Research on rapid discrimination of different processing degrees of Angelicae Sinensis Radix with yellow rice wine based on intelligent sense and near-infrared technology combined with chemometrics
Objective A rapid discrimination model for accurately distinguishing the different processing degrees of Danggui (Angelicae Sinensis Radix,ASR) with yellow rice wine was established,which laid a foundation for the intelligent production of ASR. Methods The colorimetric values were extracted by the colorimeter,the odor information was obtained by the ultra fast gas phase electronic nose,the near infrared spectroscopy (NIRS) information was obtained by the near infrared spectrometer,and the data were processed and analyzed by chemometrics,so as to establish a fast discrimination model for different processing degrees of ASR. Results The discrimination model based on colorimetric values combined with principal component analysis (PCA),odor information combined with discriminant factor analysis (DFA) and orthogonal partial least squares-discriminant analysis (OPLS-DA),and spectral information combined with OPLS-DA can all classify samples into four categories. A total of 22 odor components were identified in this study,and ten odor components,including α-pinene,methyl decanoate,β-pinene,2-methylfuran,δ-dodecalactone,octyl butanoate,ethyl cyclohexanecarboxylate,isopropyl cinnamate,limonene,2-isobutyl-3-methoxypyrazine were selected as volatile substances that caused differences in the processing of ASR. Conclusion Based on intelligent sensory technology and NIRS technology,this study successfully achieved the rapid and accurate distinction of the different processing degrees of ASR with yellow rice wine,providing a reference for the rapid identification and quality control of the processing degrees of ASR with yellow rice wine and other traditional Chinese medicine decoction pieces.
Angelicae Sinensis Radix processed with yellow rice wineprocessing degreecolor valuesultra fast gas phase electronic nosenear infrared spectroscopychemometricsodor differential markersrapid discrimination
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