Table 1.
Contents of curcumin, bisdemethoxycurcumin, demethoxycurcumin and total curcuminoids (g/100 g dried powder) in non-roasted turmeric, light-roasted turmeric and dark-roasted turmeric samples.
| Material | Curcumin | Demethoxy-Curcumin | Bisdemethoxy-Curcumin | Total Curcuminoid |
|---|---|---|---|---|
| Non-roasted turmeric | 4.611 a ± 0.042 | 2.228 ± 0.110 | 1.146 ± 0.071 | 7.985 a ± 0.207 |
| Light-roasted turmeric | 4.635 a ± 0.073 | 2.157 ± 0.127 | 1.154 ± 0.043 | 7.945 a ± 0.064 |
| Dark-roasted turmeric | 3.060 b ± 0.030 | 2.168 ± 0.225 | 1.149 ± 0.028 | 6.376 b ± 0.197 |
Results are expressed as means ± standard deviation (SD) of three tests. Values with different superscript letters indicate significant difference (p < 0.05) compared with other values of the same column, assessed by one-way ANOVA followed with Tukey’s post-hoc test.