Olea europaea leaves are the major byproduct of olive farming. In this study. ultrasound-assisted extraction of flavonoids from olive leaves was optimized using response surface methodology. and the flavonoid compounds and their antioxidant and anticancer activities were investigated by high performance liquid chromatography. https://www.bekindtopets.com/flash-find-Luhta-Henttola-Tops-great-save/