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Effect of solid/liquid ratio on the phenolic contents and antioxidant activity of blueberry pomace (A) water extracts and (B) 50% ethanolic extracts from ultrasound-assisted extraction (40 °C/60 min). TPC, TFC, TAC: total phenolic, flavonoid and anthocyanin contents, respectively; DPPH: antioxidant activity by DPPH assay. Means (n = 3 replicates) ± SD. Different letters indicate significant effect (p ≤ 0.05).
