Table 6.
Identification and quantification of anthocyanin composition of purple-coloured sweet potato (Ipomoea batatas L.) genotypes found in Sub-Saharan Africa by UPLC–QTOF/MS.
| RT | [M-H]− (m/z) | MSE Fragments | M-H Formula | Identified Compound | Sweet Potato Genotypes (Roots) | |||
|---|---|---|---|---|---|---|---|---|
| ‘16-283P’ | ‘08-21P’ | ‘2019-1-1′ | Purple-purple | |||||
| Concentrations in mg/kg | ||||||||
| 5.66 | 933.231 | 287.055 | C42H45O24 | Cyanidin-caffeoyl-sophoroside-glucoside | 123.12 a ± 1.13 | 18.17 c ± 0.30 | 11.54 c ± 0.75 | 47.25 b ± 1.48 |
| 7.00 | 1109.278 | 287.055 | C52H53O27 | Cyanidin-caffeoyl-feruloyl-sophoroside-glucoside | 159.22 b ± 2.79 | 151.45 b ± 3.48 | 17.91 c ± 0.52 | 230.90 a ± 1.10 |
| 6.47 | 961.263 | 301.071 | C44H49O24 | Peonidin feruloyl-sophoroside-glucoside | 301.27 b ± 1.5 | 160.03 c ±1.79 | 167.06 c ± 5.11 | 353.33 a ± 1.97 |
| 6.50 | 947.247 | 301.091 | C43H47O24 | Peonidin caffeoyl-sophoroside-glucoside | 203.34 b ± 1.46 | 28.42 c ± 1.73 | 12.71 c ± 0.95 | 327.52 a ± 1.69 |
| 6.90 | 1067.268 | 301.071 463.123 |
C50H51O26 | Peonidin-caffeoyl-hydroxybenzoyl-sophoriside-glucoside | 180.97 b ± 1.62 | 159.41 c ± 1.85 | 18.05 d ± 0.76 | 276.95 a ± 1.70 |
| 7.03 | 1123.293 | 301.071 463.124 |
C53H55O27 | Peonidin caffeoyl-feruloyl-sophoroside-glucoside | 147.9 b ± 1.75 | 19.13 c ± 0.35 | 0c | 185.25 a ± 1.16 |
Means followed by the same letter within the row are not significantly different (p < 0.05); each of the samples was replicated three times, and the results are expressed as mean ± standard deviation.