Table 2 Caffeic acid content of obtained SFE extract by SC-CO2 extraction
Total no. of runs | Pressure (bar) | Static time (min) | Temperature (oC) | Caffeic acid content (µg/g dw) |
|---|---|---|---|---|
1 | 200 | 60 | 30.00 | 41.32 ± 2.31c |
2 | 200 | 30 | 40.00 | 32.15 ± 3.56e |
3 | 200 | 90 | 40.00 | 20.21 ± 3.12i |
4 | 200 | 60 | 50.00 | 28.23 ± 1.84 g |
5 | 350 | 30 | 30.00 | 36.38 ± 0.95d |
6 | 350 | 90 | 30.00 | 22.54 ± 4.23 h |
7 | 350 | 60 | 40.00 | 72.11 ± 1.05a |
8 | 350 | 30 | 50.00 | 12.17 ± 4.78j |
9 | 350 | 90 | 50.00 | 18.76 ± 7.10 k |
10 | 500 | 60 | 30.00 | 44.23 ± 1.47b |
11 | 500 | 30 | 40.00 | 40.21 ± 5.49c |
12 | 500 | 90 | 40.00 | 22.45 ± 4.11 h |
13 | 500 | 60 | 50.00 | 30.41 ± 7.08f |