Table 6. Flavonoid components in different-colored fruit peels of 62 Prunus humilis accessions.
| Accession name | Peel color | Color index | CC (mg/100 g FW) | EC (mg/100 g FW) | LG (mg/100 g FW) | C3G (mg/100 g FW) | RT (mg/100 g FW) | Q3G (mg/100 g FW) |
|---|---|---|---|---|---|---|---|---|
| 3-17-4 | Red | 188.71 | 81.12±2.51 | 9.11±1.11 | 1.52±0.01 | 23.47±0.15 | 1.95±0.02 | 2.63±0.04 |
| JD1-6-7-37 | Red | 75.01 | 120.81±5.41 | 15.32±1.32 | 1.28±0.02 | 31.38±0.71 | 1.95±0.01 | 3.43±0.05 |
| 10–02 | Red-orange | 24.13 | 53.64±2.29 | 3.03±0.26 | 1.61±0.08 | - | 2.13±0.08 | 2.90±0.04 |
| 3-17-2 | Red | 93.40 | 116.43±3.82 | 11.73±0.91 | 1.60±0.07 | 24.02±0.45 | 2.55±0.09 | 3.45±0.08 |
| 3-60-2-8 | Light red | 38.96 | 64.47±1.21 | 10.12±0.54 | 1.24±0.04 | - | 2.89±0.11 | 4.65±0.15 |
| TWS | Red | 112.08 | 84.87±1.98 | 8.53±1.52 | 1.67±0.03 | 47.73±0.60 | 2.14±0.03 | 3.08±0.01 |
| K1 | Red | 79.88 | 119.89±4.96 | 20.47±3.46 | 1.59±0.02 | 17.36±0.13 | 2.26±0.03 | 3.26±0.01 |
| Y09-15 | Red | 54.01 | 81.37±1.55 | 9.02±0.98 | 1.28±0.02 | 36.20±0.74 | 2.30±0.04 | 3.62±0.02 |
| 3-17-5 | Red-orange | 15.69 | 54.68±4.44 | 4.06±0.87 | 1.12±0.03 | - | 2.20±0.08 | 2.85±0.03 |
| 99–02 | Red-orange | 12.04 | 68.67±3.23 | 5.15±0.05 | 1.68±0.04 | - | 2.22±0.01 | 3.66±0.10 |
| DG-41 | Red | 60.71 | 83.82±2.24 | 3.48±0.42 | 1.41±0.02 | 27.75±0.94 | 2.09±0.02 | 3.17±0.04 |
| 19–09 | Red-orange | 28.17 | 60.12±0.86 | 14.17±1.01 | 1.22±0.02 | - | 1.89±0.01 | 2.80±0.03 |
| Y04-27 | Yellow | 5.15 | 65.30±3.26 | 2.99±0.10 | 1.16±0.01 | - | 2.43±0.05 | 4.29±0.13 |
| 08–16 | Yellow | 1.88 | 68.00±2.14 | 4.41±0.21 | 1.29±0.01 | - | 2.05±0.05 | 2.79±0.02 |
| XZ-2 | Light red | 74.25 | 52.55±2.21 | 2.69±0.01 | 1.21±0.03 | - | 1.97±0.02 | 2.81±0.01 |
| 02–17 | Light red | 11.66 | 39.64±2.15 | 2.96±0.28 | 1.25±0.02 | - | 1.91±0.03 | 2.94±0.15 |
| Y14-26 | Red | 90.02 | 49.92±0.57 | 4.49±0.34 | 1.25±0.02 | 21.18±0.63 | 1.60±0.01 | 2.45±0.01 |
| JO-1 | Dark red | 454.33 | 45.61±2.00 | 5.97±0.26 | 1.29±0.02 | 139.78±1.91 | 2.10±0.02 | 3.46±0.07 |
| 19–04 | Red | 67.29 | 52.26±2.42 | 7.46±0.78 | 1.28±0.03 | 43.5±2.50 | 1.92±0.06 | 3.93±0.13 |
