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http://dx.doi.org/10.7585/kjps.2013.17.4.237

Removal of Pesticide Residues in Field-sprayed Leafy Vegetables by Different Washing Method  

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)
Publication Information
The Korean Journal of Pesticide Science / v.17, no.4, 2013 , pp. 237-243 More about this Journal
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.
Keywords
Pesticide residue; Leafy vegetable; Washing; Reduction;
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Times Cited By KSCI : 7  (Citation Analysis)
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