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Change of the Concentration of Pesticide Residues in Pepper Powder by Storage Temperature and Storage Period  

Jo, Sung-Ae (Research Institute of Public Health&Environment, Kangnam Agro-marin products Inspection center, Kangnam agricutual products Inspection Team)
Kim, Eun-Hee (Research Institute of Public Health&Environment, Kangnam Agro-marin products Inspection center, Kangnam agricutual products Inspection Team)
Kim, Kyung-Sig (Research Institute of Public Health&Environment, Kangnam Agro-marin products Inspection center, Kangnam agricutual products Inspection Team)
Kim, Jung-Hun (Research Institute of Public Health&Environment, Kangnam Agro-marin products Inspection center, Kangnam agricutual products Inspection Team)
Park, Seog-Gee (Research Institute of Public Health&Environment, Kangnam Agro-marin products Inspection center, Kangnam agricutual products Inspection Team)
Publication Information
The Korean Journal of Pesticide Science / v.13, no.3, 2009 , pp. 127-132 More about this Journal
Abstract
The purpose of this study is to examine changes in the pesticides residues in pepper powder by storage conditions. Analysis of pesticide residues was performed using multiresidue analytical methods and the number of pesticides detected from 60 pepper powders was 7 pesticides such as cypermethrin, fenvalerate, kresoxim-methyl, chlorpyrifos, chlorfenapyr azoxystrobin, tebuconazole. The concentrations of cypermethrin and tebuconazole were exceeded their maximum residue limits (MRLs). The degradation patterns of pesticides at $-5^{\circ}C$ were compared to those at $20^{\circ}C$ and $4^{\circ}C$. Without reference to storage temperature, degradation rates of azoxystrobin and fenvalerate were above 80%. Degradation rate of chlorpyrifos was 47% at storage $4^{\circ}C$, $20^{\circ}C$ and 34% at storage $-5^{\circ}C$. During each storage peroid, the degradation patterns were more lower at $-5^{\circ}C$ than at $20^{\circ}C$ and $4^{\circ}C$.
Keywords
degradation; storage temperature; pesticides; pepper powder;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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