Effects of different cleaning treatments on heavy metal removal of Panax notoginseng (Burk) F. H. Chen

文献类型： 外文期刊

第一作者： Liu Dahui

作者： Liu Dahui;Xu Na;Cui Xiuming;Yang Ye;Liu Dahui;Xu Na;Wang Li;Zhang Zhihui;Wang Jiajin;Guo Lanping;Xu Na;Cui Xiuming;Yang Ye

作者机构：

关键词： heavy metal;cleaning treatments;Chinese herb medical;Panax notoginseng (Burk) F. H. Chen

期刊名称：FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT （ 影响因子：3.057； 五年影响因子：2.96 ）

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收录情况： SCI

摘要： The quality and safety of Panax notoginseng products has become a focus of concern in recent years. Contamination with heavy metals is one of the important factors as to P. notoginseng safety. Cleaning treatments can remove dust, soil, impurities or even heavy metals and pesticide residues on agricultural products. But effects of cleaning treatments on the heavy metal content of P. notoginseng roots have still not been studied. In order to elucidate this issue, the effects of five different cleaning treatments (CK, no treatment; T1, warm water (50 degrees C) washing; T2, tap water (10 degrees C) washing; T3, drying followed by polishing; and T4, drying followed by tap water (10 degrees C) washing) on P. notoginseng roots' heavy metal (Cu, Pb, Cd, As and Hg) contents were studied. The results showed that heavy metal (all five) content in the three parts all followed the order of hair root > rhizome > root tuber under the same treatment. Heavy metal removals were in the order of Hg > As > Pb > Cu > Cd. Removal efficiencies of the four treatments were in the order of T2 > T1 > T3 > T4. Treatments (T1-T4) could decrease the contents of heavy metal in P. notoginseng root significantly. Compared with the requirements of WM/T2-2004, P. notoginseng roots' heavy metal contents of Cu, Pb, As and Hg were safe under treatments T1 and T2. In conclusion, the cleaning process after production was necessary and could reduce the content of heavy metals significantly. Fresh P. notoginseng root washed with warm water (T2) was the most efficient treatment to remove heavy metal and should be applied in production.

分类号： TS2

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