Table 4.
Phenolic compounds’ constituents identified in Opuntia ficus-indica flower extracts using microwave.
| Compounds | [M-H] | Retention Time (min) | Concentration (±SD, µg/g) |
Molecular Formula | Fragment Ions (m/z) | |
|---|---|---|---|---|---|---|
| 1 | Quinic acid | 191 | 0.80 | 109.30 ± 0.39 | C7H12O6 | 173 (87), 129 (69) 134 (58), 174 (28) |
| 2 | Coumaricacid | 163 | 2.24 | 58.06 ± 0.17 | C9H8O3 | 119 (100), 163 (22), 91 (2) |
| 3 | Piscidic acid | 255 | 2.78 | 62.65 ± 0.10 | C11H11O7 | 193 (100), 165 (48), 135 (30), 119 (18), 107 (3) |
| 4 | Eucomic acid | 239 | 3.07 | 289.25 ± 0.21 | C11H12O6 | 131 (75), 103 (5), 72 (1) |
| 5 | Isorhamnetin | 315 | 3.91 | 80.68 ± 0.10 | C16H12O7 | 315 (100), 301 (7), 297 (6), 285 (2) |
| 6 | Kaempferol-3-O-rutinoside | 593 | 4.25 | 139.03 ± 0.05 | C27H30O15 | 287 (100), 146 (7) |
| 7 | Kaempferol 3-O-arabinoside | 417 | 5.45 | 89.98 ± 0.17 | C20H18O10 | 285 (100), 227 (20), 417 (60) |
| 8 | Quercetin | 301 | 6.79 | 258.16 ± 0.01 | C15H10O7 | 273 (13), 179 (62), 151 (95), 155 (6), 121 (26) |
| 9 | Isoquercetin | 463 | 6.99 | 226.05 ± 0.05 | C21H20O12 | 301 (100), 300 (42), 179 (77) |
| 10 | Isorhamnetin 3-O-rutinoside | 623 | 7.35 | 295.14 ± 0.01 | C28H32O16 | 315 (42), 314 (100) |
| 11 | Isorhamnetin 3-O-glucoside | 477 | 7.63 | 213.45 ± 0.11 | C22H22O12 | 315 (100), 300 (80) |
| 12 | Quercetin-3-O-rutinoside | 609 | 8.11 | 265.41 ± 0.04 | C27H30O16 | 303 (100), 300 (55), 151 (12) |