Journal
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Volume 262, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2021.120119
Keywords
Bran-fried Atractylodis Rhizoma; Intelligent color recognition; Near-infrared spectroscopy; Data mining; Pattern recognition; Content prediction
Categories
Funding
- Special project of Hubei provincial central government guiding local science and technology development [2020ZYYD030]
- Major special projects of science and technology in Hubei Province [2020ACA007]
- National key R & D program funding of China [2018YFC1707000]
- Hubei University of Chinese Medicine Young Crops Program Project [2021ZZX003]
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This study explored the correlation between color and NIR features with atractylodin content in bran-fried Atractylodis Rhizoma (BFAR) in Traditional Chinese Medicine. A rapid recognition model was established to identify the optimal processing degree for BFAR preparation. The study successfully differentiated three types of BFAR and established a prediction model for atractylodin content, providing a potential method for quality evaluation of Chinese Materia Medica processing.
Unclear established standard of bran-fried Atractylodis Rhizoma (BFAR), a commonly used drug in Traditional Chinese Medicine (TCM), compromised its clinical efficacy. In this study, we explored the correlation between color and near-infrared spectroscopy (NIR) feature with content of atractylodin, then established a rapid recognition model for the optimal degree of processing for BFAR preparation. The results of the Pearson analysis indicated that the color values were significantly and positively correlated with atractylodin content. The back propagation artificial neural network algorithm and cluster analysis revealed the color of different BFAR could be accurately divided into three categories; subsequently, the color range for the optimal degrees of stir-frying was established as follows: R[red value (105.79- 127.25)], G[green value(75.84-89.64)], B[blue value(33.33-42.73)], L[Lightness (81.26-95.09)].Using NIR, principal component analysis (PCA), partial least squares discriminant analysis (PLS-DA), and cluster analysis, three types of BFAR were accurately identified. The prediction model of atractylodin content was established using partial least squares regression analysis. The R2 of the validation set was 0.9717 and the root mean square error was 0.026. In the color judgment model, the processing degree of 8 batches of BFAR from the market is inferior. According to the NIR judgment model, the processing degree of all samples from the market is inferior. In conclusion, the best fire degree of BFAR can be identified quickly and accurately based on our established model. It is a potential method for quality evaluation of Chinese Materia Medica processing. (c) 2021 Elsevier B.V. All rights reserved.
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