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首页> 美国卫生研究院文献>Molecules >Drying Effects on Phenolics and Free Radical-Scavenging Capacity of Rhus pachyrrhachis and Rhus virens Used in Traditional Medicine
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Drying Effects on Phenolics and Free Radical-Scavenging Capacity of Rhus pachyrrhachis and Rhus virens Used in Traditional Medicine

机译：干燥对中药大黄和大黄中酚类和自由基清除能力的影响

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Rhus pachyrrhachis and Rhus virens are medicinal plant species with important uses in northeastern Mexico. They belong to a complex of Rhus species called “lantriscos”, which are used for medicinal applications. The medicinal effects of these species are based on traditional use, however, they require phytochemical research to validate their medicinal properties, as well as structural characterization for their correct identification during the collecting practice and uses. The phytochemical potential of aqueous extracts from R. pachyrrhachis and R. virens was analyzed by the quantification of total phenolic content (TPC), free radical-scavenging potential, and total flavonoids, with a comparison of four drying methods, and some phenolic compounds were identified. Furthermore, the stems and leaves of both species were anatomically characterized to establish a differentiation. R. pachyrrhachis and R. virens showed similar values of phytochemical contents, although the TPC content (0.17 mg of gallic acid equivalent per gram of dry weight, GAE/g DW) was higher in R. virens. The drying method used affected the metabolite contents, and this behavior was related to the species. Regarding the phenolic compounds, shikimic acid, galloylquinic acid, and gallic acid were identified in both species, however, quinic acid was only found in Rhus pachyrrhachis, while vanillic acid O-hexoside was identified only in Rhus virens. At the anatomical level, the pubescence associated with trichomes on the leaves of Rhus pachyrrhachis was highlighted as the main differential characteristic.
机译：在墨西哥东北部，Rhu pachyrrhachis和Rhus virens是药用植物，具有重要用途。它们属于称为“ lantriscos”的Rhus物种的复合体，用于医学应用。这些物种的药理作用是基于传统用途的，但是，它们需要进行植物化学研究以验证其药性，并需要进行结构表征以在收集实践和使用过程中对其进行正确鉴定。通过定量四种酚类化合物的总酚含量（TPC），清除自由基的能力和总黄酮，并比较四种干燥方法，分析了从牛膝和虎疫中提取水的植物化学潜力。确定。此外，对两种物种的茎和叶进行了解剖学表征以建立分化。尽管R. virens中的TPC含量（每克干重0.17 mg没食子酸当量，GAE / g DW）较高，但R. pachyrrhachis和R. virens的植物化学含量值相似。所用的干燥方法影响了代谢物的含量，而这种行为与物种有关。关于酚类化合物，在这两个物种中均鉴定出sh草酸，没食子基奎宁酸和没食子酸，但是奎宁酸仅存在于广found香中，而香草酸O-己糖苷仅存在于杜鹃属中。在解剖学水平上，与Rhus pachyrrhachis叶片上的毛状体相关的短柔毛被突出为主要的鉴别特征。

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