[Steroidal Glycoside Constituents from Solanum cumingii].

Objective: To investigate the steroidal glycoside constituents of Solanum cumingii.

Methods: The compounds were isolated by silica gel, Sephadex LH-20, RP-C18 column and Pre-HPLC chromatography. Their structures were identified by ESI-MS and NMR.

Simultaneous quantitation of three major triterpenoid glycosides in Centella asiatica extracts by high performance liquid chromatography with evaporative light scattering detection.

A high-performance liquid chromatography method with evaporative light scattering detection was established for simultaneous determination of three major triterpenoid glycosides, i.e. asiaticoside, madecassoside and asiaticoside-B, in Centella asiatica extracts.