枫香树叶抗菌活性研究

目的探讨枫香树叶的体外抗菌活性。方法采用琼脂扩散法和试管连续稀释法测定枫香树叶对常见致病菌和条件致病菌的体外抗菌活性及最低抑菌浓度(MIC)。结果枫香树叶对大肠埃希菌、白假丝酵母菌无抗菌作用;枫香树叶对金黄色葡萄球菌、白色葡萄球菌、福氏志贺氏菌、伤寒沙门氏菌、铜绿假单胞菌皆有抗菌作用,抑菌圈直径在13~25 mm之间。不同方法提取的药液的抗菌作用有明显差别,其中枫香树叶水煎液抗菌作用最好,对金黄色葡萄球菌、白色葡萄球菌、福氏志贺氏菌、伤寒沙门氏菌、铜绿假单胞菌的最低抑菌浓度分别为0.5,1,0.5,0.5,0.25 g/ml。结论枫香树叶对金黄色葡萄球菌、白色葡萄球菌、福氏志贺氏菌、伤寒沙门氏菌、铜绿假单胞菌有较好的抗菌作用。

Studies on Antimicrobial Activity of Liquidambar formosana Hance's Leaf

Objective To research antimicrobial activity of Liquidambar formosana Hance's leaf.Methods By methods of agar plate diffusions and tube continuous dilution,to measure antimicrobial activity and minimal inhibitory concentration(MIC) of Liquidambar formosana Hance's leaf against pathogen and conditioned pathogen.Results(1) Liquidambar formosana Hance's leaf had not antimicrobial activity on E.coli,S.albicans.(2) Liquidambar formosana Hance's leaf had antimicrobial activity against S.aureus,S.epidermidis,S.flexneri,Salmonella Typhi,P.aeruginosa,the diameter of bacteriostatic circle was between 13 and 25 millimetre.The antimicrobial activity was significant different in different extracted drug liquid,among which the antimicrobial activity of water extraction of Liquidambar formosana Hance's leaf was the best,the minimal inhibitory concentration against S.aureus S.epidermidis,S.flexneri,Salmonella Typhi,P.aeruginosa,is 0.5,1,0.5,0.5,0.25 g/ml,respectively.Conclusion Liquidambar formosana Hance's leaf has good antimicrobial activity against S.aureus,S.epidermidis,S.flexneri,Salmonella Typhi and P.aeruginosa.