Quantitative Analysis of <i>Polygonatum sibiricum</i> Polysaccharide Using Near-Infrared Spectrum Transfer and Hybrid Model

Jiaying Lu; Yujia Dai; Yueyue Wang; Songwei Zeng

doi:10.3788/LOP240547

Laser & Optoelectronics Progress, Volume. 61, Issue 21, 2130001(2024)

Quantitative Analysis of Polygonatum sibiricum Polysaccharide Using Near-Infrared Spectrum Transfer and Hybrid Model

Jiaying Lu¹, Yujia Dai², Yueyue Wang², and Songwei Zeng^2、*

Author Affiliations

¹College of Mathematics and Computer Science, Zhejiang A&F University, Hangzhou 311300, Zhejiang , China

²College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University, Hangzhou 311300, Zhejiang , China

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Figures & Tables(9)

Fig. 1. Polygonatum sibiricum samples with different physical states. (a) Unprocessed; (b) original sample; (c) slice sample; (d) powder sample

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Fig. 2. Structure of RBF nueral network

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Fig. 3. Near-infrared spectra of Polygonatum sibiricum samples with different physical states. (a) Original mean near-infrared spectra; (b) mean near-infrared spectra after pre-treatment

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Fig. 4. Distribution of characteristic variables for Polygonatum sibiricum samples with different physical states

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Fig. 5. Effect of window size on model

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Fig. 6. Near-infrared spectrum after transferring. (a) Original sample; (b) slice sample

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Fig. 7. Regression results of mixed sample models

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Table 1. Comparison of prediction results for different sample models

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Table 1. Comparison of prediction results for different sample models

Model	Testing set	R²	RMSE /%	MAE /%
Original sample	Original sample	0.944	1.307	0.946
Slice sample	Slice sample	0.978	0.865	0.693
Powder sample	Powder sample	0.986	0.616	0.518
	Original sample	0.950	1.234	0.910
	Slice sample	0.974	0.947	0.657

Table 2. Comparison of predicted results for mixed sample models with different transfer algorithms
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Table 2. Comparison of predicted results for mixed sample models with different transfer algorithms
Type Algorithm R² RMSE /% MAE /%
Linear No transfer 0.671 2.963 2.218
CTCCA 0.939 1.269 0.988
DS 0.943 1.238 0.974
PDS 0.953 1.123 0.887
Nonlinear RBF 0.991 0.497 0.383

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Jiaying Lu, Yujia Dai, Yueyue Wang, Songwei Zeng. Quantitative Analysis of Polygonatum sibiricum Polysaccharide Using Near-Infrared Spectrum Transfer and Hybrid Model[J]. Laser & Optoelectronics Progress, 2024, 61(21): 2130001

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