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Based on ultra high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS), a rapid and simultaneous quantitative method for the measurement of seven components (kinsenoside; rutin; kaempferol-3-O-rutinoside; quercimeritrin; narcissin; isorhamnetin-3-O-glucoside; quercetin) of A. roxburghii was established. The separation was performed over 8.0 minutes on a Waters Acquity UPLC BEH Shield RP18 (2.1 mm×100 mm; 1.7 μm) with a mobile phase consisting of acetonitrile (A) and 0.1% formic acid water solution (B) with gradient elution at a flow rate of 0.2 mL·min-1; the column temperature was 30℃ and the injection volume was 2 μL. Electrospray spray ionization source (ESI source) was used for mass spectrometry, and positive and negative ion modes were detected at the same time. The results showed good linearity (R2 ≥ 0.998 0), with good precision, repeatability and stability, and the average recovery was 97.71%-103.33%. Through cluster heat map and redundancy analysis, we found that kinsenoside was mainly distributed in stems, followed by leaves, and the lowest content in roots. The content of kinsenoside increased significantly in the stems of plants 6 months, but less change was evident in the roots and leaves. Flavonoids and flavonoid glycosides were mainly distributed in leaves. The UHPLC-MS/MS method established in this paper can be used for the quality control of A. roxburghii and provides a reference for establishing a more comprehensive quality detection method for this medicinal.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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