Figure 2.

Chemical characterization of pomegranate XAD-7 extract and its separated fractions including the anthocyanin fraction (AF), the copigment fraction (CF), and the polymeric fraction (PF). Shown is the mean ± SD (standard deviation) of at least three independent experiments. (A) Composition of pomegranate XAD-7 extract. (B) Total phenolic content (TPC) of pomegranate juice, its XAD-7 extract, anthocyanin, copigment and polymeric fraction, and the recombined fractions (Recomb.). Statistical analysis was performed using one-way ANOVA followed by Tukey’s multiple comparison test. a: significantly different to juice with p < 0.05; b: significantly different to AF with p < 0.05. HPLC chromatogram of the anthocyanin fraction (C) and copigment fraction (D). Peak identification is given in Table 1. Intens.: Signal intensity.