Table 3.
The phenolic profiles in U. dioica extracts (mg per g of dry extract) [20].
| Group of Compounds | Compound | Origin | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Fruska Gora I/II | Stara Planina | ||||||||
| Flowers | Leaves | Steams | Roots | Flowers | Leaves | Steams | Roots | ||
| Phenolic acids | p-Hydroxybenzoic acid | 0.064/0.017 | 0.037/0.021 | 0.021/0.023 | 0.032/0.029 | 0.036 | 0.051 | 0.014 | 0.048 |
| Gentisic acid | 0.0096/0.0044 | 0.0034/0.0082 | not det/det | not det/0.036 | not det | det | not det | not det | |
| Protocatechuic acid | 0.070/0.032 | 0.48/0.16 | not det/0.014 | not det/0.015 | 0.022 | 0.072 | 0.0069 | 0.0106 | |
| Vanillic acid | det */not det ** | not det/det | not det/not det | not det/det | not det | not det | not det | 0.09 | |
| Quinic acid | 1.6/0.27 | 0.3/0.36 | 0.047/0.039 | 0.1/0.31 | 0.86 | 0.66 | 0.088 | 0.36 | |
| Ferulic acid | 0.071/0.09 | 0.009/0.013 | 0.031/0.061 | 0.011/0.028 | 0.05 | 0.052 | 0.024 | 0.024 | |
| p -Coumaric acid | not det/0.0105 | not det/not det | 0.24/0.38 | 0.12/02 | 0.022 | 0.026 | 0.18 | 0.23 | |
| Caffeic acid | 0.48/0.41 | 0.21/0.29 | 0.0053/0.033 | det/0.0118 | 0.64 | 0.93 | 0.031 | 0.0039 | |
| 5-O-Caffeolylquinic acid | 36/15.8 | 1.23/2.7 | 0.29/1.87 | 0.056/0.029 | 35 | 28 | 2.3 | 0.025 | |
| Coumarins | Esculetin | 0.041/0.0078 | 0.0120/0.0125 | 0.015/0.019 | det/0.0047 | 0.0095 | 0.0074 | det | det |
| Scopoletin | 0.103/0.018 | 0.12/0.21 | 0.026/0.054 | 0.076/0.11 | 0.04 | 0.073 | 0.048 | 0.18 | |
| Lignans | Secoisolariciresinol | not det/not det | not det/not det | not det/not det | det/0.2 | not det | not det | not det | 0.009 |
| Flavones | Chrysoeriol | det/det | det/det | det/det | det/det | 0.0027 | det | det | det |
| Flavonols | Kaempferol | det/0.007 | not det/not det | not det/det | not det/not det | 0.019 | not det | not det | not det |
| Kaempferol 3-O-glucoside | 0.074/0.7 | not det/not det | not det/0.0068 | not det/not det | 0.6 | 0.07 | 0.017 | not det | |
| Quercitrin | 0.0124/not det | not det/not det | not det/not det | not det/not det | not det | not det | not det | not det | |
| Quercetin 3-O-glucoside | 0.63/3.64 | not det/0.0024 | 0.0316/0.38 | not det/0.0054 | 2.82 | 1.08 | 0.48 | not det | |
| Quercetin 3-O-rutinoside | 6.1/4.6 | 0.0018/0.0206 | 0.40/1.35 | 0.0023/0.0186 | 9.5 | 4.6 | 2.25 | 0.0054 | |
| Isorhamnetin | det/0.036 | not det/not det | not det/det | not det/not det | 0.047 | not det | not det | not det | |
| Biflavonoids | Amentoflavone | det/det | det/det | det/det | det/det | det | det | det | det |
| Flavan-3-ols | Catechin | not det/0.076 | not det/not det | not det/not det | not det/not det | 1.0 | not det | not det | not det |
* det: peak observed, but the concentration was too low to evaluate it; ** not det: peak not observed. Bolded compounds are those that occur at the highest concentration.