Patent ID: 7943184

Claim:
A process for preparing an extract from ivy leaves having as active ingredients hederacoside C and α-hederin, with the steps of: a) providing a first, α-hederin-rich extract, by treating ivy leaves to convert the hederacoside C contained in said ivy leaves into α-hederin, followed by an extraction to obtain an αhederin extract having at least 3% by weight α- hederin; b) providing a second, hederacoside C-rich storage-stable extract, having at least 5% by weight hederacoside C, by treating comminuted ivy leaves with superheated steam, followed by an extraction resulting in said second, hederacoside C-rich storage-stable extract; and c) blending said first and said second extract to give an extract which has an adjusted hederacoside C content and an adjusted αhederin content.