Table 1 Phenolic contents and Antioxidant activities of Medina and Hasawi mint1
From: Polyphenol composition and antioxidant potential of mint leaves
Phenolic contents and Antioxidant activities | Sample | ||||||
|---|---|---|---|---|---|---|---|
Medina mint | Hasawi mint | ||||||
Soluble | Bound | Aqueous infusion | Soluble - not dechlorophyllized | Soluble | Bound | Aqueous infusion | |
Total phenolics (mg GAE/g sample) | 109.98 ± 5.80a | 2.64 ± 0.11d | 53.22 ± 5.35e | 92.26 ± 3.71c | 36.80 ± 1.39b | 1.54 ± 0.08d | 23.99 ± 3.22f |
Antioxidant activity assays (mmol TE/100 g sample) | |||||||
DPPH | 108.75 ± 25.07a | 0.72 ± 0.04d | 87.35 ± 16.18ab | 95.73 ± 29.08ac | 60.90 ± 16.14bc | 0.12 ± 0.03d | 33.99 ± 1.92bcd |
ORAC | 5087 ± 176.0a | 9.348 ± 1.06d | 1563 ± 988.0bc | 4672 ± 420.0a | 2663 ± 76.0c | 6.000 ± 0.58d | 867 ± 696.0bd |
TEAC | 9849 ± 291.0a | 25.85 ± 0.84b | 5343 ± 103.0c | 7682 ± 68.0d | 3743 ± 317.0e | 20.31 ± 0.84b | 2260 ± 169.0f |
Reducing Power | 1692 ± 22.0a | 4.50 ± 0.08b | 108.0 ± 6.4c | 1571 ± 46.0d | 478.4 ± 2.2e | 2.05 ± 0.29b | 54.7 ± 1.2bc |
Iron (II) chelation (μmol EDTA eq/100 g sample) | 562 ± 30.0a | 0.316 ± 0.003c | 1006 ± 30.0d | 553 ± 5.0a | 425 ± 10.0b | 0.311 ± 0.007c | 1056 ± 50.0d |