Table 2.
Orthogonal experimental design and results.
| Test group | A: Bacterial inoculation amount | B: Fermentation temperature | C: Fermentation time | Ginsenoside Rb1 yield (mg/g) |
|---|---|---|---|---|
| 1 | 1 | 1 | 1 | 15.96 |
| 2 | 2 | 2 | 2 | 20.08 |
| 3 | 3 | 3 | 3 | 18.83 |
| 4 | 1 | 2 | 3 | 20.38 |
| 5 | 2 | 3 | 1 | 20.37 |
| 6 | 3 | 1 | 2 | 14.52 |
| 7 | 1 | 3 | 2 | 19.70 |
| 8 | 2 | 1 | 3 | 13.78 |
| 9 | 3 | 2 | 1 | 19.86 |
| K1 | 56.04 | 44.26 | 56.19 | |
| K2 | 54.23 | 60.33 | 54.30 | |
| K3 | 53.21 | 58.89 | 52.99 | |
| k1 | 18.68 | 14.75 | 18.73 | |
| k2 | 18.08 | 20.11 | 18.10 | |
| k3 | 17.74 | 19.63 | 17.66 | |
| R | 0.94 | 5.36 | 1.07 |
K means the sum of data at a certain level in the column. k means the average of the sum of data at a certain level in this column. R means the range of k in this column.