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Graphical representation of the mean quantification ± standard deviation. (A) Total phenolic compounds (determined by the Folin–Ciocalteu method); (B) Total proanthocyanidins (determined using the Bath-Smith method); (C) Tannin specific activity for M and P wines samples. The presented values are the mean of three independent experiments, * Represents statistically different (p < 0.0001). M and P refer to the wine codes.
