Table 2.

Identification of isolated (1–14) and predicted (15–23) compounds from HJF by HPLC-qTOF-MS/MS analysis in negative ion mode.

Comp NO a	tR (min)	Molecular Formula	[M − H]−/[M + HCOO]−	Fragment Ion	Identification
1	15.352	C19H30O7	415.1975	339.1388, 271.1549, 223.0263	(Z)-6-[9-(β-d-glucopyranosyloxy)butylidene]-5,1,1-trimethyl-4-cyclohexen-3-one
2	17.885	C18H24O8	413.1446	343.2107, 299.1835	(2E)-4-[benzoyl-oxy]-3-methyl-2-buten-1-yl-β-d-glucopyranoside,
3	16.495	C21H20O10	431.1030	268.0363, 176.0077	Apigenin-7-O-β-d-glucopyranoside
5	11.876	C18H26O10	447.1689	315.0884, 269.0979, 191.0557	Benzyl-α-l-arabinopyranosyl-(1″→6′)-β-d-glucopyranoside
6	13.515	C19H28O10	461.1689	415.1607	Phenylethyl-α-l-arabinopyranosyl-(1″→6′)-β-d-glucopyranoside
8	14.955	C19H30O7	415.1964	284.0315, 223.0289, 130.9644	(6R,9R)-3-Oxo-α-ionol-β-d-glucopyranoside
9	15.601	C19H30O7	415.1989	369.1907, 223.0259, 119.0389	(6R,9S)-3-Oxo-α-ionol-β-d-glucopyranoside
10	16.931	C16H22O7	371.1354	163.0738	Eugenyl-β-d-glucopyranoside
11	15.203	C21H20O11	447.0990	377.1665, 284.0322, 151.0022	Luteolin-7-O-β-d-glucopyranoside
12	14.756	C21H20O10	431.0996	311.0547, 283.1125	Vitexin
13	23.100	C15H10O5	269.0463	227.1268, 183.1374	Apigenin
14	20.816	C15H10O6	285.0412	211.1314, 171.1022	Luteolin
15	11.975		431.1953	385.1836, 264.1225	Unknown
16	13.962	C27H30O16	609.1506	447.0973, 285.0291	Flavonoid diglucosides
17	20.617		327.2200	211.1321, 119.0367	Unknown
18	31.742	C21H30O6	361.2007	293.2150, 265.1484	Humulone
19	31.891	C21H30O6	361.2006	293.2149, 275.2023	Adhumulone
20	32.139	C21H30O6	361.2003	293.21516, 246.1214	Adprehunumolne
21	33.480		687.31692	623.2733, 555.2895	Unknown
22	33.977	C26H38O4	431.2019	363.2112, 295.2307	Lupulone
23	36.758		389.2071	321.2218, 293.1807	Unknown

^a compounds 4 and 7 were not detected by HPLC-qTOF-MS/MS analysis.