Table 2. Central composite design, and contents of protopanaxatriol ginsenosides and total ginsenoside for response surface analysis of the acetic acid soaking conditions of taegeuk ginseng
Exp. No.1) | Acetic acid soaking conditions | Contents of protopanaxatriol ginsenosides (mg/g) | Total ginsenoside |
Acetic acid conc. (%) | Soaking time (h) | Re | Rf | Rg1 | Rg2 | Rh1 |
1 | 20 | 3.5 | 1.30±0.072) | 0.57±0.01 | 1.48±0.08 | 0.21±0.00 | 0.21±0.01 | 7.06±0.27 |
2 | 20 | 1.5 | 2.69±0.13 | 0.93±0.03 | 2.14±0.13 | 0.38±0.01 | 0.21±0.01 | 11.85±0.51 |
3 | 10 | 3.5 | 1.87±0.11 | 0.57±0.01 | 1.32±0.07 | 0.29±0.01 | 0.09±0.00 | 7.69±0.18 |
4 | 10 | 1.5 | 2.07±0.09 | 0.89±0.01 | 2.27±0.16 | 0.19±0.00 | 0.18±0.00 | 12.04±0.61 |
5 | 15 | 2.5 | 1.50±0.05 | 0.52±0.00 | 1.51±0.07 | 0.12±0.00 | 0.08±0.00 | 8.54±0.10 |
6 | 15 | 2.5 | 1.36±0.06 | 0.41±0.00 | 1.41±0.06 | 0.10±0.00 | 0.02±0.00 | 7.70±0.09 |
7 | 25 | 2.5 | 1.99±0.12 | 0.90±0.02 | 2.28±0.12 | 0.23±0.00 | 0.19±0.01 | 13.62±0.71 |
8 | 5 | 2.5 | 2.57±0.13 | 0.77±0.01 | 1.63±0.08 | 0.33±0.01 | 0.04±0.00 | 11.10±0.48 |
9 | 15 | 4.5 | 2.34±0.15 | 0.57±0.00 | 1.62±0.09 | 0.25±0.01 | 0.09±0.00 | 9.66±0.37 |
10 | 15 | 0.5 | 3.04±0.13 | 1.09±0.08 | 2.56±0.14 | 0.35±0.02 | 0.08±0.00 | 15.51±0.63 |
The number of experimental conditions by central composite design.
Values represent the mean±SD (n=3).