TABLE 3.

Characterization of the polyphenolic compounds found in the analyzed extracts of Cladium mariscus (L.) Pohl (sawgrass).

No.	tR (min)	[M-H]– m/z	m/z (% base peak)	Assigned identification	PVPP (-)	PVPP (+)
1	1.8	377	MS2 [377]: 341 (100) MS3 [377→341]: 179 (100), 161 (24), 143 (13), 119 (25), 113 (20)	Disaccharide (HCl adduct)	All samples	All samples
2	4.6	305	MS2 [305]: 261 (7), 221 (43), 219 (72), 179 (100), 165 (35)	(Epi)gallocatechin	Su, Au, Wi, Le, Inf	Absent
3	7.0	577	MS2 [577]: 451 (38), 425 (100), 407 (96), 305 (21), 289 (45), 287 (17)	Proanthocyanidin dimer	All samples	Absent
4	7.2	305	MS2 [305]: 261 (12), 221 (55), 219 (77), 179 (100), 165 (26)	(Epi)gallocatechin	All samples	Absent
5	8.8	289	MS2 [289]: 245 (100), 205 (43), 203 (28), 179 (24)	Catechin	All samples	Absent
6	9.0	353	MS2 [353]: 191 (100), 179 (3), 173 (4), 135 (1)	Chlorogenic acid	All samples	All samples
7	9.3	865	MS2 [865]: 739 (54), 713 (41), 695 (100), 577 (52), 451 (29), 407 (54), 405 (23), 289(19), 287 (41)	Proanthocyanidin trimer	Su, Wi, Le, Inf	Absent
8	9.5	429	MS2 [429]: 267 (100)	Unknown	All samples	All samples
9	9.9	577	MS2 [577]: 451 (69), 441 (17), 425 (30), 305 (100), 289 (10), 287 (8)	Proanthocyanidin dimer	All samples	Absent
10	10.1	865	MS2 [865]: 739 (76), 695 (100), 577 (83), 451 (18), 407 (97), 287 (58)	Proanthocyanidin trimer	Su, Au, Inf	Absent
11	10.1	561	MS2 [561]: 543(18), 435 (58), 409 (73), 425 (46), 289 (100), 271 (41) MS3 [561→289]: 245 (100), 205 (57), 203 (30)	Proanthocyanidin dimer	All samples	Absent
12	10.9	577	MS2 [577]: 451 (25), 441 (9), 425 (100), 407 (61), 305 (43), 289 (33), 287 (10)	Proanthocyanidin dimer	All samples	Absent
13	11.5	577	MS2 [577]: 451 (28), 425 (10), 305 (100), 289 (4), 287 (6)	Proanthocyanidin dimer	All samples	Absent
14	12.1	289	MS2 [289]: 245 (100), 205 (48), 203 (19), 179 (25), 161 (10)	Epicatechin	All samples	Absent
15	13.7	579	MS2 [579]: 561 (16), 519 (16), 489 (100), 459 (99), 429 (18), 399 (50), 369 (14)	Luteolin-C-hexoside-C-pentoside	All samples	All samples
16	15.9	563	MS2 [563]: 545 (14), 503 (15), 473 (48), 443 (100), 383 (37), 353 (43)	Apigenin-C-hexoside-C-pentoside	All samples	All samples
17	16.5	447	MS2 [447]: 429 (14), 357 (70), 327 (100), 285 (3)	Luteolin-6-C-glucoside (isoorientin)	All samples	Sp, Su
18	17.0	461	MS2 [461]: 341 (100), 313 (66), 298 (37)	Unknown	All samples	All samples
19	17.0	549	MS2 [549]: 531 (12), 489 (26), 459 (100), 441 (13), 429 (10), 399 (64), 369 (25)	Luteolin 6-C-pentosyl-8-C-pentoside	All samples	All samples
20	17.3	563	MS2 [563]: 503 (22), 473 (100), 443 (69), 383 (61), 353 (97)	Apigenin-C-hexoside-C-pentoside	Sp, Su, Au, Wi, Le	Sp, Su, Le, Inf
21	20.2	463	MS2 [463]: 317 (100) MS3 [463→317]: 271 (100), 151 (21)	Myricetin-O-deoxyhexoside	Sp, Au	Absent
22	20.2	431	MS2 [431]: 341 (44), 311 (100), 283 (5) MS3 [431→311]: 283 (100)	Apigenin-8-C-glu (vitexin)	Sp, Su, Au, Wi, Le	Absent
23	21.4	447	MS2 [447]: 285 (100) MS3 [447→285]: 285 (100), 241 (47), 151 (10)	Kaempferol-O-hexoside	All samples	Absent
24	22.2	417	MS2 [417]: 399 (22), 357 (100), 327 (49) MS3 [417→357]: 339 (100), 311 (24), 297 (82), 285 (93)	Luteolin-C-pentoside	Sp, Su, Au, Wi, Le	Absent
25	22.8	243	MS2 [243]: 225 (100), 201 (50), 199 (23), 157 (20)	Unknown	Su, Inf	Absent
26	24.9	485	MS2 [485]: 375 (100), 361 (27) MS3 [485→375]: 357 (87), 333 (70), 329 (100), 313 (64)	Unknown	Su, Au, Inf	Absent
27	26.9	317	MS2 [317]: 179 (100), 151 (47)	Myricetin	Sp, Su, Au, Wi, Le	Absent
28	32.1	485	MS2 [485]: 375 (100), 357 (13) MS3 [485→375]: 357 (100)	Unknown	Su, Au, Inf	Absent
29	36.0	285	MS2 [285]: 285 (100), 267 (5), 243 (2), 241 (3)	Luteolin	All samples	Absent

Sp, spring; Su, summer; Au, autumn; Wi, winter; Le, leaves; Inf, inflorescences.