Table 1.

Characterization of GAAE extract by Liquid Chromatography-Electrospray Ionization Mass Spectrometry (LC-ESI-MS) analysis.

No1	Compounds2	Molecular formula	Molecular mass	[M-H]− m/z	Retention time (min)	Content (μg/g extract)
1	Quinic acid	C7H12O6	192	191	2	2820.7
2	Protocatechuic acid	C7H6O4	154	153	6.9	133.6
3	Chlorogenic acid	C16H18O9	354	353	11.7	6.9
4	4-O-Caffeoylquinic acid	C16H18O9	354	353	11.8	7.14
5	Caffeic acid	C9H8O4	180	179	14.6	15.2
6	Syringic acid	C9H10O5	198	197	16.2	26.1
7	p-Coumaric acid	C9H8O3	164	163	21	659.4
8	Luteolin-7-O-glucoside	C21H20O11	448	447	24.8	1156.2
9	Rosmarinic acid	C18H16O8	360	359	26.2	140.7
10	Naringin	C27H32O14	580	579	26.4	229.9
11	Apigenin-7-O-glucoside	C21H20O10	432	431	27.2	14
12	trans-Cinnamic acid	C9H8O2	148	147	32	14720.4
13	Quercetin	C15H10O7	302	301	32.3	2.98
14	Kaempferol	C15H10O6	286	285	32.2	138.8
15	Naringenin	C15H12O5	272	271	34.2	1.7
16	Apigenin	C15H10O5	270	269	34.8	3.9
17	Luteolin	C15H10O6	286	285	35.2	1.6
18	Cirsiliol	C17H14O7	330	329	35.8	84.2
19	Cirsilneol	C18H1607	380	343	38.9	0.56