Table 4.
Antioxidant contents of Phellinus baumii extracts depending on extraction conditions

Ethanol conc. (%) TPC1) (GAE g/L) TFC (CE g/L)
pH 4 pH 7 pH 10 pH 4 pH 7 pH 10
0 0.37±0.01aD2) 0.29±0.01cD 0.35±0.00bD 0.25±0.00bD 0.28±0.00aD 0.24±0.00cD
30 1.11±0.01bC 1.08±0.01cC 1.33±0.02aC 1.00±0.00bC 0.93±0.01cC 1.08±0.01aC
60 2.05±0.01bA 2.16±0.01aA 1.78±0.02cA 1.70±0.01bA 1.74±0.01aA 1.49±0.01cB
90 1.18±0.03bB 1.19±0.01bB 1.38±0.02aB 1.28±0.01cB 1.27±0.05bB 1.50±0.01aA
TPC, total phenolic contents; TFC, total flavonoid contents; GAE, gallic acid equivalent; CE, catechin equivalent.
abcdMean±SD (n=3) within each row followed by the same letter are not significantly different (p<0.05); ABCDmean±SD (n=3) within each column followed by the same letter are not significantly different (p<0.05).