Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Extraction Efficiencies of Organochlorine Pesticides Spiked in Fish Tissues by Supercritical Carbon Dioxide

초임계이산화탄소에 의한 어류조직 중 유기염소계 농약의 추출수율

  • Lim, Sang-Bin (Department of Food Science and Technology, Cheju National University) ;
  • Jwa, Mi-Kyung (Department of Food Science and Technology, Cheju National University) ;
  • Kang, Soon-Bae (Institute of Health and Environment, Cheju-do Provincial Government)
  • Published : 1996.06.30
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Abstract

A simple, fast, inexpensive method hal been developed to extract organochlorine pesticide spiked in fish tissues by supercritical carbon dioxide. Following static supercritical fluid extraction (SFE), pesticides are collected by rapidly depressurizing the carbon dioxide effluent through a 0.79 mm i.d. metering valve into a capped screw-top tube. Percent recovers of standard organochlorine pesticides mixture (SOPM) increased with the decrease of the extraction temperature at 103 bar. Maximum average percent recovery of SOPM was 98% at $40^{\circ}C/172\;bar$ Average recoveries of SOPM spiked in Pacific cod, flatfish and common squid were 85,74,and 83% respectively at $40^{\circ}C/172\;bar$ Application of supercritical carbon dioxide ectraction offers and attractive alternative to the use of organic solvents for extraction of organochlorine pesticides from fish tissues.

초임계유체를 이용하여 간단하고, 신속하고, 저렴하게 식품 중의 잔류농약을 추출, 정제하는 방법을 개발하기 위하여 10종의 유기염소계 농약에 대하여 ppm수준의 농도에서 초임계 이산화탄소를 이용하여 추출 온도 및 압력 등 추출조건을 달리하여 추출수율을 측정하였다. 초임계 이산화탄소 추출에 의한 유기염소계 잔류농약 표준용액의 회수율은 103bar에서 추출온도가 증가할수록 증가하였다. 유기염소계 잔류농약 표준용액의 최대 평균 회수율은 $40^{\circ}C/172\;bar.$에서 98.3%였다. 대구, 넙치, 오징어에 첨가한 유기염소계 농약의 평균 첨가회수율은 $40^{\circ}C/172\;bar.$에서 각각 85.6, 74.6, 83.0%였다.

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