Table 1 Chromatographic characteristics and speculative structures of 12 kinds of anthocyanins in PSP by LC-MS/MS analysis.
Peak no. | Retention time (min) | Relative content (%) | M+ (m/z) | MS/MS (m/z) | Speculative structures |
|---|---|---|---|---|---|
1 | 9.016 | 4.41 | 773 | 611, 449, 287 | cyanidin-3-sophoroside-5-glucoside |
2 | 14.874 | 25.92 | 787 | 625, 463, 301 | peonidin-3-sophoroside-5-glucoside |
3 | 16.815 | 2.94 | 893 | 731, 449, 287 | cyanidin-3-p-hydroxy benzoylsophoroside-5-glucoside |
4 | 20.143 | 9.41 | 907 | 745, 463, 301 | peonidin-3-p-hydroxy benzoylsophoroside-5-glucoside |
5 | 20.759 | 3.07 | 949 | 787, 449, 287 | cyanidin-3-feruloylsophoroside-5-glucoside |
6 | 24.368 | 8.36 | 963 | 801, 463, 301 | peonidin-3-feruloyl sophoroside-5-glucoside |
7 | 26.034 | 3.61 | 935 | 773, 449, 287 | cyanidin-3-caffeoyl sophoroside-5-glucoside |
8 | 26.711 | 1.92 | 1055 | 893, 449, 287 | cyanidin-3-caffeoyl-p-hydroxy benzoyl sophoroside-5-glucoside |
9 | 29.273 | 2.06 | 1111 | 949, 449, 287 | cyanidin-3-caffeoyl-feruloyl sophoroside-5-glucoside |
10 | 30.841 | 18.01 | 949 | 787, 463, 301 | peonidin-3-caffeoyl sophoroside-5-glucoside |
11 | 32.809 | 8.60 | 1069 | 907, 463, 301 | peonidin-3-caffeoyl-p-hydroxy benzoyl sophoroside-5-glucoside |
12 | 35.356 | 7.76 | 1125 | 963, 463, 301 | peonidin-3-caffeoyl-feruloyl sophoroside-5-glucoside |
