桫椤茎中牡荆素的抑菌活性
Food Research and Development(2013)
Abstract
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。
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Key words
minimal inhibitive concentration,bacteriostatic effect,vitexin
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