Table 1.
Comparison among molecule concentrations considered significant by PCA analysis from RBs harvested in July, August and September. The differences in the composition were monitored from July to August and from August to September §: significant differences between July and August; †: between August and September; * p < 0.05; ** p < 0.01.
| Metabolite | (mg/100 g) | ||
|---|---|---|---|
| July | August | September | |
| Glucose | 20.0 ± 5.0 | 42.1 ± 8.6 § ** | 118 ± 50 † * |
| Myo-Inositol | 0.25 ± 0.27 | 0.50 ± 0.43 § * | 9.72 ± 1.98 † ** |
| Dopamine | 7.67 ± 0.18 | 5.60 ± 0.86 § * | 5.81 ± 2.45 |
| Glutamine | 245 ± 27 | 260 ± 34 | 250 ± 48 |
| Malonate | 3.05 ± 0.31 | 3.19 ± 0.37 | 3.46 ± 0.53 |
| Fructose | 32.2 ± 5.4 | 23.4 ± 6.5 §* | 9.38 ± 0.45 † * |
| Aspartate | 21.8 ± 3.1 | 14.5 ± 2.8 §* | 8.3 ± 1.9 † * |
| Hydroxybenzoate | 1.20 ± 0.15 | 0.97 ± 0.22 | 0.48 ± 0.15 † * |
| Citrate | 57.8 ± 6.7 | 52.2 ± 3.1 | 40.9 ± 6.7 |
| GABA | 10.06 ± 0.81 | 9.80 ± 0.92 | 9.4 ± 1.3 |
| Betanin | 56.7 ± 6.6 | 37.9 ± 4.5 § * | 23.0 ± 3.1 † * |
| Choline | 3.14 ± 0.22 | 2.29 ± 0.17 § ** | 1.63 ± 0.22 † * |
| Sucrose | 3196 ± 267 | 2514 ± 228 § * | 2049 ± 144 † * |