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. 2019 Feb 4;9:1309. doi: 10.1038/s41598-019-38601-y

Table 1.

The results of the compounds content analysis and overview of the experimental and predicted values of PLS model.

Sample (mg/g) LQA LQT LQG GLA ISS ISG P6C% Var. ASAE (mM) Pred. ASAE (mM) REc (%)
S1a 8.470 10.034 1.621 78.446 4.040 2.263 84.204 0.2178 0.2148 −1.37
S2a 8.097 9.754 1.574 73.001 3.723 2.100 79.435 0.2110 0.2030 −3.78
S3b 8.714 9.659 1.726 77.484 3.712 2.433 84.002 0.2247 0.2078 −7.54
S4a 9.657 10.926 1.875 82.536 3.700 2.305 87.990 0.2335 0.2293 −1.82
S5a 9.624 10.892 1.884 80.195 3.584 2.308 86.982 0.2197 0.2203 0.31
S6d 8.085 13.722 3.670 60.747 4.427 3.790 111.528 0.1365
S7b 9.296 12.003 2.053 85.557 4.054 2.418 93.451 0.2120 0.2170 2.36
S8a 9.817 11.781 1.904 83.763 4.112 2.170 90.903 0.2232 0.2228 −0.16
S9a 8.080 8.412 1.951 79.059 3.521 2.755 84.559 0.1594 0.1881 18.01
S10a 8.972 11.401 2.041 76.784 4.394 2.727 93.992 0.1984 0.1923 −3.07
S11a 21.731 10.675 2.114 93.908 3.251 2.609 103.750 0.2793 0.2789 −0.16
S12a 24.364 11.781 2.068 95.158 3.589 2.285 107.459 0.2809 0.2804 −0.17
S13b 22.511 10.878 2.319 93.076 3.346 2.689 107.034 0.2504 0.2859 14.21
S14a 24.314 12.040 1.847 88.789 3.457 1.846 101.505 0.2804 0.2809 0.17
S15a 20.247 11.478 2.276 95.474 3.485 2.196 103.197 0.2458 0.2591 5.44
S16a 20.908 10.021 2.361 88.114 3.561 3.171 107.585 0.2489 0.2530 1.64
S17b 18.255 9.232 2.019 85.626 3.545 2.464 96.126 0.2148 0.2577 20.00
S18d 13.703 11.014 5.181 77.198 4.409 4.573 131.753 0.2046
S19b 14.741 11.101 2.485 82.361 4.174 3.134 105.205 0.1753 0.2238 27.62
S20a 20.158 8.646 1.506 79.109 3.216 1.828 86.665 0.2494 0.2329 −6.62
S21a 19.043 11.877 3.193 75.550 3.236 1.669 100.078 0.2250 0.2280 1.35
S22a 21.414 13.321 3.362 87.217 3.520 1.717 109.792 0.2380 0.2354 −1.13
S23b 21.846 13.897 3.412 89.752 3.596 1.858 113.235 0.2316 0.2482 7.19
S24a 22.441 13.670 2.817 85.938 3.788 2.004 110.587 0.2555 0.2604 1.90
S25a 15.160 10.320 4.952 87.349 2.959 3.292 117.473 0.2436 0.2372 −2.64
S26a 20.717 11.902 2.572 76.887 3.158 1.946 99.394 0.2318 0.2394 3.26
S27b 22.361 10.317 2.444 77.354 2.969 2.654 101.738 0.2291 0.2310 0.85
S28a 20.628 11.224 2.822 89.800 3.272 2.816 108.860 0.2488 0.2503 0.62
S29a 17.293 9.856 1.792 76.981 3.137 2.170 88.978 0.2352 0.2210 −6.02
S30a 20.202 9.227 2.517 80.700 3.108 3.084 102.551 0.2360 0.2341 −0.82
Mean 16.362 11.035 2.479 82.798 3.601 2.509 100.000 0.2321 0.2369 2.49
RSD% 36.091 13.007 36.299 9.131 11.666 25.504 11.877

LQA, liquiritin apioside; LQT, liquiritin; LQG, liquiritigenin; GLA, glycyrrhizic acid; ISS, isoliquiritoside; ISG, isoliquiritigenin; P6C%, the average content of the six compounds.

aUsed for the calibration model.

bUsed for the prediction model.

cRE, relative error.

dOutliers.