Table 1.
Identification of differential compounds based on UPLC-MS
| tR (min) |
Identified compound | Mass (neutral) |
Error (ppm) |
Formulate | MSE fragment ions (m/z) |
|---|---|---|---|---|---|
| 3.26 | Picrocrocinic acid | 346.1628 | -1.16 | C16H26O8 | 345.1546[M-H]- |
| 3.5 | Astragalin | 448.1006 | 0.00 | C21H20O11 | 449.1084[M+H]+ |
| 3.5 | Kaempferol-3-O-β-D-sophorocoside | 610.1534 | -3.11 | C27H30O16 | 611.1593[M+H]+ |
| 4.12 | Rutin | 610.1534 | 7.04 | C27H30O16 | 611.1655[M+H]+ |
| 4.57 | Quercetin-3-O-sophoroside | 626.1483 | 5.44 | C27H30O17 | 625.1439[M-H]- |
| 4.76 | Safranal | 150.1045 | 5.96 | C10H14O | 151.1132[M+H]+ |
| 4.9 | Kaempferol | 286.0477 | -0.35 | C15H10O6 | 287.0554[M+H]+ |
| 5.89 | Crocin I | 976.3788 | -0.82 | C44H64O24 | 975.3702[M-H]- |
| 6.38 | Crocetin | 328.1675 | -0.61 | C20H24O4 | 329.1751[M+H]+, 311.1652[M+ H-H2O]+ |
| 8.1 | Crocin II | 814.3259 | -2.58 | C38H54O19 | 815.3160[M-H]- |