Table 1.
Profile of major bioactives detected in CAB by HPLC-QTOF-MS.
| Peak No. | Retention Time | Observed Accurate Mass (m/z) | Predicted Formula | Calculated Mass (Da) | Tentative Identity of Compound |
|---|---|---|---|---|---|
| 4 | 2.0 | 503.1527 [M − H]− | C21H28O14 | 504.1479 | Caffeic acid dihexoside |
| 12 | 15.1 | 353.0877 [M − H]− | C16H18O9 | 354.0951 | 3-O-Caffeoylquinic acid |
| 14 | 17.0 | 353.088 [M − H]− | C16H18O9 | 354.0951 | 5-O-Caffeoylquinic acid |
| 21 | 21.3 | 693.2790 [M − H2O − H]− | C34H48O16 | 712.2942 | Nominilic acid 17-glucoside |
| 22 | 21.6 | 477.0685 [M − H]− | C21H18O13 | 478.0747 | Quercetin 3-O-glucoronide |
| 23 | 22.4 | 5151195 [M − H]− | C25H24O12 | 516.1268 | 3,4-O-Dicaffeoylquinic acid |
| 24 | 22.9 | 515.1209 [M − H]− | C25H24O12 | 516.1268 | 3,5-O-Dicaffeoylquinic acid |
| 25 | 23.3 | 601.1226 [M − H]− | C28H26O15 | 602.1272 | 3,5-O-Dicaffeoyl-4-malonylquinic acid |
| 26 | 23.6 | 515.1203 [M − H]− | C25H24O12 | 516.1268 | 4,5-O-Dicaffeoylquinic acid |
| 27 | 24.0 | 601.1209 [M − H]− | C28H26O15 | 602.1272 | 3,5-O-Dicaffeoyl-4-malonylquinic acid isomer |
| 28 | 24.4 | 601.1228 [M − H]− | C28H26O15 | 602.1272 | Eriodictyol 7-(6-galloylglucoside) |
| 29 | 24.7 | 1019.5149 [M + Formate]− | C49H79O22 | 1019.5063 | Asiaticoside B |
| 30 | 24.8 | 1019.5149 [M + Formate]− | C49H79O22 | 1019.5063 | Madecassoside |
| 31 | 25.1 | 529.1351 [M − H]− | C26H26O12 | 530.1424 | 3-Caffeoyl-4-feruloylquinic acid |
| 32 | 25.2 | 873.4522 [M + Formate − H]− | C43H69O18 | 874.4562 | Centellasaponin B |
| 33 | 25.7 | 1003.5166 [M + Formate − H]− | C49H79O21 | 1004.5192 | Centellasaponin A |
| 34 | 26.1 | 957.5088 [M − H]− | C48H78O19 | 958.5137 | Asiaticoside |
| 36 | 27.8 | 1061.5180 [M − H]− | C51H82O23 | 1062.5247 | Avenacoside A |
| 39 | 29.8 | 987.5213 [M − H]− | C49H79O20 | 988.5243 | Soyasaponin I |
| 40 | 30.2 | 571.0881 [M − H2O − H]− | C30H20O12 | 572.0955 | Manniflavanone |