Optimization of the Extraction Process and Biological Activities of Triterpenoids of Schisandra sphenanthera from Different Medicinal Parts and Growth Stages

Rehd. et Wils., as a traditional Chinese medicine, has important medicinal value. In the market, the availability of the fruit of mainly relies on wild picking, but many canes and leaves are discarded during wild collection, resulting in a waste of resources. The canes and leaves of contain various bioactive ingredients and can be used as spice, tea, and medicine and so present great utilization opportunities. Therefore, it is helpful to explore the effective components and biological activities of the canes and leaves to utilize fully. In this study, the response surface method with ultrasound was used to extract the total triterpenoids from the canes and leaves of at different stages. The content of total triterpenoids in the leaves at different stages was higher than that in the canes. The total triterpenoids in the canes and leaves had strong antioxidant and antibacterial abilities. At the same time, the antibacterial activity of the total triterpenoids against and was stronger than that against and . This study provides the foundation for the development and utilization of the canes and leaves that would relieve the shortage of fruit resources of .