Table 3.
The content of amino acids in different types of tea.
| Samples | The content of the amino acids (μg/g±SD) (n=3) |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Leu | Val | GABA | Phe | Gly | The | Thr | Ser | Glu | Asp | His | Total | |
| Pu-erh tea | − | − | − | 0.28±0.03 | − | 5.9±0.02 | − | − | 0.06±0.007 | − | 0.23±0.005 | 6.47 |
| Black tea | 0.11±0.01 | 0.35±0.07 | 0.10±0.01 | 0.54±0.07 | − | 14.0±0.01 | − | − | 0.42±0.03 | − | 0.36±0.03 | 15.88 |
| Oolong tea | 4.05±0.15 | 6.11±0.18 | 5.67±0.13 | 20.87±0.33 | − | 48.84±0.26 | 12.85±1.15 | 0.71±0.087 | 5.65±0.07 | 4.50±0.39 | 2.26±0.24 | 111.51 |
| Green tea | ||||||||||||
| Maojian | 8.15±0.05 | 10.82±0.22 | 2.37±0.03 | 20.5±0.32 | − | 97.95±0.49 | 12.69±0.32 | 1.09±0.71 | 17.33±0.17 | 30.05±0.95 | 12.42±0.37 | 213.39 |
| Biluochun | 2.46±0.13 | 1.82±0.10 | 2.32±0.08 | 18.8±0.16 | − | 176.92±1.08 | 14.92±0.38 | 4.98±0.22 | 41.47±0.63 | 10.31±0.19 | 12.76±0.05 | 286.81 |
| Longjing | 12.23±0.36 | 16.23±0.37 | 14.33±0.67 | 21.2±0.23 | − | 136.65±1.15 | 17.07±1.92 | 7.39±0.61 | 20.23±0.77 | 30.44±0.56 | 52.81±0.19 | 328.65 |