Table 3.
Tentative identification of different anthocyanins in the blueberry varieties analysed.
| Retention Time (min) |
Compounds | Molecular Formula (M+) | Calculated Mass (m/z) | Accurate Mass (m/z) | Error (ppm) | MS/MS Fragments | Variety |
|---|---|---|---|---|---|---|---|
| 4.03 | Delphinidin-3-O-galactoside | C21H21O12 | 465.1028 | 465.1023 | −1.0441 | 303.0501 | A; B; C; D |
| 4.30 | Delphinidin-3-O-glucoside * | C21H21O12 | 465.1028 | 465.1025 | −0.4535 | 303.0502 | A; B; C; D |
| 4.44 | Cyanidin-3-galactoside * | C21H21O11 | 449.1078 | 449.1073 | −1.1349 | 287.0552 | A; B; C; D |
| 4.47 | Delphinidin-3-O-arabinoside | C20H19O11 | 435.0922 | 435.0918 | −0.8334 | 303.0501 | A; B; C; D |
| 4.60 | Cyanidin-3-O-glucoside * | C21H21O11 | 449.1078 | 449.1073 | −1.1349 | 287.0543 | A; B; C; D |
| 4.65 | Petunidin-3-O-galactoside | C22H23O12 | 479.1184 | 479.1180 | −0.9383 | 317.0658 | A; B; C; D |
| 4.68 | Cyanidin-3-O-rutinoside | C27H31O15 | 595.1658 | 595.1650 | −1.1945 | 449.10784/ 287.05501 | D |
| 4.73 | Cyanidin-3-O-arabinoside | C20H19O10 | 419.0973 | 419.0968 | −1.1173 | 287.0550 | A; B; C; D |
| 4.76 | Petunidin-3-O-glucoside | C22H23O12 | 479.1184 | 479.1179 | −1.1346 | 317.0645 | A; B; C; D |
| 7.77 | Petunidin-3-O-rutinoside | C28H33O16 | 625.1763 | 625.1766 | 0.4215 | 479.1180 | D |
| 4.89 | Peonidin-3-O-galactoside | C22H23O11 | 463.1235 | 463.1230 | −1.1500 | 301.0708 | A; B; C; D |
| 4.89 | Petunidin-3-O-arabinoside | C21H21O11 | 449.1078 | 449.1073 | −1.1300 | 317.0656 | A; B; C; D |
| 4.99 | Malvidin-3-O-galactoside | C23H25O12 | 493.1341 | 493.1335 | −1.0913 | 331.0812 | A; B; C; D |
| 4.99 | Peonidin-3-O-glucoside * | C22H23O11 | 463.1235 | 463.1231 | −0.7546 | 301.0694 | A; B; C; D |
| 5.04 | Peonidin-3-O-rutinoside | C28H33O15 | 609.1814 | 609.1804 | −1.7904 | 301.0691 | A; B; C; D |
| 5.10 | Malvidin-3-O-glucoside * | C23H25O12 | 493.1341 | 493.1336 | −0.8437 | 331.0802 | A; B; C; D |
| 5.19 | Cyanidin-3-(6″-acetyl) galactoside | C23H23O12 | 491.1184 | 491.1181 | −0.6047 | 287.0551 | A; C |
| 5.22 | Malvidin-3-O-arabinoside | C22H23O11 | 463.1235 | 463.1231 | −0.9568 | 331.0813 | A; B; C; D |
| 5.33 | Delphinidin-3-(6″-acetyl) glucoside | C23H23O13 | 507.1133 | 507.1133 | −0.7986 | 303.0497 | A |
| 5.33 | Petunidin-3-(6″-acetyl) galactoside | C24H25O13 | 521.1290 | 521.1236 | −1.1710 | 317.0657 | A; B; D |
| 5.39 | Cyanidin-3-(6-acetyl) glucoside | C23H23O12 | 491.1184 | 491.1182 | −0.3561 | 287.0551 | A; C; D |
| 5.47 | Malvidin-3-(6″-acetyl) galactoside | C25H27O13 | 535.1145 | 535.1441 | −0.9590 | 331.0801 | D |
| 5.48 | Petunidin-3-(6″-acetyl) glucoside | C24H25O13 | 521.1290 | 521.1289 | −0.2340 | 317.0651 | A; B; C; D |
| 5.53 | Peonidin-3-(6″-acetyl) glucoside | C24H25O12 | 505.1341 | 505.1343 | 0.4501 | 301.0707 | A; B; C; D |
| 5.58 | Delphinidin-3-(6″-malonyl) glucoside | C24H23O15 | 551.1032 | 551.1034 | 0.4419 | 303.0501 | A; B; D |
* Identified with pure standards; A: Star; B: Snowchaser; C: Cristina Blue and D: Stella Blue.