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The DPPH radical scavenging activity (a) and total polyphenol content (b) of unfermented Rhizoma Atractylodis Macrocephalae (RAM) or fermented RAM-1 (FRAM-1) and fermented RAM-2 (FRAM-2) formulations. The detailed treatment regimen and experimental conditions are described in Section 2. The data are expressed as the mean ± SD, n = 3. aStatistically significant difference compared to RAM (P < 0.05).