| JO-2 | Dark red | 576.91 | 57.46±4.57 | 9.17±1.13 | 1.33±0.03 | 143.11±4.51 | 2.41±0.06 | 3.52±0.15 |
| Y07-14 | Red-orange | 7.03 | 45.83±1.16 | 2.75±0.07 | 1.49±0.01 | 15.24±0.01 | 1.95±0.08 | 2.97±0.04 |
| JO2H | Red | 124.17 | 51.56±4.48 | 3.40±0.30 | 1.37±0.04 | 68.81±2.07 | 2.27±0.02 | 3.55±0.05 |
| 19–06 | Red | 97.38 | 38.85±1.60 | 2.12±0.07 | 1.19±0.01 | 38.51±1.63 | 1.87±0.02 | 2.58±0.02 |
| 01–01 | Red-orange | 15.68 | 52.36±2.20 | 5.33±0.32 | 1.63±0.03 | - | 2.00±0.01 | 3.31±0.04 |
| 19–03 | Red-orange | 16.43 | 63.88±5.67 | 3.37±0.08 | 1.95±0.04 | - | 1.94±0.05 | 3.44±0.17 |
| Y05-17 | Red-orange | 25.75 | 59.85±1.96 | 6.26±0.63 | 1.13±0.01 | - | 1.73±0.05 | 2.71±0.01 |
| X17-01 | Red | 36.79 | 39.81±4.63 | 3.25±0.12 | 1.58±0.04 | 20.63±2.94 | 2.08±0.03 | 2.89±0.03 |
| 03–38 | Red-orange | 8.84 | 33.66±0.57 | 2.94±0.16 | 1.39±0.02 | - | 1.71±0.04 | 2.54±0.06 |
| 03–25 | Red | 256.74 | 60.25±0.64 | 5.32±0.25 | 1.28±0.01 | 58.67±1.81 | 2.09±0.05 | 3.26±0.10 |
| 19–07 | Red-orange | 11.73 | 37.96±3.91 | 3.66±0.82 | 1.05±0.02 | 23.82±0.89 | 1.88±0.02 | 3.99±0.04 |
| 15–02 | Red | 53.33 | 31.57±2.31 | 3.64±0.28 | 1.17±0.01 | 20.89±1.79 | 1.92±0.01 | 3.01±0.04 |
| 09–19 | Yellow | 3.24 | 46.44±2.00 | 3.70±0.08 | 1.51±0.04 | - | 1.85±0.03 | 3.21±0.03 |
| 11-20M | Red | 83.14 | 35.85±2.76 | 4.99±0.43 | 1.38±0.03 | 15.9±1.27 | 3.25±0.02 | 3.05±0.12 |
| JHY | Red | 69.14 | 31.84±3.07 | 3.44±0.21 | 1.19±0.01 | 23.05±0.22 | 1.84±0.05 | 2.76±0.01 |
| 10–33 | Red | 108.92 | 29.61±0.87 | 3.25±0.31 | 1.10±0.03 | 42.45±3.37 | 1.89±0.06 | 2.65±0.05 |
| Y08-22 | Red | 59.99 | 34.03±2.73 | 2.05±0.11 | 1.09±0.03 | 34.87±1.88 | 1.63±0.04 | 2.66±0.04 |
| Y03-10 | Red | 72.73 | 31.01±1.61 | 3.51±0.07 | 1.11±0.01 | 45.51±1.09 | 2.17±0.03 | 3.10±0.08 |
| 10–06 | Yellow | 5.92 | 28.05±2.47 | 2.08±0.10 | 1.46±0.69 | - | 1.58±0.01 | 2.92±0.02 |
| DG-7 | Red | 66.92 | 36.75±1.94 | 3.01±0.38 | 1.36±0.01 | 17.93±0.04 | 2.22±0.01 | 3.12±0.06 |
| JO1H | Red | 90.12 | 42.69±3.95 | 2.93±0.02 | 1.35±0.03 | 28.93±1.02 | 2.08±0.03 | 2.81±0.03 |
| F3-1 | Red-orange | 47.75 | 39.46±1.01 | 2.84±0.08 | 1.19±0.02 | - | 1.83±0.04 | 2.70±0.01 |
