Table 2.
The caffeine content in coffee bean samples from three districts.
| Sample | Average AUC | Concentration (ppm) | % Level |
|---|---|---|---|
| Coffee Bean Samples from Garut | |||
| Non decaffeinated | 77,794 ± 117 | 1163.56 ± 541.11 | 1.45 ± 0.05 |
| decaffeinated one times | 14,293 ± 26 | 175.38 ± 374.46 | 0.22 ± 0.008 |
| decaffeinated two times | 3829 ± 45 | 12.54 ± 042.32 | 0.016 ± 0.004 |
| decaffeinated three times | 3025 ± 22 | 0.016 ± 0.005.52 | 0.00002 ± 0.00 |
| Coffee Bean Samples from Pangalengan | |||
| Not decaffeinated | 83,924 ± 136.67 | 1258.95 ± 45.21 | 1.57 ± 0.88 |
| decaffeinated one times | 19,598 ± 177.48 | 257.92 ± 67.02 | 0.32 ± 0.05 |
| decaffeinated two times | 8686 ± 660.96 | 88.12 ± 14.33 | 0.11 ± 0.02 |
| decaffeinated three times | 55,716 ± 150.03 | 39.64 ± 11.54 | 0.049 ± 0.01 |
| Coffee Bean Samples from Tasikmalaya | |||
| Not decaffeinated | 120,244 ± 115.45 | 1824.16 ± 32.22 | 2.28 ± 0.05 |
| decaffeinated one times | 26,606 ± 98.20 | 366.98 ± 43.14 | 0.46 ± 0.01 |
| decaffeinated two times | 8292 ± 56.78 | 81.98 ± 13.08 | 0.10 ± 0.01 |
| decaffeinated three times | 3523 ± 45.67 | 7.77 ± 09.01 | 0.097 ± 0.00 |