Table 4 Contents of six compounds in the DB samples
No. | Purchase location | Contents of six compounds (mg /g, n = 3) | |||||
|---|---|---|---|---|---|---|---|
Dracorhodin (1) | 4,6-Dihydroxy-2 -methoxy-3-methyldihydrochalcone (2) | 4,6-Dihydroxy-2-methoxy-3-methylchalcone (3) | (2S)-5,7- Dihydroxy-dihydroflavone (4) | (2S)-5-Methoxy flavan-7-ol (5) | (2S)-5-Methoxy-6-methylflavan-7-ol (6) | ||
DB1 | Hong Kong | 1.69 | 0.78 | 1.14 | 0.49 | 24.79 | 4.98 |
DB2 | Hong Kong | 0.93 | 1.11 | 0.46 | 0.47 | 21.01 | 6.60 |
DB3 | Hong Kong | 4.76 | 0.98 | 0.28 | 0.24 | 13.07 | 4.38 |
DB4 | Hong Kong | 0.77 | 0.21 | 0.06 | 0.02 | 4.18 | 3.03 |
DB5 | Hong Kong | 0.41 | 0.93 | 0.13 | 0.11 | 7.66 | 4.42 |
DB6 | Beijing | 15.71 | 10.58 | 4.22 | 2.65 | 87.94 | 23.88 |
DB7 | Chengdu | 16.46 | 5.69 | 1.36 | 1.21 | 59.32 | 20.01 |
DB8 | Chengdu | 8.49 | 2.90 | 1.27 | 0.85 | 42.67 | 11.81 |
DB9 | Chengdu | 2.64 | 7.85 | 0.26 | 1.44 | 58.78 | 13.70 |
DB10 | Tianjin | 30.24 | 17.78 | 1.84 | 3.98 | 167.64 | 47.38 |
DB11 | Tianjin | 3.04 | 4.63 | 1.96 | 1.30 | 41.78 | 23.48 |
DB12 | Jilin | 22.10 | 13.66 | 3.19 | 13.58 | 83.23 | 58.80 |