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Paris Polyphylla var. yunnanensis (PPY) has been used in traditional medicine for the treatment of parotitis and abscess. Previous studies showed the quality of PPY was associated with cultivation years. In this study, we applied ultra-high performance liquid chromatography–tandem mass spectrometry (UHPLC–MS/MS) and Fourier transform infrared (FT-IR) spectroscopy to measure the variation of saponins...
Background Gentiana rigescens, an important medicinal plant in China, has been widely cultivated in Yunnan province, China. Previous studies were focused on analysis and determination of the metabolites isolated from this species, the accumulation of these metabolites during growth period are not yet clear. In this study, samples for the experiments were obtained by tissue culture. FT-IR and LC-MS/MS...
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