Table 2.
Profile of phenolic compounds identified by UPLC-DAD-ESI-TQ-MS analysis for apple and plum samples.
| No. | Tentative Identification | tR (min) | λmax (nm) | [M − H]− | Formula | MS2 Fragments (% Abundance) | Apple Anna Skin | Apple Anna Flesh | Plum Satsuma Skin | Plum Satsuma Flesh |
|---|---|---|---|---|---|---|---|---|---|---|
| Proanthocyanidins | ||||||||||
| 1 | Procyanidin B-type dimer | 2.69 | 277 | 577.1344 | C30H26O12 | [577]: 289(28), 407(79), 425(100), 451(49), 559(66) | x | |||
| 3 | (epi)catechin 3-O-gallate | 3.96 | 284 | 441.0818 | C22H18O10 | [441]: 153(31), 289(35), 315(100) | x | x | x | |
| 4 | (epi)catechin 3-O-gallate | 5.40 | 284 | 441.0819 | C22H18O10 | [441]: 153(32), 289(28), 315(100) | x | |||
| 8 | Procyanidin B-type dimer | 8.44 | 279 | 577.1344 | C30H26O12 | [577]: 289(50), 407(70), 425(100), 451(80), 559(42) | x | x | ||
| 9 | Catechin | 8.87 | 289 | 289.0709 | C15H20O6 | [289]: 205(38),245(100) | x | x | ||
| 13 | Procyanidin B-type dimer | 12.75 | 282 | 577.1344 | C30H26O12 | [577]: 289(35), 407(57), 425(100), 451(56), 559(28) | x | x | x | x |
| 14 | Procyanidin B-type trimer | 13.20 | 282 | 865.1956 | C45H38O18 | [865]: 577(43), 695(100), 713(39), 739(60) | x | |||
| 15 | Epicatechin | 13.97 | 280 | 289.0707 | C15H14O6 | [289]: 205(35), 245(100) | x | x | x | x |
| 22 | Procyanidin B-type trimer | 17.88 | 279 | 865.1956 | C45H38O18 | [865]: 577(54), 695(100), 713(37), 739(71) | x | x | ||
| 23 | Procyanidin B-type trimer | 18.16 | 278 | 865.1956 | C45H38O18 | [865]: 577(61), 695(100), 713(33), 739(67) | x | x | ||
| 24 | Procyanidin A-type trimer | 18.98 | 278 | 863.1798 | C45H36O18 | [863]: 575(100), 711(63) | x | x | ||
| 25 | Procyanidin A-type trimer | 19.37 | 277, 517 | 863.1798 | C45H36O18 | [863]: 575(100), 711(63) | x | |||
| 26 | Procyanidin B-type tetramer | 19.70 | 279, 517 | 1153.2603 | C60H50O24 | [1153]: 575(43), 577(46), 863(62), 865(100), 983(87), 1001(37), 1027(66) | x | x | x | |
| 27 | Procyanidin B-type pentamer | 20.54 | 280 | 1441.3229 | C75H62O30 | [1441]: 1315(43), 1151(70), 863(68), 635(100), 577(40) | x | |||
| 28 | Procyanidin B-type trimer | 21.23 | 279 | 865.1956 | C45H38O18 | [865]: 407(45), 577(59), 695(100), 713(66), 739(73) | x | x | ||
| 29 | Procyanidin B-type pentamer | 21.83 | 278 | 1441.3229 | C75H62O30 | [1441]: 1315(33), 1151(69), 863(95), 635(100), 577(60) | x | |||
| 30 | Procyanidin B-type trimer | 22.21 | 279 | 865.1956 | C45H38O18 | [865]: 575(46), 577(53), 695(100), 713(44), 739(84) | x | |||
| 31 | Procyanidin A-type trimer | 23.54 | 282 | 863.1798 | C45H36O18 | [863]: 575(100), 711(58) | x | |||
| 36 | Procyanidin A-type dimer | 25.19 | 279 | 575.1185 | C30H24O12 | [575]: 289(35), 449(100) | x | x | x | |
| 38 | Procyanidin B-type dimer | 27.21 | 276 | 577.1344 | C30H26O12 | [577]: 289(34), 407(60), 425(100), 451(78), 559(31), | x | |||
| 42 | Procyanidin B-type dimer | 28.62 | 279 | 577.1344 | C30H26O12 | [577]: 289(50), 407(65), 425(100), 451(76), 559(44) | x | |||
| Glycosylated flavonols | ||||||||||
| 18 | Kaempferol-hexoside | 14.97 | 280, 351 | 447.0922 | C21H20O11 | [447]: 284(70), 285(100) | x | |||
