Removal effect of residual pesticides in red pepper powder by UV irradiation

You-Jung Jung*, Mi-Na Eom, Il-Hyung Jeong, Jong-Sung Son, Kyung-A Kim, Sang-Woon Shin, Sang-Hun Oh, Bong-Real Kim, Kyeng-Suk Chae and Mi-Hye Yoon Gyeonggi Institute of Health Environment Guri Agricultural Products Inspection Center (5301, C dong, Guri Agricultural & Marine Inchang-dong, Guri Si, Gyeonggi-Do)This study was carried out to investigate the degradation of six residual pesticides (ɑ- and β-Endosulfan, Cypermethrin, Fenitrothion, Hexaconazole, EPN) in red pepper powder after ultraviolet (UV) irradiation. The residual ratio of pesticides after 365 nm irradiation which distance is 20 cm and irradiation time is 5 minutes were 73.4, 69.6, 60.8, 92.7, 73.8 and 90.5% in ɑ-Endosulfan, β-Endosulfan, Cypermethrin, Fenitrothion, Hexaconazole and EPN, respectively. The residual ratio of pesticides after 254 nm irradiation which distance is 5 cm and irradiation time is 36 hours were 74.6, 64.5, 71.1, 79.1, 79.4 and 64.7% in ɑ-Endosulfan, β-Endosulfan, Cypermethrin, Fenitrothion, Hexaconazole and EPN, respectively.Key words Residual ratio, UV irradiation, Pesticide, Red pepper powderAbstract