Xây dựng phương pháp định lượng và theo dõi độ ổn định của oxostephanin trong thân lá cây củ dòm (Stephania Dielsiana Y. C. Wu) trong thời gian bảo quản

Abstract

Quantitative method of oxostephanin in the stems and leaves of S.dielsiana by UV-Vis photometric method at the maximum absorption wavelength of 414 nm. The method has been validated, the criteria are satisfactory, ensuring that the method can be quantitatively applied to oxostephanin in the stems and leaves.

Quantitative method has been applied to monitor the stability of oxostephanin during storage and preliminary processing. The oxostephanin content changed when drying at different drying temperatures and during different storage times. The results show that the maximum recommended drying temperature is 60oC and the medicinal herbs should be extracted immediately or stored for up to 4 weeks.