Table 1.
The content of various antioxidant substances in acid hydrolysates of 27 indigenous Taiwanese vegetables.
| Sample * | Polyphenols mg GAE/g DW | Flavonoids mg QUE/g DW | Flavonols mg QUE/g DW | Anthocyanidins unit/g DW |
|---|---|---|---|---|
| Aa | 4.26 ± 0.15 j | 18.51 ± 3.50 g | 3.46 ± 1.14 g | ND |
| Abe | 3.24 ± 0.21 jk | 14.31 ± 1.12 h | 3.73 ± 0.45 g | 5.27 ± 0.31 e |
| Ac | 5.81 ± 0.37 i | 40.44 ± 3.33 e | 6.92 ± 2.73 ef | ND |
| Al | 11.45 ± 0.54 fg | 42.68 ± 4.62 de | 10.84 ± 2.36 d | ND |
| Am (green) | 6.41 ± 0.09 hi | 45.40 ± 2.07 d | 7.05 ± 2.41 e | ND |
| Am (red) | 11.14 ± 0.05 fg | 40.26 ± 1.49 e | 5.87 ± 2.70 f | ND |
| Ane | 12.94 ± 1.12 f | 28.24 ± 4.17 f | 15.26 ± 2.78 cd | 4.85 ± 0.24 e |
| Ba | 7.12 ± 1.40 h | 42.71 ± 3.06 de | 7.73 ± 2.19 e | ND |
| Bc | 8.19 ± 0.16 h | 39.31 ± 1.69 e | 5.95 ± 1.93 f | ND |
| Gb | 9.61 ± 0.34 gh | 56.07 ± 5.03 c | 7.59 ± 0.69 e | 21.65 ± 0.02 d |
| Hf (bright orange) | 2.90 ± 0.03 k | 8.67 ± 0.36 h | 3.47 ± 0.80 g | 60.97 ± 6.79 c |
| Hf (green) | 6.27 ± 0.33 hi | 16.37 ± 1.23 gh | 5.13 ± 3.38 f | 3.48 ± 0.12 e |
| Ib (green) | 18.17 ± 0.06 d | 42.45 ± 2.38 de | 7.80 ± 1.43 e | ND |
| Ib (purple) | 22.80 ± 0.50 c | 67.66 ± 9.76 b | 23.82 ± 1.94 b | 275.60 ± 26.21 b |
| Lc | 9.24 ± 0.81 gh | 46.80 ± 6.68 d | 10.76 ± 2.70 d | ND |
| Li | 15.15 ± 2.77 e | 38.78 ± 3.25 e | 15.13 ± 2.96 cd | ND |
| Mc | 2.60 ± 0.81 k | 19.28 ± 1.12 g | 2.13 ± 0.14 h | 0.31 ± 0.19 g |
| Nc | 3.82 ± 1.02 jk | 23.28 ± 0.54 f | 6.71 ± 0.44 f | ND |
| Ob | 23.78 ± 0.49 c | 37.94 ± 4.93 e | 13.01 ± 3.55 cd | ND |
| Po | 40.80 ± 0.92 b | 82.42 ± 7.34 a | 28.43 ± 1.23 a | 471.48 ± 36.40 a |
| Pp | 10.02 ± 3.74 g | 27.04 ± 0.10 f | 3.15 ± 2.22 gh | ND |
| Se (green) | 2.62 ± 0.52 k | 4.27 ± 0.14 i | 1.00 ± 0.22 i | 1.42 ± 1.09 f |
| Se (yellow) | 0.63 ± 0.18 l | 1.87 ± 0.23 j | 2.22 ± 0.42 h | 1.12 ± 0.05 f |
| Sl | 5.52 ± 0.42 i | 38.56 ± 4.87 e | 8.23 ± 2.24 de | ND |
| Sn | 10.35 ± 0.28 g | 45.40 ± 4.79 d | 9.42 ± 0.62 de | ND |
| So | 4.13 ± 0.69 j | ND | 5.03 ± 1.10 fg | 1.34 ± 0.20 f |
| Ts | 81.86 ± 1.48 a | 62.23 ± 4.62 bc | 18.16 ± 0.87 c | ND |
* Complete names of the tested samples are described in the Plant materials. All values are means ± SD (n = 3). Means within a column with different letters (a~l) are significantly different by LSD at p < 0.05. ND, not detected. GAE, gallic acid equivalent. QUE, quercetin equivalent. DW, dry weight.