Table 3.
Cytotoxicity and cellular antioxidant activity of O. bataua and O. bacaba extracts in NHDF cells.
| Extract | Organ | Palm | CAA Assay (Cellular Antioxidant Activity) | Cytotoxicity (MTT Assay) (µg/mL) | ||
|---|---|---|---|---|---|---|
| EC50 (µg/mL) | µmoles Quercetin Eq a/g DM b | µmoles Quercetin Eq a/100 g FW c | ||||
| Water | Leaflet | Obt d | 65.7 ± 19.8 | 7.3 ± 2.2 | 365 ± 110 | >400 |
| Obc e | 73.8 ± 11.3 | 6.5 ± 1.1 | 286 ± 47 | Not toxic | ||
| Root | Obt d | 71.9 ± 5.7 | 11.9 ± 1 | 252 ± 21 | >400 | |
| Obc e | 15.5 ± 1.3 | 15.5 ± 1.2 | 887 ± 69 | Not toxic | ||
| Acetone/Water (70/30 v/v) | Leaflet | Obt d | 13.8 ± 2.3 | 100.9 ± 17 | 5028 ± 847 | Not toxic |
| Obc e | 24.1 ± 4.9 | 49.7 ± 11.5 | 2172 ± 502 | >200 | ||
| Root | Obt d | 21.7 ± 3.2 | 34.7 ± 4.8 | 734 ± 101 | >100 | |
| Obc e | 10.4 ± 0.6 | 29.3 ± 1.9 | 1670 ± 106 | Not toxic | ||
| Methanol/Water (70/30 v/v) | Leaflet | Obt d | 44.8 ± 0.3 | 19.7 ± 0.2 | 984 ± 7 | Not toxic |
| Obc e | 30 ± 3 | 24.2 ± 2.4 | 1057 ± 104 | Not toxic | ||
| Root | Obt d | 29.3 ± 2.9 | 35.3 ± 3.8 | 751 ± 80 | Not toxic | |
| Obc e | 12.9 ± 1 | 31.5 ± 2.5 | 1799 ± 145 | Not toxic | ||
a Eq: equivalent; b DM: Dry Matter; c FW: fresh weight; d Obt: Oenocarpus bataua; e Obc: Oenocarpus bacaba. n = 3 repetitions and error represent Standard Deviation (SD).