Research Article
Rapid Analysis of 18 Flavonoids in Tea by Ultrahigh-Performance Liquid Chromatography Coupled with Quadrupole-Time of Flight Mass Spectrometry
Table 4
18 Flavonoids content in 10 types of tea (ppm, n = 3).
| | Compound name | Black tea | Green tea | Others | | Congou black tea | Yellow mountain fuzz tip | Green tea 1 | Green tea 2 | Green tea 3 | Sword-shapedgreen tea | Maojian tea | Yucca tea | Taiping kowkui | Dandelion |
| | Quercitrin | 0.5595 ± 4.7 | 1.135 ± 3.3 | 1.406 ± 0.93 | 1.095 ± 2.1 | 1.263 ± 7.3 | 1.461 ± 5.2 | 1.313 ± 3.4 | 0.4325 ± 5.5 | 1.677 ± 0.8 | ND | | Myricetin | 5.480 ± 2.5 | 3.403 ± 3.2 | 3.904 ± 4.7 | 5.300 ± 2.8 | 11.15 ± 4.7 | 2.990 ± 1.9 | 3.003 ± 3.5 | 1.334 ± 4.8 | 3.511 ± 2.9 | 0.7766 ± 6.0 | | Isoliquiritigenin | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | | Silymarin | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | | Isovitexin | 13.02 ± 0.52 | 11.54 ± 5.2 | 13.74 ± 2.3 | 71.39 ± 3.9 | 11.90 ± 2.9 | 8.908 ± 4.4 | 64.90 ± 3.1 | 0.7285 ± 5.2 | 35.95 ± 7.4 | 0.7906 ± 5.2 | | Vitexin | 7.952 ± 6.9 | 4.568 ± 4.0 | 4.870 ± 4.4 | 38.82 ± 4.4 | 4.530 ± 4.7 | 2.890 ± 2.9 | 29.88 ± 3.7 | 0.2906 ± 4.3 | 14.59 ± 2.0 | ND | | Afzelin | 1.053 ± 7.7 | 3.783 ± 3.1 | 1.755 ± 2.7 | 4.131 ± 7.2 | 9.915 ± 2.1 | 2.125 ± 4.2 | 2.297 ± 0.93 | 0.2194 ± 3.5 | 5.844 ± 8.0 | 1.229 ± 4.7 | | Luteoloside | 0.5801 ± 6.5 | 17.02 ± 2.2 | 14.69 ± 0.45 | 14.14 ± 5.8 | 2.621 ± 4.2 | 21.02 ± 0.91 | 7.701 ± 1.1 | 1.621 ± 4.5 | 26.77 ± 3.4 | 44.12 ± 2.8 | | Trilobatin | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | | Schaftoside | 84.40 ± 0.86 | 62.12 ± 1.9 | 61.96 ± 2.7 | 214.4 ± 6.1 | 62.08 ± 1.6 | 50.98 ± 4.2 | 169.0 ± 3.2 | 6.912 ± 4.2 | 132.0 ± 1.7 | 0.8466 ± 6.2 | | Rutinum | 471.8 ± 1.0 | 109.5 ± 3.0 | 280.6 ± 5.5 | 342.5 ± 3.8 | 1190 ± 6.5 | 179.2 ± 2.2 | 324.1 ± 4.7 | 218.5 ± 3.2 | 150.7 ± 0.83 | 9.693 ± 4.7 | | Baimaside | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | | Tiliroside | 31.44 ± 4.4 | 59.49 ± 2.6 | 26.30 ± 6.2 | 37.97 ± 1.8 | 39.87 ± 1.8 | 67.86 ± 2.8 | 39.11 ± 4.0 | 22.34 ± 3.7 | 83.06 ± 5.2 | ND | | CamellianinA | ND | ND | ND | ND | ND | ND | ND | ND | ND | ND | | Kaempferol | 8.573 ± 3.2 | 2.308 ± 0.73 | 5.031 ± 0.91 | 8.291 ± 4.4 | 5.653 ± 0.52 | 6.883 ± 4.2 | 6.269 ± 2.7 | 3.427 ± 2.0 | 3.687 ± 4.2 | 0.3565 ± 6.0 | | Luteolin | 0.8085 ± 2.1 | 0.3146 ± 4.5 | 0.1862 ± 6.3 | 0.5200 ± 3.6 | 0.3582 ± 1.9 | 0.1850 ± 2.0 | 0.5798 ± 2.9 | 0.1507 ± 3.7 | 0.5199 ± 6.4 | 26.41 ± 7.5 | | Quercetin | 341.1 ± 4.6 | 97.43 ± 4.7 | 306.0 ± 5.2 | 293.9 ± 4.9 | 384.9 ± 6.2 | 159.6 ± 2.3 | 212.6 ± 2.1 | 141.2 ± 0.93 | 161.8 ± 1.9 | 1.076 ± 4.2 | | Plantagoside | 6.632 ± 6.9 | 42.17 ± 7.2 | 41.10 ± 5.3 | 72.30 ± 4.2 | 9.552 ± 2.9 | 47.00 ± 4.1 | 76.94 ± 2.8 | 52.85 ± 4.3 | 67.97 ± 7.2 | ND |
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