TABLE 1.
Phytochemical compounds detected and characterized in Lithraea caustica leaves (AcOEtE-2, Phenolic-Acid Fraction), using liquid chromatography electrospray ionization tandem mass spectrometric in negative mode ionization.
| PeakNo. | Retention time (min | [M-H]-(m/z) | Fragments ions (m/z) | Tentative assignment | Reference |
|---|---|---|---|---|---|
| 1 | 3.1 | 326.9 | 168.4, 124.5 | Gallic acid derivative | |
| 2 | 4.3 | 169.2 | 124.2 | Gallic acid | |
| 5 | 11.6 | 635.2 | 483.0, 465.1, 301.1 | Trigalloyl-hexose (isomer I) | Hooi Poay et al. (2011), Wyrepkowski et al. (2014) |
| 6 | 13.3 | 289.6 | 244.7, 204.6, 178.7 | epi-chatechin | |
| 7 | 14.6 | 635.1 | 483.0, 465.1, 313.1 | Trigalloyl-hexose (isomer II) | |
| 633.9 | Hexahydroxydiphenic acid-galloyl-hexose | Gordon et al. (2011), Chisté and Mercadante (2012), Regueiro et al. (2014) | |||
| 631.7 | 479.0, 316.9 | Myricetin-O-galloyl- hexoside (isomer I) | |||
| 8 | 15.3 | 454.1 | 326.9, 312.9, 168.4 | Digalloyl-pentose | |
| 9 | 15.7 | 632.1 | 479.2 | Myricetin-O-galloyl-hexoside (isomer II) | |
| 10 | 16.1 | 635.3 | 483.0, 465.0, 313.0 | Trigalloyl-hexose (isomer III) | |
| 616.2 | 463.0, 301.0 | Quercetin-O-galloyl-hexoside (isomer I) | |||
| 480.0 | Myricetin-O-hexoside (isomer I) | ||||
| 12 | 16.8 | 480.4 | 316.4 | Myricetin-O-hexoside (isomer II) | |
| 13 | 17.1 | 615.7 | 463.1, 301.2 | Quercetin-O-galloyl-hexoside (isomer II) | |
| 14 | 17.6 | 615.5 | 463.0, 300.9 | Quercetin-O-galloylhexoside (isomer III) | |
| 477.9 | 459.0, 433.2, 313.2, 300.8 | Hydroxycinnamic acid-galloyl-hexoside | Zhao et al. (2013) | ||
| 463.1 | 316.1 | Myricetin-O-rhamnoside (isomer I) | |||
| 15 | 18.0 | 631.1 | 479.0, 317.0 | Myricetin-O-galloyl-hexoside (isomer III) | |
| 16 | 18.4 | 938.7 | 787.1, 769.0 | Pentagalloyl hexose | Wyrepkowski et al. (2014), Erşan et al. (2016) |
| 17 | 18.7 | 477.2 | 300.8 | Quercetin-O-glucuronide | |
| 463.4 | 316.0 | Myricetin-O-rhamnoside (isomer II) | |||
| 18 | 19 | 463.3 | 300.8 | Quercetin-O-hexoside | |
| 20 | 19.6 | 615.5 | 493.1, 465.1, 461.6, 313.2, 301.2 | Quercetin-O-galloyl hexoside (isomer IV) | Gordon et al. (2011), Erşan et al. (2016) |
| 21 | 20.3 | 599.6 | 593.2, 479.1, 463.1, 313.2 | Malic acid-digalloyl hexose | Abu-Reidah et al. (2015) |
| 22 | 21.1 | 491.3 | 314.9 | Isorhamnetin-O-glucuronide | |
| 477.6 | 314.1 | Isorhamnetin-O-hexoside | |||
| 447.3 | 300.8 | Quercetin-O-rhamnoside | |||
| 23 | 21.5 | 505.5 | 463.0, 300.7 | Quercetin-O-acetyl hexoside | |
| 26 | 22.6 | 615.6 | 463.1, 300.9, 469.0, 317.0 | Myricetin-O-galloyl rhamnoside | Saldanha et al. (2013), Abu-Reidah et al. (2015) |
| 506.2 | 462.9, 315.9, 300.9 | Myricetin-O-acetyl rhamnoside | Gordon et al. (2011) | ||
| 27 | 23.2 | 505.3 | 487.0, 444.9, 329.0, 316.1, 300.9 | Quercetin-dimethylether-O-glucuronido | Falcão et al. (2013) |
| 431.4 | 284.7 | Kaempferol-O-ramnoside |