Skip to main content

Table 2 Experimental and predicted values for secoiridoid and xanthone glycoside yield (%) optimized with central composite design (CCD)

From: Optimization of salicylic acid and chitosan treatment for bitter secoiridoid and xanthone glycosides production in shoot cultures of Swertia paniculata using response surface methodology and artificial neural network

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