What is Eriocitrin?

Eriocitrin is a flavanone-7-O-glycoside between the flavanone eriodictyol and the disaccharide rutinose. The flavonoid, Eriocitrin, is a flavanone glycoside. It is found at higher levels in lemon than in all other species of citrus. The principal citrus flavanones are invariably combined with various sugars, especially disaccharides.
Eriocitrin (eriodictyol 7-O-β-rutinoside), a flavonoid glycoside, is the key flavonoid in lemon fruit (citrus limon). Eriocitrin is very elusive and is the most soluble of all flavonoids.