Table 1.
Cytotoxicity of bark essential oil and active fractions against Hep G2 cells.
| Specimen | Concentration (μg/mL) |
Cytotoxicity * (%) |
IC50 * (μg/mL) |
|---|---|---|---|
| Bark oil | 12.5 | 10.23 ± 0.98 | 54.31 ± 0.60 a |
| 25 | 22.20 ± 0.10 | ||
| 50 | 49.47 ± 0.17 | ||
| 100 | 77.80 ± 0.17 | ||
| S2 fraction | 12.5 | 18.81 ± 0.90 | 32.22 ± 4.84 b |
| 25 | 26.43 ± 9.70 | ||
| 50 | 84.44 ± 1.75 | ||
| 100 | 90.62 ± 0.33 | ||
| S3 fraction | 12.5 | 44.37 ± 4.50 | 21.17 ± 1.09 c |
| 25 | 55.98 ± 3.57 | ||
| 50 | 82.61 ± 0.70 | ||
| 100 | 93.38 ± 0.23 |
Results are mean ± SD; *: 24 h of treatment; IC50 value: half maximal inhibitory concentration. Different letters (a–c) in the Table indicate significantly different at the level of p < 0.05 according to Scheffe’s test.