METHOD FOR EXTRACTING, FROM OLIVE LEAF, OLEUROPEIN IN A PHENOLIC FRACTION; FUNCTIONAL FOOD COMPOSITION; AND USE

摘要

The present invention relates to a method for extracting, from olive leaf, a phenolic fraction containing oleuropein, which comprises: heating a mixture of crushed dry olive leaf and a deep eutectic solvent of edible natural sugars and water; and filtering to obtain a precipitate and an aqueous phase, wherein the aqueous phase contains the phenolic fraction with the oleuropein. The invention also relates to a functional food composition with an oleuropein content of 80-85% by weight with respect to the weight of the total phenolic extract, and to the use thereof in the food, cosmetic or pharmaceutical industry.