What is "hodulcine"

Hodulcine (or hoduloside) are glycosides ( dammarane-type triterpenes) which are isolated from the leaves of Hovenia dulcis Thunb. ( Rhamnaceae) also known as Japanese Raisin Tree.
Several glycosides homologue have been found in this plant and although hoduloside 1 exhibits the highest anti-sweet activity, it is less potent than gymnemic acid 1.