TABLE 4.
Quantification of the main compounds detected in Cladium mariscus (L.) Pohl (sawgrass) before PVPP sample treatment.
No. | Assigned identification | mg g–1 DE |
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Sp | Su | Au | Wi | Le | Inf | ||
Catechin derivatives | |||||||
3 + 4 | Proanthocyanidin dimer + (epi)gallocatechin | 4.5 ± 0.3b | 2.8 ± 0.2ab | 30 ± 2d | 9.2 ± 0.6c | 2.1 ± 0.1a | 0.84 ± 0.05a |
14 | Epicatechin | 0.57 ± 0.04a | 3.4 ± 0.2b | 5.3 ± 0.4c | 0.22 ± 0.02a | 0.17 ± 0.01a | 6.1 ± 0.4d |
Total | 5.1 ± 0.3b | 6.2 ± 0.3b | 35 ± 2d | 9.4 ± 0.6c | 2.3 ± 0.1a | 6.9 ± 0.4b | |
Flavonoids | |||||||
15 | Luteolin-C-Hex-C-Pen | 2.9 ± 0.2b | 2.8 ± 0.2b | 10.1 ± 0.6c | 3.4 ± 0.2b | 3.6 ± 0.2b | 0.55 ± 0.04a |
16 | Apigenin-C-Hex-C-Pen | 0.43 ± 0.02a | 0.43 ± 0.03a | 1.5 ± 0.1c | 0.70 ± 0.04b | 0.43 ± 0.03a | 0.32 ± 0.02a |
17 | Luteolin-6-C-glucoside (isoorientin) | 2.3 ± 0.1bc | 2.6 ± 0.1c | 8.3 ± 0.4e | 2.0 ± 0.1b | 3.7 ± 0.2d | 0.56 ± 0.03a |
21 + 22 | Myricetin-O-dHex + vitexin | 0.53 ± 0.04b | 0.41 ± 0.03ab | 1.7 ± 0.1c | 0.35 ± 0.3a | 0.36 ± 0.03a | – |
23 | Kaempferol-O-Hex | 0.87 ± 0.06b | 1.19 ± 0.07c | 3.8 ± 0.2d | 1.2 ± 0.1c | 1.36 ± 0.08c | 0.43 ± 0.03a |
24 | Luteolin-C-Pen | 0.63 ± 0.04a | 1.02 ± 0.06c | 1.8 ± 0.1d | 0.62 ± 0.04a | 0.82 ± 0.05b | – |
27 | Myricetin | 0.27 ± 0.02a | 0.31 ± 0.02ab | 0.44 ± 0.03c | 0.75 ± 0.05d | 0.39 ± 0.03bc | – |
29 | Luteolin | 0.31 ± 0.02a | 4.1 ± 0.2d | 3.5 ± 0.2c | 0.86 ± 0.06b | 0.78 ± 0.05ab | 6.1 ± 0.3e |
| |||||||
Total | 8.2 ± 0.2a | 12.9 ± 0.3d | 31.1 ± 0.8e | 9.9 ± 0.4b | 11.4 ± 0.3c | 8.0 ± 0.3a | |
TIPC | 13.3 ± 0.4a | 19.1 ± 0.4b | 66 ± 2c | 19.3 ± 0.7b | 13.7 ± 0.3a | 14.9 ± 0.5a |
DE, dry extract; Sp, spring; Su, summer; Au, autumn; Wi, winter; Le, leaves; Inf, inflorescences. Bold values represent the sum of each type of components. TIPC, total individual phenolic content (sum of all compounds quantified individually). –: not detected. Different superscript letters correspond to significant differences between seasons (p < 0.05).