【摘要】 用平板抑菌法检测了贯叶连翘总提取物对细菌的抗菌谱范围,用最低抑菌浓度(MIC)检测法、最低杀菌浓度(MBC)检测法检测了其抗菌作用的强弱。结果表明提取物对供试革兰氏阳性菌菌株均有较强的抑菌和杀菌作用,对极少数革兰氏阴性菌菌株有较弱的抑菌作用,无杀菌作用。该结果提示提取物抗菌作用可能与细菌细胞壁的结构与组成相关。更多还原

【Abstract】 The antibacterial spectrum of the total extract of Hypericum perforatum L.and the extents of its antibacterial effects on clinically isolated bacteria were investigated.Inhibition zones,minimum inhibitory concentrations(MIC)and minimum bactericidal concentrations(MBC)were tested.The results showed that the total extract had strong inhibitory and bactericidal effects on the clinically isolated Gram-positive bacteria but had weak inhibitory effects on a few Gram-negative bacteria.These results indicate that its antibacterial effects might be mainly relevant to the structure and constituents of bacterial cell wall.更多还原