Table 2 Experimental and predicted values for secoiridoid and xanthone glycoside yield (%) optimized with central composite design (CCD)
Run order | Treatment | Secoiridoid Yield (%) | Xanthone Yield (%) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
SA (mM) (A) | CS (mg L− 1) (B) | Amarogentin (I) | Swertiamarin (II) | Mangiferin (III) | |||||||
Experimental | Predicted | Experimental | Predicted | Experimental | Predicted | ||||||
RSM | ANN | RSM | ANN | RSM | ANN | ||||||
1 | 3.000 | 4.000 | 0.170 | 0.173 | 0.170 | 1.020 | 1.064 | 1.020 | 2.610 | 2.640 | 2.610 |
2 | 15.000 | 4.000 | 0.247 | 0.249 | 0.250 | 2.860 | 2.905 | 2.860 | 2.910 | 2.951 | 2.910 |
3 | 3.000 | 20.000 | 0.225 | 0.230 | 0.225 | 2.235 | 2.241 | 2.235 | 3.550 | 3.533 | 3.550 |
4 | 15.000 | 20.000 | 0.350 | 0.354 | 0.350 | 4.450 | 4.457 | 4.450 | 4.110 | 4.104 | 4.110 |
5 | 0.514 | 12.000 | 0.172 | 0.167 | 0.171 | 1.320 | 1.294 | 1.320 | 3.080 | 3.075 | 3.080 |
6 | 17.485 | 12.000 | 0.312 | 0.308 | 0.311 | 4.190 | 4.163 | 4.193 | 3.720 | 3.699 | 3.720 |
7 | 9.000 | 0.686 | 0.210 | 0.208 | 0.210 | 1.695 | 1.641 | 1.695 | 2.550 | 2.504 | 2.550 |
8 | 9.000 | 23.313 | 0.330 | 0.323 | 0.330 | 3.570 | 3.570 | 3.572 | 3.930 | 3.950 | 3.932 |
9 | 9.000 | 12.000 | 0.430 | 0.428 | 0.427 | 4.860 | 4.870 | 4.830 | 4.254 | 4.288 | 4.253 |
10 | 9.000 | 12.000 | 0.435 | 0.428 | 0.427 | 4.830 | 4.870 | 4.830 | 4.237 | 4.288 | 4.253 |
11 | 9.000 | 12.000 | 0.425 | 0.428 | 0.427 | 4.875 | 4.870 | 4.867 | 4.320 | 4.288 | 4.283 |
12 | 9.000 | 12.000 | 0.430 | 0.428 | 0.427 | 4.987 | 4.870 | 4.970 | 4.357 | 4.288 | 4.329 |
13 | 9.000 | 12.000 | 0.420 | 0.428 | 0.427 | 4.800 | 4.870 | 4.867 | 4.275 | 4.288 | 4.253 |