胆木叶抗MRS活性研究  

Study on Anti-MRS Activity of Nauclea officinalis Leaves

作　　者：苏奎[1,2] 龚敏[1] 周静[1] 邓世明[2] 

机构地区：[1]石河子大学食品学院,新疆石河子832000 [2]海南大学海洋学院,海南海口570228

出　　处：《安徽农业科学》2009年第25期12014-12016,共3页Journal of Anhui Agricultural Sciences

基　　金：国家科技支撑计划(2007BAI27B05)

摘　　要：以耐甲氧西林金黄色葡萄球菌(MRS)、大肠杆菌、普通金黄色葡萄球菌、普通变形杆菌、枯草芽孢杆菌为供试菌种,采用滤纸片琼脂扩散法研究胆木叶提取物的体外抑菌活性。结果表明,以40%以上体积分数乙醇为提取剂时,胆木叶提取物对MRS具有抑菌活性,且乙醇的体积分数越大,提取物的抑菌活性越强;胆木叶乙醇提取物中的中高极性溶剂萃取段抑菌活性最强。胆木叶水煮液对大肠杆菌具有抑菌活性,醇提液对大肠杆菌只有极弱的抑菌活性。胆木叶醇提液和水煮液对普通金黄色葡萄球菌、普通变形杆菌、枯草芽孢杆菌只有极弱的抑菌活性。With methicillin-resistant staphylococcus aureus （ MRS）, escherichia coil, staphylococcus arureus, proteus vulgaris, bacillus subtills as the tested strains, the vitro antibacterial activity of extracts from Nauclea officeinalis leaves was determined by filter paper agar diffusion method. The results showed that the extract from N. officeinalis leaves had antibacterial activity on MRS when ethanol which volume fraction was more than 40% was taken as extractant, and the bigger the volume fraction of ethanol was the stronger the antibacterial activity of the extract was. The antibacterial activity of middle and high polar solvent extraction section of ethanol extract from N. officeinalis leaves was the strongest. The decoction of N. officeinalis leaves had antibacterial activity on escherichia coli, while the alcohol extract only had exceedingly weak antibacterial activity on escherichia coll. The alcohol extract and decoction of N. officeinalis leaves only had exceedingly weak antibacterial activities on staphylococcus arureus, proteus vulgaris and bacillus subtilis.

关 键 词：胆木 MRS 抑菌活性 

分 类 号：S567.19[农业科学—中草药栽培]