Fast determination of total ginsenosides content in ginseng powder by near infrared reflectance spectroscopy

Hua-cai Chen; Xing-dan Chen; Yong-jun Lu; Zhi-qiang Cao

doi:10.1117/12.667468

2 February 2006 Fast determination of total ginsenosides content in ginseng powder by near infrared reflectance spectroscopy

Hua-cai Chen, Xing-dan Chen, Yong-jun Lu, Zhi-qiang Cao

Author Affiliations +

Proceedings Volume 6026, ICO20: Biomedical Optics; 60261C (2006) https://doi.org/10.1117/12.667468
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

Near infrared (NIR) reflectance spectroscopy was used to develop a fast determination method for total ginsenosides in Ginseng (Panax Ginseng) powder. The spectra were analyzed with multiplicative signal correction (MSC) correlation method. The best correlative spectra region with the total ginsenosides content was 1660 nm~1880 nm and 2230nm~2380 nm. The NIR calibration models of ginsenosides were built with multiple linear regression (MLR), principle component regression (PCR) and partial least squares (PLS) regression respectively. The results showed that the calibration model built with PLS combined with MSC and the optimal spectrum region was the best one. The correlation coefficient and the root mean square error of correction validation (RMSEC) of the best calibration model were 0.98 and 0.15% respectively. The optimal spectrum region for calibration was 1204nm~2014nm. The result suggested that using NIR to rapidly determinate the total ginsenosides content in ginseng powder were feasible.

Citation Download Citation

Hua-cai Chen, Xing-dan Chen, Yong-jun Lu, and Zhi-qiang Cao "Fast determination of total ginsenosides content in ginseng powder by near infrared reflectance spectroscopy", Proc. SPIE 6026, ICO20: Biomedical Optics, 60261C (2 February 2006); https://doi.org/10.1117/12.667468

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