Effect of different cleaning processes on saponins’ loss rate and total ash clearance rate of Notoginseng and heavy metal health risk assessment

摘要

Total ash clearance rates and saponins’ loss rates of Panax notoginseng rhizome, root tuber, andrnrootlet all increased with a prolonged washing time and the rising of water temperature. Underrnthe same conditions, the total ash clearance rates of fresh P. notoginseng were significantly higherrnthan those dried. Meanwhile, the saponins’ loss rates were opposite. The highest daily intake ofrnbioavailability heavy metals was rootlet. However, all of that was significantly lower than the recommendedrndaily intake, and both the target hazard quotients and hazard index values were lowerrnthan 1. Conclusion, it is effective to decrease washing time and water temperature in order tornreduce the loss of saponins of P. notoginseng on the premise that ash content of Notoginseng conformsrnto standard of Chinese Pharmacopeias. Safety risk assessments of heavy metals based onrnbioavailability can further reduce the health risk of the heavy metal exposure of Notoginseng.