Table 2.
DPPH Radical scavenging capacity of the twenty pigments at five concentrations. Values are expressed as mean ± SD of the percentage of DPPH inhibition. Pigments were ordered from the highest to the lowest scavenging activity measured at 25 ng mL−1. Abbreviations as in Table 1.
| 25 ng mL−1 | 50 ng mL−1 | 125 ng mL−1 | 250 ng mL−1 | 500 ng mL−1 | |
|---|---|---|---|---|---|
| Lut | 48.80 (±0.85) | 46.39 (±0.85) | 47.59 (±0.85) | −15.06 (±4.26) | −12.65 (±0.85) |
| Dt | 46.99 (±9.56) | 39.36 (±9.81) | 37.35 (±6.26) | 24.50 (±8.20) | 19.68 (±1.39) |
| 19′BFuco | 46.18 (±3.03) | 50.20 (±5.94) | 46.99 (±1.20) | 55.42 (±12.58) | 72.69 (±1.39) |
| α-Car | 45.89 (±1.36) | 34.62 (±8.98) | 43.96 (±8.42) | 46.86 (±5.88) | 20.45 (±0.56) |
| Ast | 43.64 (±3.90) | 18.20 (±1.12) | 31.08 (±5.82) | 32.69 (±4.02) | 19.16 (±5.66) |
| β-Car | 42.35 (±3.11) | 45.57 (±7.50) | 37.20 (±6.69) | 43.32 (±17.29) | 39.13 (±7.55) |
| Echi | 38.55 (±5.25) | 27.31 (±5.94) | 22.49 (±3.87) | 35.54 (±2.56) | 42.77 (±7.67) |
| Fuco | 36.14 (±11.04) | 40.36 (±9.37) | 36.55 (±9.74) | 45.38 (±13.22) | 58.43 (±0.85) |
| 19′HFuco | 36.14 (±8.52) | 39.36 (±11.70) | 41.37 (±9.66) | 42.17 (±2.41) | 60.24 (±4.34) |
| Anth | 25.60 (±2.73) | 35.91 (±18.97) | 49.76 (±8.20) | 58.94 (±7.52) | 62.80 (±0.68) |
| Lyco | 21.69 (±8.52) | 33.73 (±8.52) | 36.55 (±12.07) | 54.22 (±8.35) | 62.01 (±17.84) |
| Pras | 17.53 (±1.69) | 17.53 (±3.38) | 17.53 (±4.78) | 24.10 (±2.54) | 29.48 (±2.39) |
| Chl c3 | 17.39 (±6.15) | 31.88 (±8.88) | 35.27 (±1.37) | 40.74 (±5.90) | 43.48 (±3.42) |
| Zea | 17.13 (±0.69) | 19.40 (±0.61) | 23.21 (±1.27) | 26.49 (±0.85) | 45.62 (±4.23) |
| Myxo | 17.13 (±3.01) | 16.93 (±0.85) | 15.14 (±1.69) | 15.14 (±17.69) | 22.91 (±0.85) |
| Neo | 16.33 (±1.20) | 15.74 (±0.85) | 22.91 (±2.54) | 23.11 (±1.38) | 26.69 (±6.58) |
| Viol | 14.54 (±4.23) | 16.33 (±6.76) | 19.32 (±17.75) | 19.74 (±0.25) | 21.51 (±3.65) |
| Dd | 13.86 (±0.85) | 18.47 (±4.56) | 20.48 (±2.41) | 26.10 (±0.70) | 25.70 (±2.78) |
| Per | 2.59 (±0.85) | 7.17 (±1.83) | 19.02 (±0.42) | 20.52 (±0.85) | 25.30 (±5.92) |
| Allo | 0.97 (±0.68) | 10.14 (±1.37) | 28.50 (±12.30) | 42.03 (±6.83) | 61.35 (±4.10) |