The Korean Journal of Pesticide Science (농약과학회지)

The Korean Society of Pesticide Science (한국농약과학회)
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Removal of Pesticide Residues in Field-sprayed Leafy Vegetables by Different Washing Method

엽채류에 엽면 살포된 농약의 세척 방법에 따른 제거

  • Kwon, Hyeyoung (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Kim, Taek-Kyum (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Hong, Su-Myeong (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Kim, Chan-Sub (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Baeck, Minkyeong (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Kim, Doo-Ho (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration) ;
  • Son, Kyung-Ae (Department of Agro-food Safety, National Academy of Agriculture Science, Rural Development Administration)
  • 권혜영 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 김택겸 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 홍수명 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 김찬섭 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 백민경 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 김두호 (농촌진흥청 국립농업과학원 농산물안전성부) ;
  • 손경애 (농촌진흥청 국립농업과학원 농산물안전성부)
  • Received : 2013.10.25
  • Accepted : 2013.11.18
  • Published : 2013.12.31
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Abstract

Pesticides were sprayed on perilla leaf and leafy lettuce in a greenhouse and the reduction rate of pesticide residues on each vegetable by washing were tested. The reduction rate of pesticide residues by washing for 30 sec~3 min on perilla leaf were 3~63% in tap water, 2~58% in salt water, 6~74% in green tea water, and 8~86% in detergent solution. The detergent solution only showed significant difference in reduction rates compared to the tab water washing. Considering reduction effects of the washing duration, it was showed that the reduction rates were a pattern of inclining as the duration of washing process increased, but there was no significant difference in the reduction rates except the reduction rates between washing in the detergent solution for 1 min and 3 min. Comparing washing in flowing tab water and in stagnant tab water with leafy lettuce, the reduction rate by one time washing were 8~68% in flowing tab water and 7~64% in stagnant tab water. The water and the time used in this experiment were 17.5 L, 2.9 min with flowing tab water and 4 L, 1 min with stagnant tab water. The reduction rate by 3 times washing in stagnant tab water were 16.5~76.6%, and the water and the time used were 12 L, 3 min. Therefore, when the water and the time used to wash vegetables were considered, washing two or three times in stagnant tab water could be more effective than washing one time in flowing tab water.

우리가 주로 생체로 먹는 들깻잎, 상추를 하우스에서 재배하고 안전사용기준을 준수하여 약제를 살포한 후 수확하여 다양한 세척액의 시간별 제거율을 조사하고 가정에서 주로 사용하는 방법인 흐르는 물에 씻는 방법과 물을 받아 씻는 방법의 제거효율을 비교하였다. 들깻잎의 경우 잔류농약의 제거율은 수돗물 3~63%, 소금물 2~58%, 녹차액 6~74%, 세제액 8~86%였다. 세제액만이 수돗물과 유의성 있는 차이를 보였고 다른 세척액은 수돗물과 유의성이 없었다. 세척시간이 증가함에 따라 제거율도 증가하였으나 세제액의 1분 세척과 3분 세척만이 유의한 차이가 있었고 다른 처리들은 세척시간별로 제거율의 유의한 차이가 없었다. 흐르는 물에 씻는 방법과 물을 받아 씻는 방법을 조사한 결과 상추를 흐르는 물에 1회 세척시 8~68%, 물을 받아 세척시 7~64% 농약이 제거되었고 물과 시간은 흐르는 물에 세척시 17.5 L, 2.9분이 소비되었고 물을 받아 세척시 4 L, 1분이 소비되었다. 물을 받아 3회 세척시 16.5~76.6%의 농약이 제거되었으며 물과 시간은 12 L와 3분이 소비되었다. 따라서 물을 받아 세척하는 것이 물과 시간을 절약하면서 제거율을 높일 수 있는 것으로 생각되었다.

Keywords

References

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