Table 3.
Assignment of 1H NMR spectral signals of the polar fraction.
| Peak number | Chemical shift (ppm) and multiplicityb,c | Assignmenta |
|---|---|---|
| 1 | 0.96 (t) | Leucine |
| 2 | 0.96, 1.05 (t) | Isoleucine |
| 3 | 1.01, 1.04 (d) | Valine |
| 4 | 1.32 (d) | Threonine |
| 5 | 1.33 (d) | Lactate |
| 6 | 1.48 (d) | Alanine |
| 7 | 2.00 (s), 2.48 (dd) | N-acetyl-aspartate |
| 8 | 2.08 (m), 2.34 (m) | Glutamate |
| 9 | 2.12 (m), 2,44 (m), 3.76 (m) | Glutamine |
| 10 | 2.18 (m), 2,57 (m), 2.98 (dd), 3.31 (dd), 3.78 (m) | Oxidized glutathione |
| 11 | 2.18 (m), 2,57 (m), 2.98 (dd), 3.78 (m), 4.58 (dd) | Reduced glutathione |
| 12 | 2.80 (dd) | Aspartate |
| 13 | 2.55 (d), 2.67 (d) | Citrate |
| 14 | 3.04 (s), 3.93 (d) | Creatine/Phosphocreatine |
| 15 | 3.23 (s) | Choline derivatives |
| 16 | 3.26 (t), 3.41 (t) | Taurine |
| 17 | 3.56 (s) | Glycine |
| 18 | 3.83 (dd), 3.98 (dd) | Serine |
| 19 | 6.10 (d), 6.14 (d), 8.18-8.22 (ov), 8.52 (s), 8.58 (s) | Nucleotides derived from adenosine AXP (AMP, ADP and/or ATP) |
| 20 | 5.95-5.99 (ov), 7.94-7.97 (ov), 8.09 (d) | Nucleotides derived from uridine UXP (UMP, UDP and/or UTP) |
| 21 | 6.01-6.20 (ov), 8.12-8.20 (ov), 8.79-8.88 (ov), 9.08-9.36 (ov) | Nicotinamide adenine dinucleotides (NAD, NADH, NADP and/or NADPH) |
| 22 | 6.99 (m), 7.20 (m) | Tyrosine |
| 23 | 8.46 (s) | Formate |