Table 3.
Total phenol content, total flavonoid content, and antioxidant activity.
| Sample | TPC (GAE) 1 | TFC (QE) 2 | TEAC 3 |
|---|---|---|---|
| P1 | 15.51 ± 0.01 c,d | 0.27 ± 0.01 d | 0.06 ± 0.02 b |
| P2 | 16.15 ± 0.02 c,d | 0.30 ± 0.01 d | 0.07 ± 0.01 b,d |
| P3 | 13.24 ± 0.01 d | 0.20 ± 0.02 d | 0.04 ± 0.02 d |
| P4 | 14.46 ± 0.01 d | 0.26 ± 0.01 d | 0.05 ± 0.01 b |
| P5 | 10.77 ± 0.02 d | 0.19 ± 0.01 d | 0.03 ± 0.01 a,d |
1 TPC expressed as mg gallic acid/g BP; 2 TFC expressed as mg quercetin/g BP; and 3 TEAC expressed as mmol Trolox/g BP. We compared differences between the resulting TPC, TFC, and antioxidant assays of all BPEs using one-way ANOVA and Tukey’s multiple comparisons tests. a, b, c and d letters indicate significant differences between samples (a p < 0.05; b p < 0.007; c p = 0.0001; d p < 0.0001).