Table 1.
Experimental design matrix to screen important variables for total extraction yield of luteolin and apigenin.
| Run | Factor A Liquid-solid ratio (mL/g) |
Factor B Microwave irradiation power (W) |
Factor C Microwave irradiation time (min) |
Response Total extraction yield (μg/g) |
|---|---|---|---|---|
| 1 | 8 | 230 | 8 | 228 |
| 2 | 8 | 120 | 10 | 163 |
| 3 | 8 | 230 | 8 | 231 |
| 4 | 8 | 120 | 6 | 150 |
| 5 | 6 | 230 | 6 | 179 |
| 6 | 6 | 120 | 8 | 117 |
| 7 | 10 | 120 | 8 | 175 |
| 8 | 10 | 230 | 10 | 251 |
| 9 | 6 | 230 | 10 | 187 |
| 10 | 8 | 230 | 8 | 231 |
| 11 | 8 | 385 | 10 | 182 |
| 12 | 8 | 230 | 8 | 230 |
| 13 | 8 | 385 | 6 | 175 |
| 14 | 10 | 230 | 6 | 239 |
| 15 | 8 | 230 | 8 | 230 |
| 16 | 6 | 385 | 8 | 138 |
| 17 | 10 | 385 | 8 | 204 |