Table 1 Detected GSLs in I. indigotica
From: Insights into glucosinolate accumulation and metabolic pathways in Isatis indigotica Fort.
No. | Name | Relative molecular weight | Mass after desulphonation (m/z) | Retention time (min) | Correction coefficient | Type |
|---|---|---|---|---|---|---|
1 | Progoitrin | 389 | 309 | 5.3 | 1.09 | aliphatic |
2 | Epiprogoitrin | 389 | 309 | 5.8 | 1.09 | aliphatic |
3 | Sinigrin (Internal standard) | 359 | 279 | 6.8 | 1 | aliphatic |
4 | Gluconapin | 373 | 293 | 10.2 | 1.11 | aliphatic |
5 | 4-hydroxy- 3-indolylmethyl GSL | 464 | 384 | 11.9 | 0.28 | indole |
6 | Glucobrassicanapin | 387 | 307 | 13.7 | 0.25 | aliphatic |
7 | Glucotropaeolin | 409 | 329 | 14.7 | 0.95 | aromatic |
8 | Indolyl-3-methyl | 448 | 368 | 16.8 | 0.29 | indole |
9 | 4-methoxy- 3-indolylmethyl GSL | 478 | 398 | 18.8 | 0.25 | indole |
10 | (R,S)-Glucoisatisin | 562 | 482 | 20.9(R) 21.1(S) | 1 | aliphatic |
11 | 1-methoxy- 3-indolylmethyl GSL | 478 | 398 | 23.8 | 0.2 | indole |