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http://dx.doi.org/10.5338/KJEA.2003.22.1.047

Residual Pattern of Procymidone and Bifenthrin in Perilla Leaf During the Period of Cultivation and Storage  

Ko, Kwang-Yong (Dept. of Agriculture Chemistry, Chungnam National University)
Lee, Yong-Jae (Dept. of Agriculture Chemistry, Chungnam National University)
Won, Dong-Jun (Dept. of Agriculture Chemistry, Chungnam National University)
Park, Hye-Jin (Dept. of Agriculture Chemistry, Chungnam National University)
Lee, Kyu-Seung (Dept. of Agriculture Chemistry, Chungnam National University)
Publication Information
Korean Journal of Environmental Agriculture / v.22, no.1, 2003 , pp. 47-52 More about this Journal
Abstract
In order to know residual pattern of pesticides and to predict degradation period until below MRL, we experimented with procymidone and bifenthrin for perilla leaf which were the most detected pesticides by NAQS (National Agriculture-product Quality management Service) survey. In this experiment, we sprayed those pesticides 10 days before harvest and analyzed 0, 1, 2, 3, 5, 7, 10 day samples to establish logical equation and to calculate $DT_{50}$. Also degradation patterns of those samples were compared during storage at 4t and 20t. During cultivating period, procymidone residue amount was changed from 79.52 mg/kg (0 day) to 4.2 mg/kg, $DT_{50}$ was 2.65 days by logical-equation, and bifenthrin residue amount was changed from 5.03 mg/kg (0 day) to 0.17 mg/kg, $DT_{50}$ was 2.24 days. During storage period, $DT_{50}$ of procymidone and bifenthrin at $4^{\circ}C$ was 12.23 days and 10.57 days, and at $20^{\circ}C$ was 6.32 days and 8.2 days, respectively.
Keywords
procymidone; bifenthrin; biological hale-life; pre-harvest interval;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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