Purification of an isoflavonoid 7-O-β-apiosyl-glucoside β-glycosidase and its substrates from Dalbergia nigrescens Kurz

A β-glycosidase which hydrolyzes isoflavonoid glycosides, removing β-apiosyl glucose, and two substrates were purified from Dalbergia nigrescens seeds, and the glycoside substrate structures were identified.