Phenolic Profile, Antioxidant Activity, and Enzyme Inhibitory Properties of Limonium delicatulum (Girard) Kuntze and Limonium quesadense Erben

Table 1

Characterization of phenolics in L. delicatulum and L. quesadense extracts.

No.		tR(min)	[M-H]^−m/z	m/z (% base peak)	Assigned identification	L. delicatulum	L. quesadense
1		1.7	377	MS^2 [377]: 341 (100); MS^3 [377⟶341]: 179 (100), 131 (14), 113 (18); MS^4 [377⟶341⟶179]: 161 (42), 143 (93), 119 (100)	Disaccharide (HCl adduct)	✓	✓
2		2.0	191	MS^2 [191]: 173 (25), 127 (19), 111 (100)	Citric acid		✓^b
3		3.1	411	MS^2 [411]: 331 (7), 241 (100), 169 (14), 125 (6)	Galloyl hexoside (sulfate adduct)	✓
4		3.3	169	MS^2 [169]: 125 (100)	Gallic acid	✓^b	✓^b
5		3.6	439	MS^2 [439]: 241 (100); MS^3 [439⟶241]: 223 (96), 139 (100), 165 (16)	Unknown	✓
6		4.3	379	MS^2 [379]: 379 (100), 241 (20)	Unknown		✓
7		4.5	325	MS^2 [325]: 169 (100), 125 (9); MS^3 [325⟶169]: 125 (100)	Gallic acid derivative	✓	✓
8		5.6	365	MS^2 [365]: 321 (68), 153 (100); MS^3 [365⟶153]: 109 (100), 108 (61)	Protocatechuic acid derivative	✓
9		8.0	761	MS^2 [761]: 609 (89), 593 (96), 575 (74), 423 (100); MS^3 [761⟶423]: 297 (50), 283 (100), 243 (28)	Prodelphinidin dimer B-type gallate (2 units (epi)GC)	✓^a	✓
10		9.1	443	MS^2 [443]: 275 (24), 245 (100), 167 (27)	Unknown	✓
11		9.5	449 (+)	MS^2 [449]:431 (8), 288(18), 287(100)	Cyanidin 3-glucoside	✓^a
12		10.4	759	MS^2 [759]: 481 (100), 423 (96), 301 (87); MS^3 [759⟶423]: 297 (84), 283 (50), 243 (100)	Unknown	✓
13		11.0	363	MS^2 [363]: 363 (100), 241 (10)	Unknown		✓
14		11.0	457	MS^2 [457]: 331 (20), 305 (17), 193 (85), 169 (100); MS^3 [457⟶169]: 125 (100)	Gallo(epi)catechin-O-gallate isomer		✓^a
15		12.3	913	MS^2 [913]: 761 (100), 423 (60); MS^3 [913⟶761]: 423 (100), 609 (90), 305 (49); MS^4 [913⟶761⟶423]: 297 (100), 253 (49), 405 (33)	Gallo(epi)catechin-O-gallate dimer		✓
16		13.3	457	MS^2 [457]: 331 (22), 305 (13), 169 (100); MS^3 [457⟶169]: 125 (100)	Gallo(epi)catechin-O-gallate isomer	✓	✓
17		15.0	631	MS^2 [631]: 479 (80), 317 (100); MS^3 [631⟶479]: 317 (100), 316 (91), 179 (9); MS^4 [631⟶479⟶317]: 271 (100), 179 (54), 151 (18)	Myricetin-galloyl-hexoside	✓	✓
18		15.4	457	MS^2 [457]: 331 (16), 305 (15), 169 (100); MS^3 [457⟶169]: 125 (100)	Gallo(epi)catechin-O-gallate isomer		✓^b
19		16.2	625	MS^2 [625]: 317 (100), 316 (89); MS^3 [625⟶317]: 271 (100), 179 (48), 151 (26)	Myricetin-O-rutinoside	✓	✓
