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通常利用大黄所含番泻甙(sennosides)和游离蒽醌(free anthraquinones)的定量分析,以评价其品质优劣。这些致泻成分的含量随着植物生长和季节的变化而变化,也受到生药收获后不同加热干燥或冷冻干燥加工方法的影响。作者试验这些加工条件对掌叶大黄 Rheum palmatum L.致泻成分番泻甙 A
Quantitative analysis of sennosides and free anthraquinones in rhubarb is usually used to evaluate the quality of the product. The content of these diarrheal components varies with the growth and season of the plant, and is also influenced by different heat drying or freeze-drying processing methods after harvest of the crude drug. The authors tested these processing conditions on Rheum palmatum L. diarrhea sennae A