Table 3.
Antioxidant activity of non-germinated and germinated QPIs of white, red and black quinoas using the ORAC method.
| ORAC (µmoL TE/g QPI) | |||
|---|---|---|---|
| Samples | 10 µmoL | 50 µmoL | 200 µmoL |
| White quinoa | |||
| QPI-NG | 112.80 ± 1.12 a | 151.56 ± 0.95 d | 175.15 ± 1.35 b |
| QPI-G1 | 110.01 ± 0.97 a | 147.80 ± 0.91 a | 170.82 ± 1.83 a |
| QPI-G3 | 112.33 ± 0.83 a | 150.93 ± 0.89 b | 174.43 ± 1.86 b |
| Black quinoa | |||
| QPI-NG | 111.18 ± 1.95 a | 149.38 ± 1.77 b | 172.64 ± 1.78 a |
| QPI-G1 | 111.05 ± 1.78 a | 149.21 ± 1.75 b | 172.44 ± 2.24 a |
| QPI-G3 | 111.31 ± 1.14 a | 149.55 ± 1.21 b | 172.84 ± 2.21 a |
| Red quinoa | |||
| QPI-NG | 112.35 ± 1.10 a | 152.21 ± 1.20 b | 175.91 ± 2.00 b |
| QPI-G1 | 113.29 ± 0.96 a | 152.21 ± 0.85 b | 175.91 ± 2.15 b |
| QPI-G3 | 113.47 ± 0.98 a | 152.35 ± 0.81 b | 175.66 ± 2.23 b |
QPI-NG (Non-germinated quinoa protein isolate), QPI-G1 (quinoa protein isolate germinated for 1 day), QPI-G3 (quinoa protein isolate germinated for 3 days. Results are the means ± standard deviation (SD) of six determinations (n = 6). Different superscripts letter for each quinoa cultivar within columns indicate significant statistical differences by one way Anova followed of Tukey’s test (P < 0.05).