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Assessment of OC taste masking in EF-2. (A) alpha MOS e-tongue generated taste map based on principal component analysis (PCA) of oleocanthal formulations. X1 = artificial saliva without enzyme; X2 = artificial saliva + plain non-formulated OC, X3 = EF-2; X4 = EF-2 placebo without OC; (B) distance between samples X1–X4; (C) animal preference test. Percentage of animal preference index of plain non-formulated OC, EF-2 formulation, and its placebo in female and male Swiss albino mice.
