Hydrophobic Constituents Extracted from Chaga by Ethylacetate

Abstract

Chaga can be extracted with EtOAc to afford ~0.88% extracted substances, of which ~58% are lipophilic compounds with the remainder being phenolic compounds. Tetracyclic triterpenes, sterols and their esters, sesquiterpenes (azulenes), bicyclic monoterpenes (iridoids), phenolcarboxylic acids, simple phenols, and flavonoids were identified in the extract. Stilbene-type compounds, a phenanthrene derivative, and 9(11)-dihydroergosteryl benzoate were observed in chaga for the first time.