Table 1.
Total phenols (mg GA/g DW), ortho-diphenols (mg GA/g DW), and flavonoids (mg CAT/g DW) content and antioxidant activity (mmol Trolox/g DW) of broccoli leaves, stalks, and inflorescences.
| Phenolic Content | Antioxidant Activity | ||||
|---|---|---|---|---|---|
| Broccoli Part | Total Phenols | Ortho-Diphenols | Flavonoids | ABTS | DPPH |
| Leaf | 12.35 ± 1.27 c | 54.54 ± 6.51 b | 8.32 ± 1.25 b | 0.0192 ± 0.0089 c | 0.0269 ± 0.0067 c |
| Stalk | 3.24 ± 0.51 a | 4.34 ± 0.81 a | 0.84 ± 0.19 a | 0.0035 ± 0.0005 a | 0.0061 ± 0.0014 a |
| Inflorescence | 6.65 ± 1.73 b | 7.97 ± 2.17 a | 1.30 ± 0.36 a | 0.0070 ± 0.0010 b | 0.0123 ± 0.0025 b |
a, b, c Means with different letters on the same column are significantly different (one-way ANOVA, p < 0.05).