Table 2.
The effect of cold plasma treatment on the content of total polyphenols, anthocyanins and flavonoids in water herb extracts. Data presented as mean values with standard deviations.
| Herb Species | Total Polyphenols [mg Gallic Acid/g DW] |
Anthocyanins [mg Gallic Acid/g DW] |
Flavonoids [mg Gallic Acid/g DW] |
|||
|---|---|---|---|---|---|---|
| Control | P-Treated | Control | P-Treated | Control | P-Treated | |
| Echinacea purpurea | 17.26 ± 1.57 a | 19.34 ± 0.76 b | 9.8 ± 1.43 a | 13.36 ± 1.98 b | 3.04 ± 0.08 | 3.15 ± 0.24 |
| Salvia officinalis | 40.35 ± 1.22 a | 43.64 ± 1.05 b | 20.39 ± 1.51 a | 30.31 ± 2.52 b | 8.81 ± 1.09 a | 10.28 ± 0.25 b |
| Urtica dioica | 18.01 ± 0.78 | 17.33 ± 0.51 | 89.47 ± 10.26 a | 0 ± 0 b | 4.04 ± 0.25 a | 4.54 ± 0.09 b |
| Polygonum aviculare | 19.96 ± 1.41 a | 21.88 ± 0.74 b | 4.42 ± 0.3 a | 7.85 ± 0.88 b | 2.86 ± 0.07 | 2.8 ± 0.03 |
| Vaccinium myrtillus | 74.39 ± 1.05 a | 79.46 ± 0.79 b | 0 ± 0 | 0 ± 0 | 5.47 ± 0.84 a | 6.49 ± 0.07 b |
| Taraxacum officinale | 14.43 ± 0.35 a | 16.02 ± 0.8 b | 11.48 ± 0.93 | 11.55 ± 3.21 | 3.24 ± 0.25 | 3.45 ± 0.05 |
| Hypericum perforatum | 56.95 ± 1.81 a | 61 ± 0.69 b | 21.33 ± 2.99 | 21.96 ± 1.55 | 12.05 ± 0.13 a | 11.53 ± 0.16 b |
| Achillea millefolium | 19.11 ± 0.57 a | 21.26 ± 0.35 b | 13.81 ± 1.38 | 12.44 ± 3.14 | 4.66 ± 0.08 | 4.72 ± 0.11 |
| Sanguisorba officinalis | 42.87 ± 2.15 a | 47.75 ± 0.77 b | 17.5 ± 1.47 | 15.95 ± 3.04 | 4.77 ± 0.11 a | 5.8 ± 0.12 b |
| Leonurus cardiaca | 9.96 ± 0.44 a | 11 ± 0.7 b | 0.22 ± 0.27 | 1.11 ± 1.22 | 1.86 ± 0.06 | 1.84 ± 0.02 |
| Ballota nigra | 12.99 ± 0.64 a | 15.05 ± 0.33 b | 0 ± 0 | 0 ± 0 | 2.35 ± 0.04 | 2.28 ± 0.03 |
| Andrographis paniculata | 10.63 ± 0.42 a | 11.7 ± 0.37 b | 10.51 ± 1.23 a | 14.15 ± 0.81 b | 2.18 ± 0.05 | 2.14 ± 0.03 |
Mean values bearing different letters (a, b) within raw for each parameter differ significantly (p < 0.05).