Table 4.
Total phenolic content (TPC), total flavonoid content (TFC), and antioxidant capacity (AC, measured using 2,2-diphenyl-1-picrylhydrazyl-DPPH assay) in quinoa plant parts. Numbers in parenthesis refer to citations from which the TPC, TFC, and AC data were obtained.
| Plant Parts Studied | TPC | TFC | AC_DPPH | References |
|---|---|---|---|---|
| (mg GAE 100 g−1 DW) | (mg QE 100 g−1 DW) | (mg TE 100 g−1 DW) | ||
| Leaf | 418.00–544.00 | 14.00–23.00 | 29.90–55.40 | [10] |
| Leaf | 10.55–10.75 mg/g | 8.69–9.14 mg/g | 46.00–62.65 | [22] |
| Leaf | 569.50 mg/g | NA | 50.70–65.30 mg/g | [23] |
| Leaf | 188 | NA | 34 | [24] |
| Leaf | 131.8 | 62.07 | NA | [26] |
| 1 Leaf | 16.03–16.10 mg/g | 2.02–2.54 mg/g | NA | [27] |
| Sprout | 58.91–71.01 mg/g | 3.29–9.05 mg/g | NA | [29] |
| Sprout | 101.2 | 18.02 | 61.41 | [61] |
| 1 Sprout | 308.82–417.75 | NA | NA | [31] |
| Sprout | 79.04 | NA | 27.39 | [32] |
| Sprout | 147 | 122.6 | 50.4 | [33] |
| 1 Sprout | 259.02–293.35 | 10.38–24.00 | 5.26–7.39 | [34] |
| Sprout | 49.02–51.63 | 290.00–304.10 | NA | [35,36] |
| 1 Sprout | 15.15–28.79 mg/g | 0.63–3.34 mg/g | NA | [27] |
| Infructescence | 172 | NA | 95 | [24] |
| Quinoa grain, raw | 39.29–198.23 [31,32] | 11.40–223.80 [36,61] | 13.61–59.61 [33,61] |
NA, not available; 1 Colored grain.