Table 1.
Phenolic compounds identified and quantified in the pulp and peel of peach fruit samples. The table reports the retention time, mass-to-charge ratio, mass fragmentation pattern, chemical formula, international identification number and the name of the identified molecules. The number listed in the first column refers to the chemical structure of each molecule shown in Figure 4.
| No. | RT | m/z | MS/MS | Chemical Formula | CAS-ID | Chemical Name |
|---|---|---|---|---|---|---|
| 1 | 12.6 | 451 | 319 | C21H22O12 | n.a. | Dihydromyricetin-3-O-glucoside |
| 2 | 13.3 | 289 | 261; 245 | C15H14O6 | 7295-85-4 | Catechin |
| 3 | 13.5 | 595 | 510.3; 426.4; 342.3; 271.6 | C27H32O14 | 14259-46-2 | Naringenin-7-O-rutinoside |
| 4 | 14.2 | 575 | 557; 439; 289 | C30H24O12 | 41743-41-3 | PAC-A type dimer |
| 5 | 14.3 | 289 | 261; 245 | C15H14O6 | 490-46-0 | Epicatechin |
| 6 | 15.8 | 431 | 395; 329; 293 | C21H20O10 | n.a. | Luteolin-7-O-rhamnoside |
| 7 | 15.8 | 447 | 400.8; 285 | C21H20O11 | 480-10-4 | Kaempferol-3-O-glucoside |
| 8 | 15.8 | 461 | 414.7; 291.7 | C21H18O12 | 22688-78-4 | Kaempferol-3-O-glucuronide |
| 9 | 16.9 | 447 | 400.8; 285 | C21H20O11 | 23627-87-4 | Kaempferol-3-O-galactoside |
| 10 | 17.4 | 461 | 414.7; 340.7; 298.7 | C21H18O12 | 29741-10-4 | Luteolin-7-O-glucuronide |
| 11 | 18.2 | 431 | 384.8; 285 | C21H20O10 | 482-39-3 | Kaempferol-3-O-rhamnoside |
| 12 | 20.2 | 577 | 531; 289 | C30H26O12 | 20315-25-7 | PAC-B type dimer |
| 13 | 22.7 | 403 | 356.7; 294.7271 | C21H22O10 | 529-55-5 | Naringenin-7-O-glucoside |
| 14 | 23.6 | 447 | 404.7; 319; 243.2 | C21H20O11 | 1237479-07-0 | Naringenin-7-O-glucuronide |
| 15 | 24.3 | 613 | 571; 553; 289 | C27H34O16 | 105330-54-9 | Catechin 3′,5-diglucoside |
| 16 | 25.0 | 300 | 239 | C16H14O6 | 520-33-2 | Hesperetin |
| 17 | 26.8 | 595 | 534.8; 287 | C27H32O15 | 13463-28-0 | Eriodictyol 7-O-rutinoside |
| 18 | 27.5 | 593 | 344.7; 285.2; 272.6 | C27H30O15 | 20633-84-5 | Luteolin 7-O-Rutinoside |
| 19 | 27.7 | 609 | 562.8; 462.7; 300.7 | C27H30O16 | 250249-75-3 | Quercetin-3-O-rutinoside |
| 20 | 27.9 | 595 | 463; 449; 287 | C27H32O15 | 13241-32-2 | Eriodictyol 7-O-neohesperidoside |
| 21 | 28.3 | 463 | 301.8 | C21H20O12 | 482-36-0 | Quercetin-3-O-galactoside |
| 22 | 28.8 | 463 | 301.7 | C21H20O12 | 482-35-9 | Quercetin-3-O-glucoside |
| 23 | 28.8 | 465 | 418.8; 396.6; 302.7 | C21H22O12 | n.a. | Dihydroquercetin-3-O-galactoside |
| 24 | 29.4 | 303 | 285; 257 | C15H12O8 | 27200-12-0 | Dihydromyricetin |
| 25 | 30.4 | 465 | 418.8; 396.6; 302.7 | C21H22O12 | 27297-45-6 | Dihydroquercetin-3-O-glucoside |
| 26 | 34.8 | 609 | 562.9; 301.4 | C28H34O15 | 520-26-3 | Hesperetin 7-O-rutinoside |
| 27 | 35.0 | 301 | 273; 273; 257 | C15H10O7 | 6151-25-3 | Quercetin |
| 28 | 37.6 | 285 | 241 | C15H10O6 | 491-70-3 | Luteolin |
| 29 | 37.8 | 285 | 269; 257 | C15H10O6 | 520-18-3 | Kaempferol |
| 30 | 37.9 | 287 | 269; 231 | C15H12O6 | 104486-98-8 | Dihydrokaempferol |
| 31 | 38.4 | 315 | 299; 271 | C16H12O7 | 480-19-3 | 3′-O-Methylquercetin |
| 32 | 39.0 | 449 | 417; 387; 319: 287.2 | C21H22O11 | 38965-51-4 | Eriodictyol 7-O-glucoside |
| 33 | 39.4 | 287 | 269; 241 | C15H12O6 | 552-58-9 | Eriodictyol |
| 34 | 45.4 | 271 | 243; 221 | C15H12O5 | 480-41-1 | Naringenin |
| 35 | 46.7 | 623 | 554.9; 528.9; 315.4 | C28H32O16 | 604-80-8 | Isorhamnetin-3-O-rutinoside |
| 36 | 54.2 | 865 | 575; 557; 439; 289 | C45H38O18 | 37064-30-5 | PAC-A type trimer |
| 37 | 56.3 | 865 | 577; 863; 531; 289 | C45H38O18 | 37064-31-6 | PAC-B type tetramer |
RT: retention time; m/z: charge-to-mass ratio; MS/MS: mass-to-mass fragmentation pattern; CAS-ID: Chemical Abstracts Service Identification number; n.a.: not available.