J4 ›› 2012, Vol. 11 ›› Issue (3): 21-23.
目的：比较车前草不同提取物的抗菌活性。方法：采用分光光度比浊法，用车前草的8种溶剂室温提取物对3种细菌进行抗菌活性研究，8种溶剂分别是自来水、超纯水、无水乙醇、甲醇、乙醚、石油醚、三氯甲烷和苯。结果：车前草提取物C、D、E、G、H均有抗菌活性（P<0.05），提取物A、B没有抗菌活性（P>0.05）。结论：车前草的不同有机溶剂提取物均有良好的体外抗菌活性。
Objective: To compare the antibacterial ability of extracts that was extracted by different dissolvent from plantain.
Methods: Tap-water, ultra-pure water, ethanol, methanol, ether, petroleum ether, chloroform and benzene were used to extract the antibacterial ingredients of plantain at room temperature; three kind bacteria were medium containing different extracts, and Spectrophotometry assays were performed to measure the antibacterial ability of extracts. Results: The antibacterial ability of extracts according to C,D,E,G,H （P<0.05）priority was ingredient extracted. Ingredients extracted by Tap-water, ultra-pure water display non-antibacterial ability（P>0.05）. Conclusion: Organic solvents were more effective as dissolvent to extract antibacterial ingredients of plantain.
