Table 1.
The identification compounds in total polyphenolic extract of L. rotata (TPLR) by UPLC-Q exactive mass spectrometer
| Peak Number | RT (min) | Compound | Formula | Calculated (Da) | [M–H]− | [2 M–H]− | [M + Na] + | [2 M + Na] + |
|---|---|---|---|---|---|---|---|---|
| 1 | 4.92 | Decaffeoylverbascoside | C20H30O12 | 462.17373 | 461.16620 | 923.33917 | 485.16238 | 947.33582 |
| 2 | 5.27 | Chlorogenic acid | C16H18O9 | 354.09509 | 353.08731 | 707.18236 | 377.08377 | 731.17810 |
| 3 | 5.56 | 1-O-Caffeoylrungiose | C21H28O13 | 488.15300 | – | – | 511.14163 | 999.29266 |
| 4 | 5.93 | Icariside H1 | C18H26O9 | 386.15769 | 385.11379 | 771.30755 | – | – |
| 5 | 6.54 | Campneoside II | C29H36O16 | 640.20034 | 639.19263 | 1249.39284 | – | – |
| 6 | 7.56 | Forsythoside C | C29H36O16 | 640.20034 | 639.19263 | 1249.39276 | 663.18854 | 1303.38794 |
| 7 | 8.29 | Forsythoside B | C34H44O19 | 756.24769 | 755.23987 | – | 779.23553 | – |
| 8 | 8.68 | Luteolin-7-O-[β-D-apiose(6 → 1)]-β-glucoside | C26H28O15 | 580.14283 | 579.13525 | 1159.27661 | 603.13123 | 1183.27307 |
| 9 | 9.56 | Luteoloside | C21H20O11 | 448.10057 | 447.09311 | 895.19373 | 471.08926 | 895.19373 |
| 10 | 9.85 | isoverbascoside | C29H36O15 | 624.20543 | 623.19788 | 1247.40161 | 647.19403 | 1247.40161 |
| 11 | 11.89 | Verbascoside | C29H36O15 | 624.20543 | 623.19806 | 1247.40161 | 647.19366 | 1271.39807 |
| 12 | 13.09 | Luteolin-3’-O-β-D-glucopyranside | C21H20O11 | 448.10057 | 447.09309 | 895.19376 | 471.08924 | 895.19375 |
| 13 | 13.44 | Apigenin-7-O-β-D-glucopyranoside | C21H20O10 | 432.10565 | 431.09805 | 863.20319 | 455.09390 | 887.19891 |
| 14 | 14.69 | Dehydroacteoside | C29H34O15 | 622.18978 | 621.18213 | 1243.37048 | 645.17816 | 1267.36707 |
| 15 | 15.08 | Lamiophlomioside A | C36H48O15 | 784.27899 | 783.27118 | – | 807.26715 | – |
| 16 | 15.31 | Leucosceptoside A | C30H38O15 | 638.22108 | 637.21350 | 1275.43408 | 661.20966 | 1299.43030 |
| 17 | 16.12 | 6′′-O-acetylastragalin | C22H22O13 | 490.11113 | 489.10358 | 979.21387 | 513.09967 | 1003.20941 |
| 18 | 17.00 | Luteolin | C15H10O6 | 286.04774 | 285.04022 | 571.08765 | – | – |
| 19 | 18.29 | Apigenin | C15H10O5 | 270.05283 | 269.04553 | 539.09816 | – | – |
| 20 | 18.93 | Chrysosplenol F | C18H16O8 | 360.08452 | 359.07700 | 719.16132 | 383.07300 | 743.15747 |
| 21 | 19.31 | Chrysosplenol E | C19H18O8 | 374.10017 | – | – | 397.08853 | 771.18829 |
| 22 | 20.11 | Apigenin7-O-(6″-(E)-p-coumaroyl-β-D-galactopyranoside | C30H26O12 | 578.14243 | 577.35046 | 1155.27698 | 601.27307 | 1179.27234 |