TABLE 1.

UHPLC-MS identification of Lamiaceae polyphenols.

No.	tR (min)	[M-H]− (m/z)	MS/MS (m/z)	Polyphenol	References	Extract (Ex)
Hydroquinone derivative
1	3.63	271.0813	108/109	Arbutin	S	Om, Tv
Phenolic acids – caffetannins
2	9.25	179.0358	135	Caffeic acid	S	Om, Tv, Ts, Mp
3	11.31	537.1042	493, 295, and 185	Lithospermic acid (Lithospermic acid A)	S	Ts, Mp
4	13.30	717.1455	519, 339, 321, and 295	Lithospermic acid B (salvianolic acid B)	Bodalska et al. (2020); Bodalska et al. (2021); Engel et al. (2016)	Om, Tv, Ts, Mp
5	12.88	359.0775	197, 179, 161, and 135	Rosmarinic acid	S	Om, Tv, Ts, Mp
Flavones and flavanones
6	12.18	577.1558	269	Apigenin-7-O-rutinoside (isorhoifolin)	S	Mp
7	12.55	431.0996	269	Apigenin-7-O-β-glucoside	S	Om, Tv, Ts
8	12.68	445.0772	269	Apigenin-7-O-β-glucuronide	Bodalska et al. (2020); Bodalska et al. (2021); Engel et al. (2016)	Om, Tv, Ts, Mp
9	10.17	593.1507	503, 473, 383, and 535	Apigenin-6,8-di-C-glucoside (vicenin-2)	Engel et al. (2016)	Om
10	12.46	607.1668	299	Diosmetin-7-O-rutinoside (diosmin)	S	Mp
11	11.11	595.1672	287	Eriodictyol-7-O-rutinoside (eriocitrin)	S	Om, Tv, Ts, Mp
12	11.42	449.1088	287	Eriodictyol-7-O-β-glucoside	S	Tv, Ts, Mp
13	11.73	463.0862	287	Eriodictyol-7-O-β-glucuronide	Bodalska et al. (2020); Bodalska et al. (2021)	Om, Tv, Ts, Mp
14	12.41	609.1819	301	Hesperetin-7-O-rutinoside (hesperidin)	S	Mp
15	11.43	593.1507	285	Luteolin-7-O-rutinoside (scolymoside)	S	Om, Tv, Ts, Mp
16	11.71	447.0941	285	Luteolin-7-O-β-glucoside	S	Om, Tv, Ts, Mp
17	11.77	461.0737	285	Luteolin-7-O-β-glucuronide	S	Om, Tv, Ts, Mp
18	11.97	579.1709	271	Naringenin-7-O-rutinoside (narirutin)	S	Mp

S, authentic standard; Om, Origanum majorana L.; Tv, thymus vulgaris L.; Ts, thymus serpyllum L.; Mp, mentha × piperita L.