Chemical Safety Division, Department of Agro-Food Safety and Crop Protection, National Institute of Agricultural Sciences, Rural Development Administration, Wanju 55365, Korea.
Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environment Science, Chungbuk National University, Cheongju, Chungbuk 28644, Korea.
Int J Environ Res Public Health. 2021 Jan 8;18(2):471. doi: 10.3390/ijerph18020471.
This study determined residual buprofezin levels in fresh ginseng and evaluated their changes during processing. Supervised field trials were conducted at Yeongju, Geumsan, and Goesan, Korea. Buprofezin 12.5% EC was applied to 5-y ginseng in accordance with the Korean good agriculture practice (GAP). Samples were collected at 0, 7, 14, 21, and 30 d after the final application. On day 14 (GAP-equivalent preharvest date), the ginseng was processed to obtain dried and red ginseng. The average buprofezin concentrations on day 0 were 0.076 (Yeongju), 0.055 (Geumsan), and 0.078 mg kg (Goesan). Residual concentrations increased as ginseng was processed into dried and red ginseng. Residue levels in dried ginseng manufactured by hot air drying were higher than in red ginseng obtained by steaming, hot air, and sunlight drying. However, the absolute amount of pesticides decreased by approximately 20-30% as a result of calculating the reduction factor considering the dry yield and moisture content. Therefore, the residual concentration in processed products may vary depending on the processing method, and it is deemed necessary to consider the processing yield and moisture content when evaluating the safety of residual pesticides in dried processed products.
本研究旨在测定鲜人参中残留的吡丙醚含量，并评估其在加工过程中的变化。在韩国荣州、军山和高森进行了有监督的田间试验。按照韩国良好农业规范（GAP），将 12.5%吡丙醚 EC 施用于 5 年生人参。最后一次施药后 0、7、14、21 和 30 d 采集样品。在第 14 天（相当于 GAP 收获前日期），将人参加工制成干参和红参。第 0 天的吡丙醚平均浓度分别为 0.076（荣州）、0.055（军山）和 0.078 mg/kg（高森）。随着人参加工成干参和红参，残留浓度增加。热空气干燥制成的干参中的残留水平高于蒸汽、热空气和阳光干燥得到的红参。然而，通过考虑干出率和水分含量计算减少因子，农药的绝对量减少了约 20-30%。因此，加工产品中的残留浓度可能因加工方法而异，在评估干燥加工产品中残留农药的安全性时，需要考虑加工出率和水分含量。
