Table 3.

Contents of 17 major phenolic compounds in five A. villosum fractions (mg/g DW).

Number	Compounds	Regression equation	R2	Fr-PE	Fr-CH2Cl2	Fr-EtOAc	Fr-nBuOH	Fr-H2O
1	Quercitrin	y = 1E+06x − 16740	0.9997	ND	ND	15.61 ± 0.58	0.81 ± 0.03	ND
2	Vanillic acid	y = 47,194x + 181.1	0.9993	ND	2.38 ± 0.10	93.70 ± 3.13	0.89 ± 0.07	ND
3	Gallic acid	y = 362,825x − 12734	0.9959	ND	ND	0.39 ± 0.00	ND	ND
4	Syringic acid	y = 219,826x − 3786.1	0.9995	ND	ND	3.36 ± 0.01	ND	ND
5	Protocatechuic acid	y = 657,872x − 7827.4	0.9999	ND	ND	38.93 ± 1.10	1.35 ± 0.01	0.27 ± 0.01
6	(+/−) Catechin	y = 589,073x − 6535.7	0.9995	ND	ND	72.67 ± 0.48	4.10 ± 0.08	ND
7	Epicatechin	y = 879,555x − 17623	0.9982	ND	ND	69.87 ± 1.75	5.61 ± 0.22	ND
8	Isorhamnetin	y = 1E+06x + 57,244	0.9818	ND	ND	2.64 ± 0.03	ND	ND
9	Rutin	y = 2E+06x − 62151	0.9987	ND	ND	0.43 ± 0.00	0.68 ± 0.03	ND
10	Ferulic acid	y = 515,351x − 8331.6	0.9991	ND	0.59 ± 0.02	2.52 ± 0.03	ND	ND
11	Caffeic acid	y = 3E+06x − 60142	0.9987	ND	ND	0.49 ± 0.02	ND	ND
12	Hyperoside	y = 2E+06x − 29401	0.9997	ND	ND	2.24 ± 0.18	0.56 ± 0.04	ND
13	Isoqercitrin	y = 5E+06x − 55014	0.9988	ND	ND	2.20 ± 0.60	0.81 ± 0.06	ND
14	Protocatechualdehyde	y = 3E+06x + 51,312	0.9924	ND	0.21 ± 0.01	4.21 ± 0.04	0.04 ± 0.00	0.04 ± 0.00
15	Quercetin	y = 2E+06x − 63871	0.9936	ND	ND	18.40 ± 0.45	ND	ND
16	p-coumaric acid	y = 1E+06x − 82666	0.9985	ND	ND	3.61 ± 0.05	ND	ND
17	4-hydroxybenzoic acid	Y = 1E+06x − 14490	0.9992	ND	ND	5.76 ± 0.26	ND	ND
Total				0	3.18	337.03	14.85	0.31

DW, dried weight; Fr-PE, petroleum ether fraction; Fr-CH₂Cl₂, dichloromethane fraction; Fr-EtOAc, ethyl acetate fraction; Fr-nBuOH, n-butanol fraction; Fr-H₂O, H₂O fraction.