| 摘要 |
[Objectives] To evaluate the quality of Cardamine macrophylla Willd as Tibetan and Qiang medicinal materials, so as to improve its quality standard and evaluate the quality of C. macrophylla Willd in western Sichuan Province. [Methods] C. macrophylla Willd produced from western Sichuan Province was used as the sample, and the contents of moisture, total ash, acid-insoluble ash, extract, total flavonoids and quercetin in the ground part of C. macrophylla Willd were determined in accordance with the methods of Chinese Pharmacopoeia (2020 edition). With the above seven indicators as evaluation indicators, the quality of medicinal materials was comprehensively evaluated by cluster analysis and principal component analysis (PCA). [Results] According to the results of each indicator, the moisture content of C. macrophylla Willd sample should not exceed 11.00%, the total ash content should not exceed 18%, the acid-insoluble ash content should not exceed 6%, the extract content should not be less than 19%, the total flavone content (calculated by quercetin) should not be less than 2%, and the quercetin content should not be less than 0.15%. [Conclusions] The sample S7 has the best quality and S6 has the worst quality. In this study, the quantitative analysis method of total flavonoids (quercetin) and quercetin in C. macrophylla Willd was established, and the limits of each indicator were preliminarily formulated. |
