目的 对五倍子、儿茶、乌梅、黄连和黄芩的体外抗菌效果进行比较。方法 用新的中药抗菌实验方法 ，进行五倍子等 5种中药对 2 8株肠球菌的体外抗菌活性检测。结果与结论 5种中药对肠球菌的抑菌作用均较好 ，其中以五倍子和儿茶的抑菌效果最好 ，其 MIC90 均为 1∶ 6 40 ，而黄连、乌梅和黄芩的抑菌效果也较好 ，其 MIC90 分别为1∶ 32 0 ，1∶ 32 0和 1∶ 16 0。

Object To compare the in vitro antibacterial activities of 5 TCMs including Melaphis chinensis (Bell) Bake, Acacia catachu (L.) Milld, Armeniaca mume Sieb, Coptis chinensis Franch and Scutellaria baicalensis Georgi.. Methods Activities of the 5 drugs against 28 strains of Enterococci were determined by the new antibacterial test for TCM. Results and Conclusion All 5 TCMs showed antibacterial activities against Enterococci, with M. chinensis and A. catac hubeing the most potent. Both had the MIC9 of 1：640．A．mume, C. chinensis and S．baicalensis followed next with their MIC 90 of 1：320，1：320 and 1：160 respectively.

国家中医药管理局重点课题资助项目(编号:97Z009)