| 19 | Kaempferol-hexoside | 15.90 | 278, 360, 516 | 447.0922 | C21H20O11 | [447]: 284(23), 285(100) | x | |||
| 32 | Naringenin-hexoside | 23.97 | 278, 351 | 433.1131 | C21H22O10 | [433]: 271(100) | x | |||
| 33 | Quercetin-pentosylhexoside | 24.12 | 279, 351 | 595.1284 | C26H28O16 | [595]: 300(100), 301(41) | x | |||
| 34 | Quercetin-pentosylhexoside | 24.72 | 281, 357 | 595.1284 | C26H28O16 | [595]: 300(100), 301(40) | x | |||
| 37 | Quercetin-hexoside | 26.57 | 255, 350 | 463.0875 | C21H20O12 | [463]: 300(36), 301(100) | x | |||
| 40 | Quercetin-rutinoside | 27.60 | 255, 360 | 609.1440 | C27H30O16 | [609]: 300(31), 301(100) | x | x | x | x |
| 41 | Quercetin-hexoside | 27.79 | 252, 351 | 463.0875 | C21H20O12 | [463]: 300(28), 301(100) | x | x | x | |
| 43 | Quercetin-pentoside | 29.28 | 258, 355 | 433.0769 | C20H18O11 | [433]: 300(29), 301(100) | x | x | x | |
| 46 | Quercetin-pentoside | 30.69 | 258, 347 | 433.0769 | C20H18O11 | [433]: 301(100) | x | |||
| 47 | Quercetin-pentosylpentoside | 31.21 | 258, 354 | 565.1184 | C25H26O15 | [565]: 300(100), 301(16) | x | |||
| 48 | Quercetin-deoxyhexoside | 32.46 | 355 | 447.0922 | C21H20O11 | [447]: 300(26), 301(100) | x | |||
| 49 | Quercetin-deoxyhexoside | 32.57 | 284 | 447.0922 | C21H20O11 | [447]: 300(30), 301(100) | x | |||
| 51 | Quercetin-deoxyhexoside | 33.27 | 281 | 447.0922 | C21H20O11 | [447]: 300(30), 301(100) | x | |||
| 52 | Quercetin-acetylhexoside | 33.51 | 354 | 505.0975 | C23H22O13 | [505]: 300(63), 301(100) | x | |||
| Acids and derivates | ||||||||||
| 2 | Protocatechuic acid | 3.36 | 280 | 153.0191 | C7H6O4 | [153]: 109(100) | x | x | ||
| 5 | Caffeoylquinic acid isomer | 5.95 | 323 | 353.0869 | C16H18O9 | [353]: 191(100), 179(71) | x | x | ||
| 6 | Caffeoyl hexoside | 7.23 | 331 | 341.0872 | C15H18O9 | [341]: 161(37), 179(100) | x | x | ||
| 7 | Coumaric acid | 8.30 | 313 | 163.0398 | C9H6O3 | [163]: 119(100) | x | |||
| 10 | p-coumaroyl-hexoside | 9.94 | 297 | 325.0921 | C15H18O8 | [325]: 145(100), 163(92), 187(49) | x | x | ||
| 11 | p-coumaroyl-hexoside | 10.27 | 314 | 325.0921 | C15H18O8 | [325]: 145(100), 163(87), 187(50) | x | x | x | |
| 12 | Caffeoylquinic acid isomer | 11.10 | 270, 313 | 353.0869 | C16H19O9 | [353]: 191(100), 145(46) | x | x | ||
| 16 | Shikimic acid | 14.44 | 316 | 173.0454 | C7H10O5 | [173]: 93(100),111(43) | x | |||
| 17 | p-coumaroylquinic acid | 14.49 | 311 | 337.0927 | C16H18O8 | [337]: 173(100) | x | |||
| Chalcones | ||||||||||
| 35 | 3-hydroxyphloretin-pentosylhexoside | 24.87 | 281 | 583.1660 | C26H32O15 | [583]: 289(100) | x | x | ||
| 39 | 3-hydroxyphloretin | 27.29 | 283 | 289.0716 | C15H14O6 | [289]: 167(100), 245(49), 271(81) | x | |||
| 44 | Phloretin-pentosilhexoside | 30.11 | 284 | 567.1704 | C26H32O14 | [567]: 273(100) | x | x | ||
| 45 | Phloretin-pentosilhexoside | 31.04 | 283 | 567.1704 | C26H32O14 | [567]: 273(100) | x | |||
| 50 | Phloretin | 32.78 | 283 | 273.0767 | C15H14O5 | [273]: 167(100) | x | x | ||
| Other compounds | ||||||||||
| 20 | Vomifoliol-pentosilhexoside | 16.80 | 281 | 517.2280 | C24H38O12 | [517]: 205(100), 385(58) | x | x | ||
| 21 | Vomifoliol-pentosilhexoside | 17.10 | 281 | 517.2280 | C24H38O12 | [517]: 205(100), 385(64) | x | x | ||