Table 6.
Extract | Concentration (µg/mL) | IC50 (µg/mL) | Activity | ||||||
---|---|---|---|---|---|---|---|---|---|
6.25 | 12.5 | 25 | 50 | 100 | 200 | 400 | |||
Hexane leaf extract | — | 16.64 ± 0.61 | 19.32 ± 0.58 | 19.72 ± 0.47 | 23.82 ± 3.53 | 26.63 ± 1.22 | 3193 ± 0.00 | >1000β∗bc | Inactive |
Hexane stem extract | — | 18.48 ± 1.01 | 22.11 ± 1.24 | 23.63 ± 2,86 | 27.14 ± 0.66 | 30.63 ± 0.49 | 36.30 ± 1.01 | >1000β∗ac | Inactive |
Hexane root extract | — | 17.63 ± 7.72 | 21.48 ± 0.50 | 22.6.7 ± 4.20 | 24.69 ± 0.19 | 27.03 ± 0.58 | 33.37 ± 1.83 | >1000β∗ab | Inactive |
EA leaf extract | 16.24 ± 0.60 | 20.05 ± 0.51 | 22.47 ± 0.46 | 24.92 ± 3.48 | 29.13 ± 1.36 | 32.91 ± 0.00 | — | 534.2β∗ | Weak |
EA stem extract | 22.84 ± 1.81 | 23.92 ± 1.87 | 24.72 ± 2.81 | 27.24 ± 1.00 | 31.63 ± 0.48 | 37.91 ± 0.33 | — | 454.2β∗f | Weak |
EA root extract | 21.92 ± 0.89 | 23.18 ± 0.09 | 23.09 ± 2.01 | 23.65 ± 1.03 | 28.08 ± 0.58 | 34.33 ± 1.80 | — | 434.1β∗d | Moderate |
Ethanol leaf extract | — | 34.89 ± 1.62 | 38.41 ± 0.84 | 41.47 ± 0.92 | 43.84 ± 2.80 | 46.93 ± 2.40 | 51.20 ± 1.92 | 349.5∗ | Moderate |
Ethanol stem extract | — | 31.63 ± 1.76 | 34.85 ± 3.81 | 38.72 ± 4.08 | 43.99 ± 2.63 | 48.42 ± 2.12 | 54.10 ± 2.11 | 242.6∗ | Moderate |
Ethanol root extract | — | 34.17 ± 0.27 | 36.99 ± 2.67 | 42.50 ± 2.28 | 45.73 ± 1.30 | 53.56 ± 0.92 | 66.03 ± 0.40 | 108.5∗ | Strong |
Kojic acid | IC50 (5.55 µg/mL)∗ | Robust |
Note. ∗indicates a significant difference between samples in rows (p < 0.05, n = 3, post hoc test, LSD). Alphabet differences indicate no significant difference between samples in rows (p > 0.05, n = 3, post hoc test LSD). βThe IC50 value was determined by data exploration. EA: ethyl acetate.