|
No.
|
tR (min)
|
Molecular Formula
|
[M-H]−
|
UV/Vis (nm)
|
Compound
|
Class
|
mg/g extract
|
RSD (%)
|
|---|
|
1
|
6.8
|
C7H6O5
|
169, 125
|
210, 270
|
Gallic acid
|
Benzoic acid-like acid
|
76.36
|
2.70
|
|
2
|
9.7
|
C15H14O6
|
289
|
205, 278
|
Catechin
|
Flavan-3-ol-like
|
6.53
|
1.87
|
|
3
|
12.6
|
C16H18O9
|
353, 191
|
215, 325
|
Chlorogenic acid
|
Cinnamic acid-like
|
0.73
|
1.73
|
|
4
|
16.8
|
C15H12O5
|
271
|
283
|
Naringenin
|
Flavanone-like
|
5.84
|
1.30
|
|
5
|
26.0
|
C27H30O16
|
601, 301
|
254, 354
|
Rutin
|
Flavonol-glycoside-like
|
9.33
|
1.38
|
|
6
|
26.2
|
C21H20O12
|
463, 301
|
254, 354
|
Isoquercitrin
|
Flavonol-glycoside-like
|
22.50
|
2.02
|
|
7
|
28.4
|
C27H32O14
|
579, 271
|
254, 354
|
Naringin
|
Flavanone-glycoside-like
|
1.20
|
3.56
|
|
8
|
29.0
|
C21H20O12
|
463, 301
|
257, 354
|
Quercetin-3-galactoside
|
Flavonol-glycoside-like
|
81.75
|
0.88
|
|
9
|
30.2
|
C21H20O10
|
431, 269
|
270, 330
|
Vitexin
|
Flavone-glycoside-like
|
0.64
|
2.95
|
|
10
|
33.4
|
C21H20O11
|
447, 285
|
256, 346
|
Kaempferol-3-glucoside
|
Flavonol-glycoside-like
|
6.72
|
4.93
|
|
11
|
35.3
|
C15H10O7
|
301
|
370
|
Quercetin
|
Flavonol-like
|
0.98
|
0.81
|
|
12
|
36.4
|
C15H10O7
|
285
|
265, 365
|
Luteolin
|
Flavone-like
|
0.49
|
3.31
|
- Column: Ascentis Express C18, 15 cm × 4.6 mm, 2.7 μm d.p. (ESI, negative ionization mode; when observed, secondary fragment ions are reported).Values are expressed as the mean ± S.D. (n = 3)
