Table 2.
Concentrations of total polyphenols, flavonoids, and non-flavonoids as well as antioxidant capacity via ORAC and FRAP analyses
| 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/100 g ± SD) |
78.2 ± 4.03 |
2.70 ± 0.14 |
413 ± 9.88 |
26.8 ± 0.63 |
0.93 ± 0.02 |
| Total flavonoids (mg of CE/100 g ± SD) |
5.3 ± 0.38 |
0.19 ± 0.01 |
33.6 ± 1.98 |
2.15 ± 0.13 |
0.08 ± 0.003 |
| Total non-flavonoids (by calculation) |
73.7 ± 0.43 |
2.55 ± 0.22 |
378 ± 6.78 |
24.5 ± 1.5 |
0.86 ± 0.02 |
| ORAC, hydrophilic (ímol of TE/g) |
53 ± 1.1 |
1.81 ± 0.04 |
136 ± 2.3 |
8.83 ± 0.16 |
0.30 ± 0.006 |
| ORAC, lipophilic (ímol of TE/g) |
ND |
ND |
ND |
ND |
ND |
| ORAC, total (ímol of TE/g) |
53 ± 1.1 |
1.81 ± 0.04 |
136 ± 2.3 |
8.83 ± 0.16 |
0.30 ± 0.006 |
| FRAP (ímol/g) | 4.9 ± 0.25 | 0.17 ± 0.07 | 19.0 ± 0.3 | 1.21 ± 0.02 | 0.05 ± 0.001 |
Concentrations of total polyphenols, flavonoids, and non-flavonoids as well as antioxidant capacity via oxygen radical absorbance capacity (ORAC) and ferric reducing antioxidant power (FRAP) analyses in lyophilized aloe ferox leaf gel (LGE) and 95% ethanol leaf gel extracts (ELGE). ND, not detected.