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Color discrimination and gas chromatography-mass spectrometry fingerprint based on chemometrics analysis for the quality evaluation of Schizonepetae Spica

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  • Xindan Liu
  • Ying Zhang
  • Menghua Wu
  • Zhiguo Ma
  • Hui Cao

Abstract

Schizonepetae Spica (SS), the dried spike of Schizonepeta tenuifolia Briq., is a traditional Chinese medicinal herb. According to the color of persistent calyx, SS is categorized into two classes: the yellowish-green-type and the brownish-type. Based on the chemometrics analysis of gas chromatography-mass spectrometry (GC-MS), a novel model of identifying and evaluating the quality of SS in different colors was constructed for the first time in this work. 20 batches SS samples of different colors were collected and used to extract essential oils. The average essential oils yield of SS in yellowish-green color was significantly higher than that of SS in brownish color from the same origin (p

Suggested Citation

  • Xindan Liu & Ying Zhang & Menghua Wu & Zhiguo Ma & Hui Cao, 2020. "Color discrimination and gas chromatography-mass spectrometry fingerprint based on chemometrics analysis for the quality evaluation of Schizonepetae Spica," PLOS ONE, Public Library of Science, vol. 15(1), pages 1-15, January.
    • Handle: RePEc:plo:pone00:0227235
    DOI: 10.1371/journal.pone.0227235
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