西门肺草(Symphytum officinalc)的根为公认的药材,含果聚糖和尿囊素,二者均具有药用价值。根中尚有双稠吡咯啶生物碱素,它对家畜和实验动物有毒性。巴勒斯坦西门肺草(S. palaestinum)虽未被列为药用植物,但研究其化学成分并与西门肺草和化学成分相比是有意义的。化学分析所用的原材料为起源于德国的西门肺草和产于以色列的巴勒斯坦西门肺草。两种植物的根冻干,提取、分离果聚糖 The root of Symphytum officinalc is a recognized medicinal material containing fructan and allantoin, both of which have medicinal value. There is also a double pyrrolidine alkaloid in the root, which is toxic to livestock and experimental animals. Although S. palaestinum is not classified as a medicinal plant, it is of significance to study its chemical composition and compare it with the lung grass and chemical components of the genus Simonella. The raw materials used for the chemical analysis were Simon grasses originating in Germany and Papillomestra Simonskie originating in Israel. The roots of both plants are lyophilized to extract and separate fructan