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KMID : 0380620070390050575
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Korean Journal of Food Science and Technology
2007 Volume.39 No. 5 p.575 ~ p.579
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Reduction Rate of Azoxystrobin, Fenhexamid and Cyprodinil during Ginseng Processing
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Im Moo-Hyeog
Kwon Kwang-Il
Park Kun-Sang
Lee Kyung-Jin
Chang Moon-Ik
Yun Won-Kap
Choi Woo-Jong
Yoo Kwang-Soo
Hong Moo-Ki
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Abstract
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This study was performed to acquire scientific data for establishing the maximum residue limits (MRLs) of pesticides in Korean red ginseng and its extract. Pesticides (azoxystrobin, fenhexamid, cyprodinil) were applied to a cultivated field of ginseng, and the fresh ginseng was harvested and processed to make Korean red ginseng and its extract. The reduction rates of the residue pesticides were calculated by determining the pesticide contents in each stage of ginseng processing. The residue levels in fresh ginseng were 0.12ppm for azoxystrobin, 0.19ppm for fenhexamid, and 1.78ppm for cyprodinil. The residue levels in Korean red ginseng were 0.24, 0.54, and 1.49ppm, and in the extract 0.81, 1.93, and 3.66ppm for azoxystrobin, fenhexamid, and cyprodinil, respectively. The steaming and processing of fresh ginseng increased azoxystrobin and fenhexamid residues, but cyprodinil was reduced. The reduction rates (dry basis) of azoxystrobin, fenhexamid, and cyprodinil were 0.66, 0.94, and 0.28 for Korean red ginseng, and 3.25, 4.94, and 1.01 for the extract, respectively.
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KEYWORD
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Korean red ginseng, Korean red ginseng extract, maximum residue Limits, MRLs, reduction rate of pesticides
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