PMID- 28832506 OWN - NLM STAT- MEDLINE DCOM- 20180503 LR - 20181207 IS - 1420-3049 (Electronic) IS - 1420-3049 (Linking) VI - 22 IP - 9 DP - 2017 Aug 23 TI - Determination and Visualization of Peimine and Peiminine Content in Fritillaria thunbergii Bulbi Treated by Sulfur Fumigation Using Hyperspectral Imaging with Chemometrics. LID - 10.3390/molecules22091402 [doi] LID - 1402 AB - Rapid, non-destructive, and accurate quantitative determination of the effective components in traditional Chinese medicine (TCM) is required by industries, planters, and regulators. In this study, near-infrared hyperspectral imaging was applied for determining the peimine and peiminine content in Fritillaria thunbergii bulbi under sulfur fumigation. Spectral data were extracted from the hyperspectral images. High-performance liquid chromatography (HPLC) was conducted to determine the reference peimine and peiminine content. The successive projection algorithm (SPA), weighted regression coefficient (Bw), competitive adaptive reweighted sampling (CARS), and random frog (RF) were used to select optimal wavelengths, while the partial least squares (PLS), least-square support vector machine (LS-SVM) and extreme learning machine (ELM) were used to build regression models. Regression models using the full spectra and optimal wavelengths obtained satisfactory results with the correlation coefficient of calibration (r(c)), cross-validation (r(cv)) and prediction (r(p)) of most models being over 0.8. Prediction maps of peimine and peiminine content in Fritillaria thunbergii bulbi were formed by applying regression models to the hyperspectral images. The overall results indicated that hyperspectral imaging combined with regression models and optimal wavelength selection methods were effective in determining peimine and peiminine content in Fritillaria thunbergii bulbi, which will help in the development of an online detection system for real-world quality control of Fritillaria thunbergii bulbi under sulfur fumigation. FAU - He, Juan AU - He J AD - Zhejiang Academy of Traditional Chinese Medicine, Key Laboratory of Research and Development of Chinese Medicine of Zhejiang Province, Hangzhou 310007, China. hej0516@126.com. FAU - He, Yong AU - He Y AD - College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China. yhe@zju.edu.cn. FAU - Zhang, And Chu AU - Zhang AC AD - College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China. chuzh@zju.edu.cn. LA - eng PT - Journal Article DEP - 20170823 PL - Switzerland TA - Molecules JT - Molecules (Basel, Switzerland) JID - 100964009 RN - 0 (Cevanes) RN - 70FD1KFU70 (Sulfur) RN - JKN43410XZ (peiminine) SB - IM MH - Cevanes/analysis/*chemistry MH - Fritillaria/*chemistry MH - Fumigation/*methods MH - Regression Analysis MH - *Spectrum Analysis/methods MH - *Sulfur/chemistry PMC - PMC6151643 OTO - NOTNLM OT - Fritillaria thunbergii bulbus OT - near-infrared hyperspectral imaging OT - peimine OT - peiminine OT - prediction map COIS- The authors declare no conflicts of interest. EDAT- 2017/08/24 06:00 MHDA- 2018/05/04 06:00 PMCR- 2017/08/23 CRDT- 2017/08/24 06:00 PHST- 2017/07/24 00:00 [received] PHST- 2017/08/21 00:00 [revised] PHST- 2017/08/21 00:00 [accepted] PHST- 2017/08/24 06:00 [entrez] PHST- 2017/08/24 06:00 [pubmed] PHST- 2018/05/04 06:00 [medline] PHST- 2017/08/23 00:00 [pmc-release] AID - molecules22091402 [pii] AID - molecules-22-01402 [pii] AID - 10.3390/molecules22091402 [doi] PST - epublish SO - Molecules. 2017 Aug 23;22(9):1402. doi: 10.3390/molecules22091402.