Table 1.
Sample | Total Phenolic Content (mg GAE/g) |
Individual Compounds (mg/g) | |||||
---|---|---|---|---|---|---|---|
ISC1 | ISC2 | HYP1 | HYP2 | Chlorogenic Acid | Verbascoside | ||
Hydroethanolic extract | 48.25 ± 1.44 b | 9.57 ± 0.33 d | 16.82 ± 0.39 c | 15.46 ± 0.32 c | 3.97 ± 0.09 c | 1.88 ± 0.02 c | 8.20 ± 0.04 c |
Petroleum ether fraction | 13.45 ± 1.08 a | 0.67 ± 0.03 a | 2.83 ± 0.05 a | 1.95 ± 0.05 a | 0.31 ± 0.01 a | 0.21 ± 0.01 a | 1.62 ± 0.01 a |
Ethyl acetate fraction | 88.48 ± 1.29 c | 5.41 ± 0.20 b | 26.15 ± 0.66 d | 5.77 ± 0.16 b | 10.62 ± 0.27 d | 0.93 ± 0.02 b | 16.35 ± 0.03 d |
Butanol fraction | 92.20 ± 0.50 d | 27.14 ± 0.72 e | 32.4 ± 0.79 e | 26.47 ± 0.54 d | 11.9 ± 0.22 e | 2.85 ± 0.03 d | 31.01 ± 0.01 e |
Water fraction | 46.65 ± 1.18 b | 8.03 ± 0.30 c | 12.98 ± 0.23 b | 15.49 ± 0.34 c | 2.49 ± 0.04 b | 1.84 ± 0.02 c | 4.88 ± 0.01 b |
Different letters (a–e) in the same columns indicate a significant difference (p < 0.05) in content between extract and its fractions according to the post hoc Tukey’s test. ISC1: Isoscutellarein 7-o-[6‴-o-acetyl-β-d-allopyranosyl-(1→2)]-β-d-glucopyranoside;.ISC2: 4′-o-methyl-Isoscutellarein 7-o-[6‴-o-acetyl-β-d-allopyranosyl-(1→2)]-β-d-glucopyranoside;.HYP1: 4′-o-methyl-Hypolaetin 7-o-[6‴-o-acetyl-β-d-allopyranosyl (1→2)]-β-d-glucopyranoside;.HYP2: 4′-o-methyl-Hypolaetin 7-o-[6‴-o-acetyl-β-d-allopyranosyl (1→2)]-6‴-o-acetyl-β-d-glucopyranoside.