Table 2.
Concentrations of Total Polyphenols, Flavonoids, Non-Flavonoids, Oxygen Radical Absorbance Capacity (ORAC) and Ferric Reducing Antioxidant Power (FRAP) in Lyophilized Aloe greatheadii var davyana Leaf Gel (LGE) and 95% Aqueous Ethanol Leaf Gel Extracts (ELGE).
| Compound | LGE(dry mass) | LGE(wet mass) | ELGE(expressed as dry mass ELGE) | ELGE(expressed as dry mass LGE) | ELGE(expressed as wet mass LGE) |
|---|---|---|---|---|---|
| Total polyphenols (mg of GAE/100g ± SD) | 45.1 ± 0.94 | 1.20 ± 0.03 | 263 ± 6.51 | 30.9 ± 0.77 | 0.82 ± 0.02 |
| Total flavonoids (mg of CE/100g ± SD) | 7.66 ± 0.26 | 0.20 ± 0.01 | 20.2 ± 0.50 | 2.37 ± 0.06 | 0.06 ± 0.001 |
| Total non-flavonoids (by calculation) | 37.8 ± 0.99 | 0.99 ± 0.03 | 243 ± 6.96 | 28.6 ± 0.82 | 0.75 ± 0.02 |
| ORAC – hydrophyllic (μmol of TE/g) | 59.0 ± 1.16 | 2.05 ± 0.4 | 83.0 ± 1.32 | 5.42 ± 1.21 | 0.19 ± 0.04 |
| ORAC – lipophyllic (μmol of TE/g) | - | - | - | - | - |
| ORAC – total (μmol of TE/g) | 59.0 ± 1.16 | 2.05 ± 0.4 | 83.0 ± 1.32 | 5.42 ± 1.21 | 0.19 ± 0.04 |
| FRAP (μmol/g) | 2.63 ± 0.21 | 0.09 ± 0.01 | 8.98 ± 0.21 | 0.58 ± 0.01 | 0.02 ± 0.001 |
“-” denotes nothing detected.