20		16.6	479	MS^2 [479]: 317 (79), 316 (100), 179 (5); MS^3 [479⟶317]: 271 (100), 179 (67), 151 (16)	Myricetin-O-hexoside	✓	✓
21		18.5	615	MS^2 [615]: 463 (100), 301 (33); MS^3 [615⟶463]: 301 (100); MS^4 [615⟶463⟶301]: 179 (75), 151 (100)	Quercetin-galloyl-hexoside	✓	✓^b
22		19.2	609	MS^2 [609]: 301 (100); MS^3 [609⟶301]: 271 (98), 179 (76), 151 (100)	Rutin		✓
23		19.9	463	MS^2 [463]: 317 (77), 316 (100), 179 (10); MS^3 [463⟶316]: 271 (100), 179 (60), 151 (18)	Myricetin-O-deoxyhexoside	✓	✓
24		20.6	463	MS^2 [463]: 301 (100), 151 (5); MS^3 [463⟶301]: 255 (21), 179 (70), 151 (100)	Quercetin-O-hexoside	✓	✓
25		20.6	465 (+)	MS^2 [465]: 303 (100); MS^3 [465⟶303]: 257 (100), 137 (39)	Delphinidin-O-hexoside		✓
26		21.0	659	MS^2 [659]: 317 (85), 316 (100); MS^3 [659⟶316]: 271 (100), 179 (74), 151 (47)	Myricetin derivative	✓^a
27		22.2	497	MS^2 [497]: 417 (100); MS^3 [497⟶417]: 371 (14), 181 (100), 166 (50), 151 (24); MS^4 [497⟶417⟶181]: 166 (100)	Syringaresinol (sulfate adduct)	✓
28		23.0	593	MS^2 [593]: 286 (20), 285 (100); MS^3 [595⟶285]: 257 (100), 239 (76), 213 (75), 151 (45)	Kaempferol-O-rutinoside	✓
29		23.5	599	MS^2 [599]: 313 (100), 285 (94); MS^3 [599⟶313]: 169 (100)	Kaempferol-O-galloyl-hexoside		✓
30		24.1	549	MS^2 [549]: 505 (100); MS^3 [549⟶505]: 317 (44), 316 (100); MS^4 [549⟶505⟶316]: 271 (100), 179 (57), 151 (16)	Myricetin derivative	✓^a	✓
31		24.6	447	MS^2 [447]: 301 (100), 179 (5); MS^3 [447⟶301]: 179 (91), 151 (100)	Quercetin-O-deoxyhexoside	✓	✓
32		24.7	303 (+)	MS^2 [303]: 257 (100)	Delphinidin	✓^a
33		24.9	477	MS^2 [477]: 331 (100); MS^3 [477⟶331]: 316 (100), 315 (57)	Mearnsetin-O-deoxyhexoside		✓^a
34		27.2	437	MS^2 [437]: 357 (100), 151 (39); MS^3 [437⟶357]: 342 (48), 151 (100), 136 (40)	Pinoresinol (sulfate adduct)	✓
35		28.0	615	MS^2 [615]: 317 (100); MS^3 [615⟶317]: 179 (100), 151 (40)	Myricetin-O-galloyl-deoxyhexoside	✓^a	✓
36		28.6	615	MS^2 [615]: 317 (100); MS^3 [615⟶317]: 179 (100), 151 (54)	Myricetin-O-galloyl-deoxyhexoside	✓^a	✓
37		28.6	431	MS^2 [431]: 286 (17), 285 (100), 284 (25), 255 (10); MS^3 [431⟶285]: 257 (82), 255 (100), 197 (39)	Kaempferol-O-deoxyhexoside		✓
38		29.5	533	MS^2 [533]: 489 (100); MS^3 [533⟶489]: 447 (19), 301 (100); MS^4 [533⟶489⟶301]: 271 (100), 179 (22), 151 (42)	Quercetin derivative	✓^a	✓
39		33.4	599	MS^2 [599]: 301 (100); MS^3 [599⟶301]: 179 (81), 151 (100); MS^4 [599⟶301⟶179]: 151 (100)	Quercetin-O-galloyl-deoxyhexoside	✓	✓

^aOnly in MeOH extract; ^b only in H₂O extract.