Table 2.
Antioxidant activity of Oenocarpus bataua and Oenocarpus bacaba leaflet and root extracts.
| Extract | Organ | Palm | DPPH a | FRAP b | ORACFL c | |||
|---|---|---|---|---|---|---|---|---|
| (µmol TEq d/g DM e) | Statistical Significance f (p < 0.05) | (µmol Fe(II)Eq g/g DM e) | Statistical Significance f (p < 0.05) | (µmol TEq d/g DM e) | Statistical significance f (p < 0.05) | |||
| Water | Leaflet | Obt h | 68.9 ± 10.9 | E | 138 ± 28 | F | 229 ± 42 | DE |
| Obc i | 468.9 ± 218.5 | ABC | 480 ± 178 | CDEF | 610 ± 247 | BCE | ||
| Root | Obt h | 60.9 ± 18.7 | E | 128 ± 20 | F | 218 ± 28 | E | |
| Obc i | 83.3 ± 10.8 | DE | 196 ± 8 | EF | 248 ± 17 | CDE | ||
| Acetone/Water (70/30 v/v) | Leaflet | Obt h | 461 ± 35.8 | AB | 729 ± 23 | ABC | 1203 ± 168 | A |
| Obc i | 544.9 ± 106 | A | 1026 ± 218 | A | 1565 ± 183 | A | ||
| Root | Obt h | 288.7 ± 12.7 | BCD | 559 ± 44 | BCD | 720 ± 76 | B | |
| Obc i | 252.3 ± 11.3 | BCDE | 512 ± 26 | CDE | 656 ± 66 | B | ||
| Methanol/Water (70/30 v/v) | Leaflet | Obt h | 197.4 ± 39 | CDE | 327 ± 54 | DEF | 569 ± 38 | BCDE |
| Obc i | 389.7 ± 116.1 | ABC | 917 ± 231 | AB | 1268 ± 199 | A | ||
| Root | Obt h | 227.7 ± 33.9 | CDE | 418 ± 52 | CDEF | 627 ± 68 | BC | |
| Obc i | 215.9 ± 12 | CDE | 441 ± 34 | CDEF | 579 ± 67 | BCDE | ||
a DPPH: 2,2-diphenyl-1-picrylhydrazyl; b FRAP: ferric-reducing ability of plasma); c ORACFL: oxygen radical absorbance capacity; d TEq: Trolox equivalent; e DM: Dry Matter; f Extracts which share common letters are statistically identical using Fisher’s least significant difference test (p < 0.05); g Eq: equivalent; h Obt: Oenocarpus bataua; i Obc: Oenocarpus bacaba. n = 3 biological repetitions and error represent Standard Error of the Mean (SEM).