Research Article
Metabolite Profiles of the Green Beans of Indonesian Arabica Coffee Varieties
Table 2
Concentrations of some identified metabolites determined by quantitative 1H NMR analysis.
| | No. | Compound | Metabolite concentration in green coffee beans (mM) | | Ateng (±SD) | Buhun (±SD) | Sigararutang (±SD) | value |
| | 1. | 5-CQA (δ 6.26–6.35 ppm) | 17.34 (±1.07) | 11.55 (±1.10) | 10.87 (±1.18) | 5.79-04 | | 2. | Acetic acid (δ 1.93–1.96 ppm) | 3.43 (±0.18) | 2.28 (±0.25) | 1.46 (±0.05) | 3.76-05 | | 3. | Alanine (δ 1.47–1.25 ppm) | 1.92 (±0.03) | 1.38 (±0.10) | 1.28 (±0.09) | 1.69-04 | | 4. | Caffeine (δ 7.75–7.80 ppm) | 9.42 (±0.22) | 7.09 (±0.46) | 6.01 (±0.66) | 3.62-04 | | 5. | Choline (δ 3.19–3.21 ppm) | 1.02 (±0.07) | 0.93 (±0.10) | 1.08 (±0.09) | 0.21 | | 6. | GABA (δ 3.00–3.05 ppm) | 1.87 (±0.08) | 1.75 (±0.01) | 2.35 (±0.19) | 0.002 | | 7. | Sucrose (δ 5.39–5.45 ppm) | 55.58 (±2.51) | 36.09 (±3.22) | 31.56 (±3.73) | 2.06-04 | | 8. | Trigonelline (δ 8.45–8.49 ppm) | 10.54 (±0.26) | 6.83 (±0.58) | 8.82 (±1.26) | 5.84-05 |
|
|
values are derived from one-way ANOVA. values < 0.05 mean significantly different. |
