The exhausted olive pomace (EOP) is the main residue generated year-round after the extraction of the residual oil contained in the olive pomace. Due to its chemical composition, EOP is an interesting bioresource for the production of bioenergy and high added-value products. Therefore, the purpose of this study was to evaluate the extraction of antioxidants from EOP using sequential ultrasound-assisted extraction (UAE) and maceration with constant stirring. Water and 70% acetone were used as solvents. The total phenolic content was determined by the Folin–Ciocalteu method, the antioxidant capacity was investigated and the phenolic extracts were also characterized.
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