Research Article
Antioxidant, Cytotoxic, and Antiproliferative Activities and Total Polyphenol Contents of the Extracts of Geissospermum reticulatum Bark
Table 2
Antioxidant properties of multiple preparations from G. reticulatum.
| Sample | Infusions | Tinctures | Extracts |
| DPPH radical scavenging activity (mg DPPH/L) | 1 | 0.91 ± 0.02 | 1.48 ± 0.01 | 4.36 ± 0.03 | 2 | 1.68 ± 0.00 | 0.90 ± 0.03 | 5.31 ± 0.04 | 3 | 1.36 ± 0.00 | 0.45 ± 0.01 | 5.03 ± 0.03 | 4 | 1.52 ± 0.01 | 0.28 ± 0.01 | 6.79 ± 0.06 | 5 | 1.49 ± 0.00 | 1.63 ± 0.01 | 4.87 ± 0.11 | 6 | 1.12 ± 0.00 | 0.61 ± 0.01 | 3.11 ± 0.01 | 7 | 1.83 ± 0.00 | 1.55 ± 0.01 | 4.64 ± 0.04 |
| FRAP (mmol/L) | 1 | 1.01 ± 0.01 | 3.75 ± 0.03 | 6.28 ± 0.03 | 2 | 3.49 ± 0.01 | 5.27 ± 0.02 | 6.57 ± 0.05 | 3 | 1.74 ± 0.02 | 2.59 ± 0.01 | 7.13 ± 0.02 | 4 | 2.20 ± 0.02 | 2.57 ± 0.00 | 5.16 ± 0.07 | 5 | 2.13 ± 0.03 | 3.82 ± 0.01 | 4.27 ± 0.06 | 6 | 0.82 ± 0.01 | 2.30 ± 0.01 | 3.86 ± 0.03 | 7 | 3.45 ± 0.01 | 3.36 ± 0.02 | 7.28 ± 0.01 |
| ORAC (mmol TE/L) | 1 | 11.08 ± 0.22 | 22.75 ± 0.50 | 78.30 ± 0.65 | 2 | 20.34 ± 0.18 | 36.53 ± 0.22 | 80.57 ± 1.03 | 3 | 11.05 ± 0.13 | 20.91 ± 0.57 | 83.47 ± 0.48 | 4 | 11.29 ± 0.26 | 24.34 ± 0.37 | 64.37 ± 0.23 | 5 | 9.98 ± 0.14 | 25.03 ± 0.09 | 67.54 ± 0.48 | 6 | 7.76 ± 0.10 | 17.16 ± 0.58 | 26.30 ± 0.49 | 7 | 22.40 ± 0.77 | 29.67 ± 3.13 | 86.95 ± 0.58 |
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