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[Objective]The content of plumbagin in Plumbago zeylanica L.flowers and fruits were determined,to provide the experimental basis for the clinical application and development of Plumbago zeylanica L.flowers and fruits.[Methods]The medicinal powders were immersed in cold methanol(50 mL)for 24 hours,and then extracted for 50min by ultrasound,to determine the content of plumbagin in Plumbago zeylanica L.flowers and fruits by HPLC.[Results]The content of plumbagin in Plumbago zeylanica L.flowers and fruits were respectively0.005 9%and 0.009 5%.[Conclusion]Plumbago zeylanica L.flowers and fruits contained plumbagin,which is the active ingredient,having the value of development and utilization.
[Objective] The content of plumbagin in Plumbago zeylanica L. flowers and fruits were determined, to provide the experimental basis for the clinical application and development of Plumbago zeylanica L. flowers and fruits. [Methods] The medicinal powders were immersed in cold methanol ( 50 mL) for 24 hours, and then extracted for 50 minutes by ultrasound, to determine the content of plumbagin in Plumbago zeylanica L. flowers and fruits by HPLC. [Results] The content of plumbagin in Plumbago zeylanica L. flowers and fruits were respectively0. 005 9% and 0.009 5%. [Conclusion] Plumbago zeylanica L.flowers and fruits contained plumbagin, which is the active ingredient, having the value of development and utilization.