桫椤茎中牡荆素的抑菌活性  

Antimicrobial Activities of Vitexin from Alsophila spinutosa

作　　者：李书华[1] 赵琦[2] 成英[1] 刘芳[1] 

机构地区：[1]乐山师范学院化学与生命科学学院,四川乐山614000 [2]成都大学生物产业学院,四川成都610106

出　　处：《食品研究与开发》2013年第14期4-6,共3页Food Research and Development

基　　金：四川省教育厅资助科研项目(13ZA0105);四川省旅游发展研究中心资助项目(LYM12-36)

摘　　要：从体外试验的角度观察牡荆素的抑菌作用。以大肠杆菌、金黄色葡萄球菌、枯草芽孢杆菌为供试菌种,采用滤纸片法和试管内药液2倍稀释法测定牡荆素的抑菌圈直径和最低抑菌浓度(Minimal inhibitive concentration,MIC)。牡荆素对大肠杆菌、金黄色葡萄球菌、枯草芽孢杆菌均有明显的抑制作用,对大肠杆菌的最低抑菌浓度(MIC)为100μg/mL,对金色葡萄球菌的最低抑菌浓度(MIC)为25μg/mL,对枯草芽孢杆菌的最低抑菌浓度(MIC)为100μg/mL。牡荆素具有良好的体外抑菌作用。To study the antimicrobial activities of vitexin from Alsophila spinutosa.With Staphylococcus aureus,Escherichia coli and Bacillus sutilis as tested bacterium,the bacteriostatic effects of vitexin from Alsophila spinulosa were studied by filter paper method and double broth dilution method.The MIC of vitexin on Escherichia coli was 100 μg/mL,the MIC of vitexin on Staphylococcus aureus was 25 μg/mL,and the MIC of vitexin on Bacillus sutilis was 100 μg/mL.The vitexin has good bacterostatic action.

关 键 词：牡荆素 抑菌作用 最低抑菌浓度 

分 类 号：TS201.2[轻工技术与工程—食品科学]