Instituto de Ecología Aplicada, Universidad Autónoma de Tamaulipas, División del Golfo 356. Ciudad Victoria, Tamaulipas 87019, Mexico.
Molecules. 2019 Jul 2;24(13):2438. doi: 10.3390/molecules24132438.
and are medicinal plant species with important uses in northeastern Mexico. They belong to a complex of 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 and 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. and 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 . 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 , while vanillic acid -hexoside was identified only in . At the anatomical level, the pubescence associated with trichomes on the leaves of was highlighted as the main differential characteristic.
和 是墨西哥东北部具有重要药用价值的植物物种。它们属于一个名为“lantriscos”的物种复合体，用于药用。这些物种的药用功效基于传统用途，但需要进行植物化学研究来验证其药用特性，并进行结构表征，以确保在采集实践和使用过程中正确识别。通过定量测定总酚含量（TPC）、自由基清除能力和总类黄酮，分析了 和 的水提物的植物化学潜力，并比较了四种干燥方法，同时鉴定了一些酚类化合物。此外，对这两个物种的茎和叶进行了解剖学特征分析，以建立区别。 和 表现出相似的植物化学含量值，尽管 的 TPC 含量（0.17 毫克没食子酸当量/克干重，GAE/gDW）较高。所使用的干燥方法影响了代谢物的含量，这种行为与物种有关。关于酚类化合物，在这两个物种中都鉴定出了莽草酸、咖啡酰奎宁酸和没食子酸，然而， 只在 中发现了奎宁酸，而香草酸 -己糖苷仅在 中被鉴定出来。在解剖学水平上， 的叶上与毛状体相关的绒毛被强调为主要的区别特征。
