Inulae Flos and Its Compounds Inhibit TNF-α- and IFN-γ-Induced Chemokine Production in HaCaT Human Keratinocytes

Table 4

Average contents of the reference compounds in extracts produced with different solvent compositions (𝑛=3).

Compound	Average content in each different solvent composition (mg/g)^a
	70% methanol	70% ethanol	Methanol	Ethanol	Water
Chlorogenic acid	7.27 ± 0.18	5.89 ± 0.19	3.57 ± 0.09	1.49 ± 0.00	0.34 ± 0.02
Caffeic acid	2.95 ± 0.01	2.47 ± 0.01	3.00 ± 0.01	1.40 ± 0.02	20.51 ± 1.89
1,5-Dicaffeoylquinic acid	59.69 ± 1.41	49.18 ± 1.53	33.23 ± 0.84	19.23 ± 0.31	20.86 ± 1.19
Rutin	6.34 ± 0.56	5.03 ± 1.06	7.44 ± 0.12	5.56 ± 0.21	0.43 ± 0.03
Kaempferol-3-O-glucoside	0.63 ± 0.02	0.34 ± 0.02	0.81 ± 0.01	0.65 ± 0.04	0.27 ± 0.01
Quercetin	2.97 ± 0.13	4.09 ± 0.09	5.96 ± 0.12	8.26 ± 0.24	ND
Luteolin	2.13 ± 0.04	1.96 ± 0.03	3.25 ± 0.03	4.35 ± 0.04	0.33 ± 0.02
6-Methoxy-luteolin	3.01 ± 0.14	2.68 ± 0.10	4.47 ± 0.05	5.77 ± 0.17	0.42 ± 0.00

ND: not detected.
^aAverage content represented as mean ± SD.