有些植物成分可与受体非特异性结合,故对短序鹅掌柴、海通、瓜木、钩藤4种植物,用不同的溶剂分成不同部位,用于受体结合实验。对活性部位,通过受体筛选进一步分出单体。化学成分为三萜、三萜皂甙、黄酮、生物碱和寡糖。有些鞣质常被认为与蛋白质非特异性结合,也对其进行分离。 Some plant components can bind non-specifically to the receptors. Therefore, four plants of the short-sequence Schefflera japonica, Haitong, Melon, and Uncaria are separated into different parts using different solvents for receptor binding experiments. For the active site, the monomers were further separated by receptor screening. The chemical components are triterpenes, triterpene saponins, flavonoids, alkaloids and oligosaccharides. Some tannins are often considered to bind nonspecifically to proteins and are also isolated.