Table 2 Results of the t-test, for the percentage of DPPH radical capture, for the different extracting solvents and extraction methods.
From: In vitro antioxidant extracts evaluation from the residue of the Hevea brasiliensis seed
Time (h) | Concentration (g L−1) | Watera | Methanolb | Ethanola | Hexanec |
|---|---|---|---|---|---|
InfusionA | |||||
2 | 20 | 4.16 ± 0.59 | 8.03 ± 3.39 | 8.49 ± 0.26 | 3.51 ± 1.17 |
2 | 40 | 21.68 ± 0.69 | – | 15.12 ± 0.09 | 5.55 ± 0.27 |
2 | 60 | 20.78 ± 0.20 | 9.91 ± 2.07 | 16.87 ± 0.17 | – |
4 | 20 | 12.54 ± 0.29 | – | 13.19 ± 0.09 | – |
4 | 40 | 15.24 ± 0.20 | 1.67 ± 0.74 | 8.98 ± 0.26 | – |
4 | 60 | 20.85 ± 0.29 | 2.40 ± 0.44 | 10.18 ± 0.09 | – |
6 | 20 | 3.05 ± 0.08 | 2.71 ± 0.15 | 7.41 ± 0.09 | – |
6 | 40 | 1.45 ± 0.49 | 6.10 ± 0.22 | 7.05 ± 0.26 | – |
6 | 60 | 12.67 ± 0.49 | 8.08 ± 0.66 | 10.36 ± 0.00 | – |
SoxhletB | |||||
2 | 20 | 9.35 ± 0.69 | 8.71 ± 0.81 | 10.54 ± 0.09 | – |
2 | 40 | 22.65 ± 0.10 | 19.76 ± 1.40 | 8.80 ± 0.17 | – |
2 | 60 | 34.00 ± 0.69 | 13.61 ± 1.25 | 12.11 ± 0.09 | – |
4 | 20 | 19.18 ± 0.49 | 12.72 ± 1.92 | 1.27 ± 1.96 | – |
4 | 40 | 36.36 ± 0.88 | 13.56 ± 0.74 | 14.76 ± 1.11 | – |
4 | 60 | 49.45 ± 0.39 | 10.79 ± 1.11 | – | – |
6 | 20 | 6.58 ± 0.29 | 10.85 ± 1.03 | 5.06 ± 2.90 | – |
6 | 40 | 30.13 ± 0.49 | 12.20 ± 0.15 | – | – |
6 | 60 | 36.43 ± 1.18 | 19.08 ± 0.30 | 10.78 ± 0,26 | – |
