Fig. 1. DPPH free radical scavenging activities of ethanol extract from PCE. The total experiment was repeated 5 times, and the electron donating ability was expressed as 100 - [(absorbance of the sample mixed group/absorbance of the unmixed group) × 100]. As a positive control, butylated hydroxyanisole (BHA) was used. The data were expressed as the mean ± SD (n=5).
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