This dissertation consists of six chapters focusing on the study of extraction method, physical and chemical characters and biological activities of forsythiaside, which is the effective ingredient of Forsythia suspensa(Thunb)Vahl.. The contents are as follows:
1. The research developments of Forsythia suspensa(Thunb)Vahl., inhibitors of elastase and natural antioxidants were reviewed.
2. Forsythiaside has been obtained by using Macro-reticular resin D101 and low pressure liquid chro...