Table 2.
Phenolic compounds identified by HPLC-PAD and HPLC-ESI-MS in a red lentil acetonic extract.
| Compound number | λmax(nm) | [M-H]−(m/z) | Fragment Ions (m/z) | Compounds | Content (μg/g) |
|---|---|---|---|---|---|
| 1 | 302.5 | 153.1 | Gallic aldehyde | 13.45 ± 1.02 | |
| 2 | 278.8 | 577.1 | 289 | Procyanidin dimer (1) | 20.68 ± 1.23 |
| 3 | 276.4 | 593.1 | 289.1 | Prodelphinidin dimer (1) | 154.8 ± 4.14 |
| 4 | 282.3 | 881.3 | 577; 289 | Digallate procyanidin dimer | 83.29 ± 3.69 |
| 5 | 278.8 | 865 | 577.1; 289 | Procyanidin trimer (1) | 48.2 ±2.11 |
| 6 | 276.5 | 593.1 | 289 | Prodelphinidin dimer (2) | 6.8 ± 0.19 |
| 7 | 255,5 | 137.1 | p-Hydroxybenzoic acid | 73.46 ± 2.09 | |
| 8 | 278.8 | 451.1 | 289.1 | Catechin glucoside | 51.95 ±2.62 |
| 9 | 278.8 | 289 | Catechin | 36.02 ±1.36 | |
| 10 | 277.2 | 745.1 | 577; 169 | Procyanidin gallate | 32.78 ±1.23 |
| 11 | 278.8 | 577 | 289 | Procyanidin dimer (2) | 18.7 ±1.14 |
| 12 | 277 | 203.1 | Tryptophan | 122.4 ±3.7 | |
| 13 | 278.8 | 451.1 | 289 | Epicatechin glucoside | 6.65 ± 0.22 |
| 14 | 278.8 | 289 | Epicatechin | 98.21 ± 3.57 | |
| 15 | 278.8 | 865 | 577.1; 289 | Procyanidin trimer (2) | 39.3 ±1.19 |
| 16 | 309 | 163 | trans-p-Coumaric acid | 38.84 ±2.11 | |
| 17 | 256; 355.5 | 625.3 | 301 | Quercetin diglycoside | 287.84 ±14.3 |
| 18 | 322.9 | 193 | trans-Ferulic acid | 15.99 ±1.12 | |
| 19 | 278.8 | 577 | 289 | Procyanidin dimer (3) | 26.6 ±1.28 |
| 20 | 265; 347.8 | 447,1 | 285 | Kaempferol derivative | 37.56 ±1.96 |
| 21 | 235.7 | 223.2 | Sinapic acid | 0.06 ± 0.02 | |
| 22 | 256; | 505.4 | 301.1 | Quercetin hexose, acylated | 21.17 ±1.03 |
| 23 | 267sh, | 505.4 | 301.1 | Quercetin hexose, acylated | 0.27 ± 0.04 |
| 24 | 325, 335 | 430,1 | 269.1 | apigenin hexose | 14.45 ±1.08 |