Determination of residual pesticides in bean sprout.
1989
Kim J.H. | Kim M.H.
This study was performed to investigate the content of residual pesticides in bean sprouts which are the very important vegetables to supply protein for traditional Korean dishes. Experimental subjects included 541 cases of bean sprouts and 168 cases of germinating beans collected in the Seoul area from January in 1987 to February in 1988. In residual pesticides of subjects, topsin-M, vitavax and thiram were determined by high pressure liquid chromatography and captan was determined by gas chromatography. The detection rates of residual pesticides in the subjects were 19.4 % in bean sprouts and 26.2 % in germinating beans. The most common used pesticide in bean sprouts was topsin-M and detection rate was 16.2 %. Captan and vitavax were also detected in about 3.5 %, 2.8 % of the experimental subjects respectively. But thiram was not detected in any samples. The mean value of topsin-M content was 21.32 +- 4.82 ppm and 1.68 +- 0.14 ppm in bean sprouts. The mean value of captan was 7.70 +- 2.13 ppm and 0.42 +- 0.02 ppm in germinating beans and bean sprouts, respectively.
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