from hexanic extract of aerial parts of peucedanum ruthenicum m. bieb (apiaceae) collected from mazandaran province of iran, four triterpenoids namely taraxasterol, y-taraxasterol, poriferasterol and b-sitosterol have been isolated by column chromatography, thin layer chromatography, and crystallization. their structures were elucidated by spectroscopic methods (uv, ir, ms, 1h and 13c-nmr).

We established a novel screening method to identify antibacterial compounds and used the screen various triterpenoids, which are difficult assay using existing methods. The involves comparison of shape bacterial growth curves based on changes in culture turbidity. Growth were grouped multiple classification analysis. tested belonged different chemical group than controls. Six four triterpenoids...

The quality difference of six varieties Ganoderma lucidum with different origins was investigated in this study by comparing the contents of ganoderic acid A and B, polysaccharide, and triterpenoids. The contents of ganoderic acid A and B in G. lucidum were analyzed by ultra performance liquid chromatography (UPLC). There was higher content of ganoderic acid A in G. lucidum of Dabie Mountain an...

BACKGROUND Panax notoginseng has been used as a general tonic agent to invigorate human body for millennia in China and continued to be used until present. METHODS Some chromatographic methods were performed to isolate pure triterpenoids, and their structures were determined by nuclear magnetic resonance (NMR) experiments. Anti-diabetes activities of isolated compounds were evaluated through ...