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- Title
Data Fusion of Fourier Transform Mid-Infrared (MIR) and Near-Infrared (NIR) Spectroscopies to Identify Geographical Origin of Wild Parispolyphylla var. yunnanensis.
- Authors
Pei, Yi-Fei; Zuo, Zhi-Tian; Zhang, Qing-Zhi; Wang, Yuan-Zhong; Huck, Christian; Bec, Krzysztof B.
- Abstract
Origin traceability is important for controlling the effect of Chinese medicinal materials and Chinese patent medicines. Paris polyphylla var. yunnanensis is widely distributed and well-known all over the world. In our study, two spectroscopic techniques (Fourier transform mid-infrared (FT-MIR) and near-infrared (NIR)) were applied for the geographical origin traceability of 196 wild P. yunnanensis samples combined with low-, mid-, and high-level data fusion strategies. Partial least squares discriminant analysis (PLS-DA) and random forest (RF) were used to establish classification models. Feature variables extraction (principal component analysis—PCA) and important variables selection models (recursive feature elimination and Boruta) were applied for geographical origin traceability, while the classification ability of models with the former model is better than with the latter. FT-MIR spectra are considered to contribute more than NIR spectra. Besides, the result of high-level data fusion based on principal components (PCs) feature variables extraction is satisfactory with an accuracy of 100%. Hence, data fusion of FT-MIR and NIR signals can effectively identify the geographical origin of wild P. yunnanensis.
- Subjects
PARIS (France); MULTISENSOR data fusion; FOURIER transforms; FOURIER transform infrared spectroscopy; MULTIPLE correspondence analysis (Statistics); FOURIER transform spectroscopy; DISCRIMINANT analysis
- Publication
Molecules, 2019, Vol 24, Issue 14, p2559
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules24142559