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KMID : 1160220140420040339
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Mycobiology
2014 Volume.42 No. 4 p.339 ~ p.345
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Incidence and Level of Aflatoxins Contamination in Medicinal Plants in Korea
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Lee Sung-Deuk
Yu In-Sil
Jung Kweon
Kim Yeon-Sun
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Abstract
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During 2011~2013, a total of 729 samples for 19 types of medicinal plant were collected from Seoulyekryungsi inSeoul, Korea, and investigated for the presence of aflatoxins. The samples were analyzed using immunoaffinity column cleanupand high-performance liquid chromatography coupled to a fluorescence detector after post-column derivatization. Aflatoxins werefound in 124 out of the 729 analyzed samples: 65 containing aflatoxin B1 (AFB1), 24 with aflatoxin B2 (AFB2), 15 with aflatoxinG1 (AFG1), and 20 samples with aflatoxin G2 (AFG2). The ranges for positive samples were 0.1~404.7 μg/kg for AFB1, 0.1~10.0 μg/kg for AFB2, 0.1~635.3 μg/kg for AFG1, 0.1~182.5 μg/kg for AFG2, and 0.1~1,043.9 μg/kg for total aflatoxins. Most ofthe medicinal plant samples (721, 98.9%) were below legal limits, but 8 samples exceeded the legal limits of 10 and 15 μg/kgestablished by the Korean standard for AFB1 and total aflatoxins (the sum of AFB1, AFB2, AFG1 and AFG2), respectively.
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KEYWORD
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Aflatoxins, High-performance liquid chromatography, Total aflatoxins
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