Table 1.
Individual polyphenols (mg/g) identified using LC/MS.
| Class | Compound | MASP | CP | PT | MASRJ | CLRJ | CLJ | MASA | CLA | CA |
|---|---|---|---|---|---|---|---|---|---|---|
| Flavonoids | Epicatechin (µg/g d.w.) |
73.90 ± 1.20 a | 73.90 ± 1.85 a | 74.20 ± 1.86 a | 73.80 ± 1.85 a | 74.20 ± 1.86 a | 74.00 ± 1.85 a | 73.90 ± 1.85 a | 74.20 ± 1.86 a | 74.00 ± 1.85 a |
| Rutin (µg/g d.w.) |
79.30 ± 1.98 a | 79.30 ± 1.98 a | 79.30 ± 1.98 a | nd * | nd | nd | 79.30 ± 1.98 a | 79.30 ± 1.98 a | 79.00 ± 4.38 a | |
| Quercitin (µg/g d.w.) |
15.60 ± 0.39 a | 16.80 ± 1.92 c | 15.70 ± 0.39 a | 15.78 ± 0.39 a | 15.90 ± 0.40 a,b | 15.70 ± 0.39 a | 16.10 ± 0.40 b | 16.50 ± 0.41 b,c | 15.80 ± 0.40 a,b | |
| Total (µg/g d.w.) |
168.8 ± 3.57 | 170 ± 5.75 | 169.2 ± 5.76 | 89.58 ± 2.24 | 90.1 ± 2.26 | 89.7 ± 2.24 | 169.3 ± 4.23 | 170 ± 4.25 | 168.8 ± 6.63 | |
| Phenolic acids | Gallic acid (µ/gd.w.) | 17.70 ± 0.44 b | 16.90 ± 0.42 a | 16.90 ± 0.42 | nd | nd | nd | nd | nd | nd |
| β-rezolcilic acid (µg/g d.w.) |
nd | nd | nd | nd | 175.20 ± 4.38 a | 175.00 ± 4.38 a | 175.10 ± 4.38 a | 175.10 ± 4.38 a | 175.00 ± 4.38 a | |
| Caffeic acid (µg/g d.w.) | nd | nd | nd | nd | nd | nd | 18.30 ± 0.46 a | 19.40 ± 0.49 b | 19.30 ± 0.38 a | |
| Cumaric acid (µg/g d.w.) | 41.00 ± 1.03 c | 50.90 ± 5.42 d | 37.00 ± 0.93 a | 39.60 ± 0.99 b | 39.60 ± 0.99 b | 39.10 ± 0.98 b | 39.80 ± 0.02 b | 37.70 ± 0.94 a | 40.80 ± 1.02 c | |
| Ferulic acid (µg/g d.w.) | 126.40 ± 3.16 a | 198.72 ± 12.47 c | 127.00 ± 3.18 a | 129.60 ± 3.24 b | 126.60 ± 3.17 a | 127.80 ± 3.20 a | 126.80 ± 3.17 a | 126.10 ± 3.15 a | 126.20 ± 3.16 a | |
| Rosmarinic acid (µg/g d.w.) | 67.90 ± 1.70 a | 68.60 ± 1.72 a,b | 87.50 ± 2.19 c | 68.10 ± 1.70 a,b | 69.10 ± 1.73 b | 68.20 ± 1.71 a,b | 67.90 ± 1.70 a | 68.00 ± 1.70 a | 68.00 ± 1.70 a | |
| Total (µg/g d.w.) | 253 ± 6.33 | 335.2 ± 20.03 | 268.4 ± 6.72 | 237.3 ± 5.93 | 410.5 ± 10.27 | 410.1 ± 10.27 | 427.9 ± 9.73 | 426.3 ± 10.66 | 429.3 ± 10.64 | |
| Stilbene | Resveratrol (µg/g d.w.) | 137.70 ± 3.44 c | 122.60 ± 3.07 a | 132.70 ± 3.32 b,c | 119.10 ± 2.98 a | 233.30 ± 5.83 e | 226.60 ± 5.67 e | 135.00 ± 4.38 a | 128.20 ± 3.21 b | 160.00 ± 4.00 d |
| Total (µg/g d.w.) | 137.70 ± 3.44 c | 122.60 ± 3.07 a | 132.70 ± 3.32 b,c | 119.10 ± 2.98 a | 233.30 ± 5.83 e | 226.60 ± 5.67 e | 135.00 ± 4.38 a | 128.20 ± 3.21 b | 160.00 ± 4.00 d |
Results are expressed as the three-determination mean ± standard deviation (SD). Different lowercase letters (a–e) indicate statistically significant differences between samples according to the t-test; d.w.—dry weight; * nd—not detectable.