Table 1. Identification of crocins in C. ancyrensis tepals and stigmas by UPLC-UV/MS.
Peak number | Presence Tepals | Stigmas | R t (min) | UV λmax (nm) | Fragmentation pattern m/z | Tentative identification |
1 | √ | √ | 1.02 | 446, 475 | (ES+) 1647.00, 999.00, 587.00, 325.00 | Trans-Crocetin +8 gluc |
2 | √ | √ | 1.14 | 447, 469 | (ES+) 1485.00, 1461.50, 1299.50, 999.36 | Trans-Crocetin +7 gluc |
3 | √ | √ | 1.32 | 445,470 | (ES−) 1323.51, 649.14, 975.35 | Trans-Crocetin +6 gluc |
4 | √ | 1.60 | 442, 468 | (ES+) 1648.00, 1145.10, 827.23, 651.25, 489.20, 325.11 | Trans-Crocetin +8 gluc | |
5 | √ | 1.90 | 444, 462 (sh) | (ES+) 1297.00, 1135.37, 811.30, 487.16, 325.12 | Trans-Crocetin +6gluc | |
6 | √ | √ | 1.99 | 328, 443, 468 | (ES−) 1300.48, 975.36 | Cis-Crocetin +6 gluc |
7 | √ | 2.23 | 327, 444, 468 | (ES+) 1323.48, 1134.21 | Cis-Crocetin +6 gluc | |
8 | √ | √ | 4.12 | 419 | (ES−) 921.00, 624.00, 479.00 | Trans-Crocetin +4 rham |
9 | √ | 4.36 | 328, 440, 470 (sh) | (ES+) 1297.44, 1135.37, 973.33, 811.28, 649.22, 487.17, 325.11(ES−) 1623.53 | Cis-Crocetin +8 gluc | |
10 | √ | 4.71 | 428 | (ES−) 1123.45 | Trans-Crocetin +4 rham | |
11 | √ | √ | 6.95 | 443, (sh) | (ES−) 975.35 | Trans-Crocetin +4 Gluc |
12 | √ | 7.86 | 306, 414, 460 | (ES−) 773.29 | Cis-Crocetin +3 rham | |
13 | √ | √ | 8.31 | 328, 437, 470 (sh) | (ES−) 1299.5, 975.45, 324.10 | Cis-Crocetin +6 gluc |
14 | √ | 8.45 | 438, 462 | (ES−) 1136.00, 975.36 | Trans-Crocetin +5 gluc | |
15 | 8.47 | 429, 445 | (ES−) 961.00 | Trans-Crocetin +3 gluc +1 rham | ||
16 | √ | √ | 8.96 | 436, 461 | (ES−) 1255.43, 1103.53, 813.00 | Trans-Crocetin +3 gluc +2 rham |
17 | √ | 9.17 | 312, 429, 450 (sh) | (ES−) 1398.60, 973.29, 799.34 | Cis-Crocetin +3 gluc +4 rham | |
18 | √ | 9.35 | 312, 430 | (ES−) 961.39, 647.20 | Cis-Crocetin +3 gluc+1 rham | |
19 | √ | 9.84 | 313, 418, 435 (sh) | (ES−) 959.37 | Cis-Crocetin +3 gluc +1 rham | |
20 | √ | 9.96 | 312, 431 | (ES−) 959.37 | Cis-Crocetin +3 gluc +1 rham | |
21 | √ | 10.18 | 313, 424 | (ES−) 961.40 | Cis-Crocetin +3 gluc +1 rham | |
22 | √ | √ | 10.35 | 435, 460 | (ES−) 551.20, 324.10 | Trans-Crocetin +2 gluc |
23 | √ | √ | 10.63 | 426, 440 (sh) | (ES−) 637.29, 324.10 | Trans-Crocetin +1 gluc +1 rham |
Data from negative and positive mode.