Table 1.
The main taste components of oolong tea.
| Chemicals | Content (mg/g) | |||
|---|---|---|---|---|
| BT1 | BT3 | BT5 | AHT | |
| GA | 0.227 ± 0.004c | 0.252 ± 0.011b | 0.282 ± 0.003a | 0.392 ± 0.022* |
| C | 0.714 ± 0.002a | 0.727 ± 0.008a | 0.722 ± 0.013a | 0.747 ± 0.033 ns |
| GC | 2.673 ± 0.143c | 3.156 ± 0.078b | 3.376 ± 0.060a | 4.300 ± 0.095*** |
| GCG | 0.479 ± 0.010b | 0.502 ± 0.044ab | 0.539 ± 0.005a | 0.854 ± 0.054** |
| EC | 7.221 ± 0.174a | 7.073 ± 0.356a | 6.829 ± 0.148a | 6.138 ± 0.148** |
| EGC | 35.690 ± 0.049a | 35.431 ± 1.031a | 33.957 ± 0.167b | 30.365 ± 0.427*** |
| ECG | 11.802 ± 0.671a | 12.276 ± 0.420a | 11.692 ± 0.116a | 11.762 ± 0.340 ns |
| EGCG | 55.385 ± 0.237ab | 56.239 ± 1.611a | 53.441 ± 0.641b | 52.325 ± 0.886 ns |
| THB | 0.170 ± 0.004a | 0.173 ± 0.011a | 0.184 ± 0.005a | 0.174 ± 0.004 ns |
| Caffeine | 24.637 ± 0.062a | 25.506 ± 0.757a | 25.222 ± 0.159a | 25.363 ± 0.487 ns |
| l-theanine | 1.657 ± 0.558b | 3.923 ± 1.460a | 3.726 ± 0.039a | 0.715 ± 0.016*** |
Data are means (±SD) of three replicates.
BT1/3/5 represented the oolong tea samples roasted for 1/3/5 h respectively; AHT represented the oolong tea sample after the aroma-enhancing treatment.