Table 7.
Oxygen Radical Absorbance Capacity (ORAC) antioxidant activity of extracts from U. tomentosa bark commercial products.
| Product | ORAC (µmol/g) 1,2,3 | Product | ORAC (µmol/g) 1,2,3 |
|---|---|---|---|
| CR-1 | 0.76 cde ± 0.04 | SP-4 | 1.03 b ± 0.04 |
| CR-2 | 0.08 j ± 0.01 | SP-5 | 0.69 de ± 0.06 |
| CR-3 | 0.78 cd ± 0.02 | SP-6 | 0.92 bc ± 0.06 |
| CR-4 | 0.63 def ± 0.01 | SP-7 | 0.41 gh ± 0.01 |
| CR-5 | 0.68 de ± 0.02 | SP-8 | 0.64 def ± 0.04 |
| CR-6 | 0.43 fgh ± 0.03 | SP-9 | 0.25 hi ± 0.02 |
| SP-1 | 0.40 gh ± 0.04 | SP-10 | 0.31 h ± 0.02 |
| SP-2 | 1.31 a ± 0.08 | SP-11 | 0.35 gh ± 0.01 |
| SP-3 | 0.55 efg ± 0.03 | SP-12 | 0.41 gh ± 0.03 |
1 µmol of Trolox equivalents (TE)/mg product. 2 Values are expressed as mean ± standard deviation (S.D.). 3 Different superscript letters indicate differences are significant at p < 0.05.