Lin-hai Qu1, Ming Zheng, Yi-jia Lou. 1. Department of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310031, China.
Abstract
OBJECTIVE: To optimize the conditions for the extraction of panax notogingseng saponins (PNS). METHODS: After selected extraction solvent and suitable particle, we employed orthogonal experimental design to examine the conditions for the extraction by determination of PNS. RESULTS: Significant effect was observed only in extraction times. CONCLUSION: The optimum condition for extraction of PNS was to extract panax notogingseng (Burk.) F. H. Chen with 10 times 70% ethanol for 1.5 hours for 3 times.
OBJECTIVE: To optimize the conditions for the extraction of panax notogingseng saponins (PNS). METHODS: After selected extraction solvent and suitable particle, we employed orthogonal experimental design to examine the conditions for the extraction by determination of PNS. RESULTS: Significant effect was observed only in extraction times. CONCLUSION: The optimum condition for extraction of PNS was to extract panax notogingseng (Burk.) F. H. Chen with 10 times 70% ethanol for 1.5 hours for 3 times.