| J-2 | Yellow | 5.58 | 38.43±1.78 | 2.26±0.01 | 1.29±0.03 | - | 2.00±0.06 | 3.98±0.09 |
| 15–01 | Red-orange | 22.34 | 36.34±1.07 | 2.82±0.07 | 1.54±0.04 | - | 1.99±0.03 | 2.86±0.04 |
| 11–07 | Dark red | 2802.48 | 18.69±1.38 | 4.11±0.60 | 1.43±0.03 | 231.18±8.98 | 1.70±0.01 | 3.92±0.09 |
| M19-4 | Red | 42.75 | 25.29±0.08 | 1.98±0.05 | 1.56±0.03 | 18.94±0.21 | 1.59±0.01 | 2.70±0.18 |
| GS-2 | Red | 92.73 | 27.43±0.63 | 3.72±0.12 | 1.21±0.01 | 38.69±1.37 | 1.75±0.03 | 2.62±0.05 |
| 3-17-1 | Red | 73.81 | 31.61±1.32 | 2.97±0.21 | 1.46±0.06 | 29.33±1.34 | 2.54±0.07 | 3.03±0.08 |
| DS-1 | Light red | 31.73 | 21.43±0.48 | - | 1.37±0.08 | 18.33±0.20 | 1.84±0.01 | 2.39±0.06 |
| 03–35 | Red | 109.86 | 28.37±1.23 | 3.23±0.05 | - | 33.55±1.12 | - | 2.67±0.03 |
| 13–05 | Red-orange | 36.04 | 32.70±0.97 | 2.55±0.03 | 1.22±0.02 | - | 1.57±0.04 | 2.63±0.05 |
| XZ-1 | Red | 163.45 | 28.97±1.40 | 3.56±0.93 | 1.55±0.01 | 17.87±0.90 | 1.67±0.04 | 3.32±0.03 |
| 16-10M | Light red | 45.82 | 28.56±2.85 | 2.10±0.04 | 1.63±0.09 | - | 1.75±0.10 | 2.68±0.06 |
| 19–05 | Yellow | 3.12 | 28.51±1.44 | - | - | - | 2.07±0.04 | 3.59±0.15 |
| Ft-1 | Red | 49.98 | 24.63±0.93 | 2.55±0.03 | - | 18.77±0.06 | - | - |
| 10–03 | Red | 106.06 | 24.86±1.60 | 2.72±0.12 | - | 32.68±1.57 | 1.77±0.02 | 3.30±0.12 |
| Y13-09 | Yellow | 7.04 | 18.74±2.01 | 2.24±0.08 | - | - | - | 2.62±0.04 |
| S-D-1 | Red | 81.85 | 24.18±0.76 | - | - | 22.94±0.58 | 1.86±0.02 | 2.86±0.04 |
| 15–51 | Red | 104.05 | 29.10±1.57 | 2.78±0.55 | 1.08±0.01 | 69.1±3.81 | 1.60±0.02 | 2.87±0.06 |
| 628 | Dark red | 2601.90 | 15.76±0.30 | - | 1.45±0.04 | 149.16±3.56 | 1.67±0.01 | 3.42±0.05 |
| 08–24 | Red | 98.57 | 17.49±0.04 | 2.16±0.04 | - | 16.03±0.08 | 1.60±0.01 | 2.50±0.01 |
| HB-6 | Yellow | 1.12 | 29.06±0.74 | 2.76±0.04 | 1.23±0.04 | - | 1.80±0.01 | 2.51±0.01 |
| T17-1 | Red | 69.61 | 26.83±0.64 | 2.61±0.5 | - | 20.42±0.24 | - | - |
| F-value | 281.63** | 83.57** | 11.38** | 1277.93** | 167.39** | 130.14** |
Note: F-value and ** indicate significance at P < 0.01. Data are means ± SD. CC, catechin; EC, epicatechin; LR, liquiritigenin; RT, rutin; Q3G, quercetin-7-O-β-D-glucopyranoside; C3G, cyanidin-3-O-glucoside.