Chinese Journal of Pharmacovigilance ›› 2023, Vol. 20 ›› Issue (8): 891-898.
DOI: 10.19803/j.1672-8629.20220721

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Quantitative transfer relationships of Rubia yunnanensis Diels formula granules based on standard decoctions

WANG Xiang1,2,3, SUN Shuai1, WANG Xinguo1,2,3#, NIU Liying1,2,3,*   

  1. 1Hebei University of Chinese Medicine, Shijiazhuang Hebei 050091, China;
    2Hebei Traditional Chinese Medicine Formula Granule Engineering & Technology Innovate Center, Shijiazhuang Hebei 050091, China;;
    3Hebei Quality Engineering Research Center for Evaluation & Standardization of Traditional Chinese Medicine, Shijiazhuang Hebei 050091, China
  • Received:2022-12-15 Online:2023-08-15 Published:2023-08-07

Abstract: Objective To study the quantitative transfer relationships of Rubia yunnanensis Diels granules based on extraction rates, contents of Rubinaphthin A and characteristic chromatograms of standard decoctions. Methods The standard decoction samples of Rubia yunnanensis Diels were prepared before a method for determination of contents and characteristic chromatograms was established. The quantitative transfer relationships between herb-herbal pieces, standard decoctions, and formula granules were studied. Results The results of study on 15 batches of standard decoctions showed that the extraction rates ranged from 15.3% to 28.4%, the content of Rubinaphthin A in Rubia yunnanensis Diels ranged from 15.83 mg·g-1 to 29.39 mg·g-1 and the transfer rate ranged from 21.79% to 40.47%. A total of six characteristic chromatogram were identified, with two characteristic peaks identified for peak 1 of Rubinaphthin A and peak 4 of Rubinaphthin A. Fifteen batches of Rubia yunnanensis Diels herbs and herbal pieces and three batches of pilot formula granules from different sources were collected. The content of Rubinaphthin A in Rubia yunnanensis Diels herbs ranged from 14.32 mg·g-1 to 19.79 mg·g-1, from 12.71 mg·g-1 to 18.81 mg·g-1 in herbal pieces, and from 18.71 mg·g-1 to 19.80 mg·g-1 in formula granules. The transfer rate of herbal pieces to herbs ranged from 64.41% to 119.62%, that of standard decoction to herbal pieces from 21.79% to 40.47%, and that of herbal pieces to formula granules from 26.10% to 28.73%. Six characteristic peaks were detected in Rubia yunnanensis Diels herbs, herbal pieces and formula granules, and the relative retention time was within the specified range. Conclusion The quantitative transfer relationships between herb-herbal pieces, standard decoctions, and formula granules of Rubia yunnanensis Diels are stable and within the range of standard decoctions, indicating that the quality of Rubia yunnanensis Diels formula granules is stable and equivalent to standard decoctions.

Key words: Rubia yunnanensis Diels, rubinaphthin A, standard decoction, formula granules, characteristic chromatogram, quantitative transfer relationship, extraction rate, transfer rate

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