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. 2022 Jun 23;13:934644. doi: 10.3389/fpls.2022.934644

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
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).