of pyridalyl, 0.35 of kresoxim-methyl, 0.88 of spinosad, 0.38 of flufenoxuron, 0.52 of difenoconazole, 0.29 of metconazole and 0.98 of tebufenozide. Residual amounts of pesticides in/on fresh Welsh onion reduced during drying process.

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