Table 4.
Antioxidant activity of QPIs digest of non-germinated and germinated white, red and black quinoas using the ORAC method.
| ORAC (µmoL TE/g Digests) | |||
|---|---|---|---|
| Samples | 10 µmoL | 100 µmoL | 200 µmoL |
| White quinoa | |||
| QPI-NG-GD | 181.62 ± 3.22 | 233.85 ± 3.00 | 280.10 ± 1.78 |
| QPI-NG-DD | 206.23 ± 4.15 | 260.36 ± 3.42 | 345.91 ± 1.02 |
| QPI-G1-GD | 190.01 ± 2.36 | 240.70 ± 2.08 | 305.22 ± 2.07 |
| QPI-G1-DD | 220.01 ± 0.57 | 275.01 ± 4.15 | 394.62 ± 3.19 |
| QPI-G3-GD | 195.08 ± 3.45 | 252.87 ± 2.09 | 310.13 ± 4.11 |
| QPI-G3-DD | 224.56 ± 2.13 | 272.87 ± 6.26 | 390.13 ± 5.03 |
| Black quinoa | |||
| QPI-NG-GD | 184.89 ± 1.09 | 237.94 ± 3.36 | 275.43 ± 5.47 |
| QPI-NG-DD | 200.14 ± 4.03 | 257.11 ± 1.09 | 352.67 ± 3.12 |
| QPI-G1-GD | 230.05 ± 3.18 | 278.22 ± 1.55 | 401.42 ± 2.36 |
| QPI-G1-DD | 230.05 ± 3.18 | 277.22 ± 3.44 | 412.51 ± 3.98 |
| QPI-G3-GD | 235.31 ± 2.00 | 279.24 ± 0.60 | 395.14 ± 4.023 |
| QPI-G3-DD | 228.35 ± 2.30 | 273.01 ± 0.31 | 385.91 ± 2.25 |
| Red quinoa | |||
| QPI-NG-GD | 180.02 ± 1.18 | 241.95 ± 0.01 | 272.11 ± 2.55 |
| QPI-NG-DD | 203.55 ± 1.10 | 263.08 ± 0.35 | 349.11 ± 1.00 |
| QPI-G1-GD | 232.05 ± 1.95 | 281.54 ± 0.94 | 396.21 ± 2.37 |
| QPI-G1-DD | 229.28 ± 3.24 | 295.63 ± 1.92 | 398.55 ± 2.60 |
| QPI-G3-GD | 233.35 ± 3.19 | 290.64 ± 1.11 | 385.04 ± 3.00 |
| QPI-G3-DD | 228.29 ± 2.65 | 275.49 ± 3.34 | 382.09 ± 3.14 |
QPI-NG (non-germinated quinoa protein isolate), QPI-G1 (quinoa protein isolate obtained of quinoa germinated for 1 day), QPI-G3 (quinoa protein isolate obtained of quinoa germinated for 3 days). GD (gastric digests) and DD (duodenal digests). 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).