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地榆为常用中药,系蔷薇科植物Sanguisorba officinalis L.的干燥根部。主产江苏、河北等地。中医用作止血药及治疗烫伤等症。近代报告,抗菌试验对革兰氏阴性肠內致酸病菌、绿脓杆菌、金黄色葡萄球菌、溶血性链球菌均有抑制作用;药理试验有降低血压作用。关于化学成分方面,日本的藤井、岛田、松川以及阿部、小竹等曾报告,地榆根中含有地榆皂甙(Sanguisorbin,(C_(38)H_(60)O_7),含量达2.5—4％,熔点272.5—274.5℃,水解后得地榆皂甙元,熔点为272—273℃。1964年和田博等人证明,地榆皂甙元为tomentosolic acid,属于三萜类皂甙元,并含大量鞣质,此外Kostir报告,用乙醚提得一种熔点68℃的化合
Mantle is a commonly used traditional Chinese medicine that is the dried root of the Rosaceae plant Sanguisorba officinalis L. The main production of Jiangsu, Hebei and other places. Chinese medicine is used as a hemostatic agent and to treat scalds. In recent reports, antibacterial tests had inhibitory effects on gram-negative intestinal pathogenic bacteria, Pseudomonas aeruginosa, Staphylococcus aureus, and hemolytic streptococci; pharmacological tests had a role in lowering blood pressure. Regarding chemical composition, Fujii, Shimada, Matsukawa, Abe, and Kotake, etc. from Japan have reported that the root of mantle contains Sanguisorbin ((C_(38)H_(60)O_7) with a content of 2.5–4%. , 272.5-274.5 ° C melting point, obtained after hydrolysis of diterpene saponin yuan, melting point of 272-273 ° C. He Tianbo and others in 1964 proved that Diosaponin yuan is tomentosolic acid, belonging to triterpenoid saponin yuan, and contains a large number of tannins In addition, Kostir reports that a compound with a melting point of 68° C. is obtained with ether.