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2D-PCA plots for the pomegranate extract classification based on the experimental extraction yields (EY), total phenolic compounds (TPC), total flavonoids (TF), and antioxidant activity (AA assessed in terms of IC50) according to the following: (a) the type of by-product (peels or seeds), (b) the cultivar (Acco, Big Full, and Wonderful), (c) the type of extraction solvent (EtOH: 0%, 25%, 50%, 75%), and (d) the by-product and the cultivar simultaneously.
