Table 3.
Identification of metabolites in Blechnum magellanicum by UHPLC-ESI-QTOF-MS.
| Peak | Tentative Identification | [M-H]− | Retention Time (min.) | Theoretical Mass (m/z) | Measured Mass (m/z) | Accuracy (ppm) | Metabolite Type | MS Ions (ppm) |
|---|---|---|---|---|---|---|---|---|
| 1 | Unknown | C4H2O14 | 5.70 | 273.9450 | 273.94790 | 10.5 | - | 174.9463 |
| 2 | 6-O-Caffeoylsucrose | C19H18O6 | 7.30 | 503.1401 | 503.14063 | 2.0 | CH | 425.0534 |
| 3 | Zapotin | C19H18O6 | 8.1 | 341.0971 | 341.0966 | −1.45 | F | 191.0513 |
| 4 | Unknown | C11H17O12 | 12.93 | 341.0740 | 341.0722 | 4.37 | - | 179.0273, 679.1807 (2M-H) |
| 5 | Glucose gallate | C13H15O11 | 14.13 | 347.0619 | 347.0631 | 3.34 | A | 193.0419 |
| 6 | Methyl vanillate glucoside | C15H19O9 | 17.1 | 343.1035 | 343.1023 | 3.3 | CH | 283.2497 |
| 7 | Phloroglucin-1-O-(6″-galloyl-glucoside) | C19H19O12 | 18.0 | 439.0882 | 439.0899 | −3.8 | A | - |
| 8 | Caffeoyl-hexoside malate | C19H21O13 | 18.7 | 457.0988 | 457.0996 | −1.7 | A | - |
| 9 | D-Galactose fragment | C12H25O11 | 19.9 | 345.1402 | 345.1397 | 1.7 | CH | - |
| 10 | Unknown | C15H21O15 | 21.8 | 441.0886 | 441.0900 | −3.2 | - | - |
| 11 | 3-O-Galloylmalic acid | C9H23O12 | 22.14 | 285.0252 | 285.0282 | 12.3 | A | 241.9917 |
| 12 | 2-O-Galloylmalic acid | C9H23O12 | 22.27 | 285.0252 | 285.0274 | 10.8 | A | 240.9913 |
| 13 | 4-O-Galloylmalic acid | C9H23O12 | 22.27 | 285.0252 | 285.0284 | 7.8 | A | 240.9913 |
| 14 | 3-O-Caffeoyl-5-O-malonylquinic acid | C19H19O12 | 23.91 | 439.0823 | 439.0836 | 3.0 | A | 341.1264 |
| 15 | Unknown | C17H35O13 | 28.1 | 447.2083 | 447.2075 | 1.7 | - | - |
| 16 | Unknown | C15H31O7 | 34.5 | 323.2075 | 323.2079 | −1.1 | - | - |
| 17 | Galloyl citrate | C13H11O11 | 38.6 | 343.0400 | 343.0358 | −12.4 | A | 299.0464 |
CH = carbohydrate; F = flavonoid; A = aromatic.