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Rapid Determination of Chlorogenic Acid, Luteoloside and 3,5-O-dicaffeoylquinic Acid in Chrysanthemum Using Near-Infrared Spectroscopy

1
College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, Zhejiang Province, China
2
Zhejiang Research Institute of Traditional Chinese Medicine, Hangzhou 310023, Zhejiang Province, China
3
State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, Zhejiang Province, China
*
Authors to whom correspondence should be addressed.
Sensors 2019, 19(9), 1981; https://doi.org/10.3390/s19091981
Received: 13 March 2019 / Revised: 19 April 2019 / Accepted: 24 April 2019 / Published: 28 April 2019
(This article belongs to the Special Issue Infrared Spectroscopy and Sensors)
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Abstract

The feasibility of near-infrared spectroscopy (NIR) to detect chlorogenic acid, luteoloside and 3,5-O-dicaffeoylquinic acid in Chrysanthemum was investigated. An NIR spectroradiometer was applied for data acquisition. The reference values of chlorogenic acid, luteoloside, and 3,5-O-dicaffeoylquinic acid of the samples were determined by high-performance liquid chromatography (HPLC) and were used for model calibration. The results of six preprocessing methods were compared. To reduce input variables and collinearity problems, three methods for variable selection were compared, including successive projections algorithm (SPA), genetic algorithm-partial least squares regression (GA-PLS), and competitive adaptive reweighted sampling (CARS). The selected variables were employed as the inputs of partial least square (PLS), back propagation-artificial neural networks (BP-ANN), and extreme learning machine (ELM) models. The best performance was achieved by BP-ANN models based on variables selected by CARS for all three chemical constituents. The values of rp2 (correlation coefficient of prediction) were 0.924, 0.927, 0.933, the values of RMSEP were 0.033, 0.018, 0.064 and the values of RPD were 3.667, 3.667, 2.891 for chlorogenic acid, luteoloside, and 3,5-O-dicaffeoylquinic acid, respectively. The results indicated that NIR spectroscopy combined with variables selection and multivariate calibration methods could be considered as a useful tool for rapid determination of chlorogenic acid, luteoloside, and 3,5-O-dicaffeoylquinic acid in Chrysanthemum. View Full-Text
Keywords: Chrysanthemum; chlorogenic acid; luteoloside; 3,5-O-dicaffeoylquinic acid; near-infrared spectroscopy Chrysanthemum; chlorogenic acid; luteoloside; 3,5-O-dicaffeoylquinic acid; near-infrared spectroscopy
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Xia, Z.; Sun, Y.; Cai, C.; He, Y.; Nie, P. Rapid Determination of Chlorogenic Acid, Luteoloside and 3,5-O-dicaffeoylquinic Acid in Chrysanthemum Using Near-Infrared Spectroscopy. Sensors 2019, 19, 1981.

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