International Journal of Phytomedicine and Phytotherapy
From: Flavonoid profile and antioxidant properties of Algerian common yew (Taxus baccata L.)
N° | Proposed compounds | Molecular formula | Rt (min) | M | [M + H]+/[M-H]− (m/z) | HPLC–ESI–MS/MS (m/z) |
---|---|---|---|---|---|---|
Flavon-3-ol | ||||||
1 | (Epi)catechin-(4,8)-(epi)catechina,b | C30H26O12 | 31.00 | 578 | 577 | 451, 407, 289 |
2 | (Epi)catechin-(4,8)-(epi)gallocatechina,b | C30H26O13 | 33.66 | 594 | 593 | 407, 305, 289 |
3 | (Epi)gallocatechin-(4,8′)-(epi)gallocatechina,b | C30H26O14 | 34.07 | 610 | 609 | 423, 441, 305 |
4 | (Epi)gallocatechina,b | C15H14O7 | 34.32 | 306 | 305 | 261, 221, 219, 178.97 |
5 | Catechina,b | C15H14O6 | 35.17 | 290 | 289 | 289, 245, 205, 179 |
8 | Epicatechina,b | C15H14O6 | 45.92 | 290 | 289 | 289, 245, 205, 179 |
Flavanonol | ||||||
9 | Taxifolinb | C30H26O12 | 46.38 | 304 | 305 | 305, 287, 259 |
Flavone | ||||||
10 | Apigenin 7-O-glucosidec | C21H20O10 | 51.18 | 432 | 433 | 271 |
11 | Apigeninc | C21H20O10 | 56.51 | 270 | 271 | 271, 243, 225 |
Flavanol | ||||||
12 | Myricetin-3-O-rutinosidea,b | C27H30O17 | 62.91 | 626 | 627 | 319 |
13 | Myricetina,b | C15H10O8 | 63.44 | 318 | 319 | 319, 301, 273 |
14 | Quercetin-3-O-rutinosidea,b | C21H20O12 | 66.97 | 610 | 611 | 303 |
15 | Quercetin-7-O-glucoside a,b | C27H30O16 | 69.25 | 464 | 465 | 303 |
16 | Quercetin a,b | C15H10O7 | 70.90 | 302 | 303 | 303, 285, 257, 165 |
17 | Kaempferol 3-O-rutinosidea,b | C27H30O15 | 74.02 | 594 | 595 | 287 |
18 | kaempferol 7-O-glucosidea,b | C21H20O11 | 74.39 | 448 | 449 | 287 |
19 | kaempferola,b | C15H10O6 | 75.57 | 286 | 287 | 287, 269, 240.9 |
20 | Isorhamnetin 3-O-rutinosidec | C28H32O16 | 76.04 | 624 | 625 | 317 |
Biflavonoid | ||||||
21 | Amentoflavonea,b | C30H18O10 | 87.78 | 538 | 539 | 539, 403, 421, 377 |
22 | Robustaflavonec | C30H18O10 | 88.77 | 538 | 539 | 413, 387, 270 |
23 | Bilobetina | C31H20O10 | 90.39 | 552 | 553 | 553, 435,391, 297 |
25 | Ginkgetina | C32H20O10 | 94.47 | 566 | 567 | 567,449, 417, 405 |
26 | Sciadopitysina,b | C33H24O10 | 99.83 | 580 | 581 | 581, 549, 449, 415 |
Unidentified compounds | ||||||
6 | n.d | - | 38.59 | 155 | 156 | 155, 113, 109, 95 |
7 | n.d | - | 39.77 | 155 | 156 | 155, 113, 109, 95 |
24 | n.d | - | 93.26 | 331 | 332 | 331, 295, 267, 217 |