Monitoring Ochratoxin A in Coffee and Fruit Products in Korea
2010
Park, J.E., Gyeongin Regional Korea Food and Drug Administration, Incheon, Republic of Korea | Heo, S., Gyeongin Regional Korea Food and Drug Administration, Incheon, Republic of Korea | Lee, M.S., Gyeongin Regional Korea Food and Drug Administration, Incheon, Republic of Korea | Kim, E.J., Gyeongin Regional Korea Food and Drug Administration, Incheon, Republic of Korea | Park, J.S., Gyeongin Regional Korea Food and Drug Administration, Incheon, Republic of Korea | Oh, J.H., Gyeongin Regional Korea Food and Drug Administration, Incheon, Republic of Korea | Jang, Y.M., Gyeongin Regional Korea Food and Drug Administration, Incheon, Republic of Korea | Kim, M.H., Gyeongin Regional Korea Food and Drug Administration, Incheon, Republic of Korea
This research was conducted to evaluate the occurrence of ochratoxin A (OTA) in coffee and fruit products in Korea. A total of 388 coffee and fruit product samples were collected from retail or outlet markets; 177 samples were coffee and 211 were fruits or their products. Analytical methods including AOAC and Comite Europeen de Normalisation (CEN) were selected and modified by method validation to detect and quantify the OTA in samples. All samples were analyzed by liquid chromatography with fluorescence detection. OTA was detected in 3.9% of 177 kinds of coffee and 0% of 211 kinds of fruit products. The levels of OTA were 0.7-4.6 ㎍/kg in green coffee, 0.3-4.8 ㎍/kg in roasted coffee, 1.4 ㎍/kg in mixed coffee, and 0.4-0.6 ㎍/kg in instant coffee. However, OTA was not detected in liquid coffee, dried fruits, or grape juice. OTA levels of all samples detected were less than the European Union legislation of 5.0 ㎍/kg in coffee, 10.0 ㎍/kg in raisins and 2.0 ㎍/kg in grape juice. Therefore, the risk of OTA in coffee and fruit products in Korea is relatively low at safe levels.
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