Enrichment process of paeoniflorin from Kunyining Granules with macroreticular resin / 中成药

ABSTRACT

AIM: To study the optimal condition and parameters for the enrichment process of paeoniflorin in Kunyining Granules (Radix Paeoniae Rubra, etc.) with macroreticular resin. METHODS: With the enrichment degree of paeoniflorin in Kunyining Granules as an index, the optimal conditions of the enrichment process were investigated. RESULTS: The optimal condition showed that the aqueous extract was taken into the macroporous resin column, and kept for 30 min, then the resin was washed by water to get rid of impurity and then we used six times as much 50% ethanol as aqueous extract to elute paeoniflorin. CONCLUSION: The process is feasible to enrich paeoniflorin from Kunyining Granules.