Extraction Efficiencies of Organophosphorus Pesticides Spiked in Fish Tissues by Supercritical Carbon Dioxide

초임계 이산화탄소에 의한 어류조직 중 유기인계 농약의 첨가회수율

  • Lim, Sang-Bin (Department of Food Science and Technology, Cheju National University) ;
  • Jwa, Mi-Kyung (Department of Food Science and Technology, Cheju National University)
  • Published : 1998.10.01

Abstract

Fish tissues were spiked with organophosphorus pesticides (OPPs), mixed with a celite as a drying agent, and dynamically extracted with pure $CO_2$ or modified $CO_2$ for 10 min at different extraction temperatures, pressures and $CO_2$ flow rates. Recoveries of OPPs spiked in jacopever increased with the decrease of extraction temperature and pressure, and decreased with the increase of $CO_2$ flow rates. Modified $CO_2$ extractions with 10% methylene chloride showed a slight increase in the recoveries over pure $CO_2$ extraction. Quantity of fish tissues had great effect on their extraction efficiencies. Recoveries of OPPs were $66.7{\sim}86.3%$ for jacopever, $56.2{\sim}79.2%$ for yellow tail, $57.6{\sim}77.8%$ for blanquillo, $84.2{\sim}96.3%$ for sardine, $74.6{\sim}83.6%$ for mackerel. Application of supercritical carbon dioxide extraction offers an attractive alternative to the use of organic solvents for extraction of pesticide residues from fish tissues.

Keywords

supercritical carbon dioxide extraction;organophosphorus pesticides;modifier;fish tissues