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Antioxidant activity and phenolic content of DRP under different drying temperatures (50, 60, 70, 80, and 90 °C), including freeze-drying as a control. Total phenolic content (TPC, mg GAE·g−1 db), total anthocyanin content (TAC, mg C3G·g−1 db), and DPPH and ABTS activities (mg AAE·g−1 db). Significant differences among treatments (p < 0.05) are indicated by different letters (a–d) above the bars.
