荞麦七提取物的体外抑菌活性研究  

Study on Antibacterial Activity of Extracts fromPteroxygonum Giraldii in vitro

作　　者：王晓梅[1] 郑涛 马琳[1] 俎蕾 

机构地区：[1]宝鸡文理学院化学化工学院,陕西宝鸡721013 [2]宝鸡市第三人民医院,陕西宝鸡721004

出　　处：《化学与生物工程》2015年第5期40-42,51,共4页Chemistry & Bioengineering

基　　金：陕西省科技发展计划资助项目(2010K01-201);宝鸡文理学院重点项目(ZK12013)

摘　　要：以铜绿假单胞菌、大肠杆菌、金黄色葡萄球菌及枯草芽孢杆菌为受试菌,通过最小抑菌浓度测定、抑菌圈的判断、生长曲线的绘制及菌液电导率的测定等方法,研究了荞麦七的4种提取物(水提物、蒽醌、鞣质、黄酮)的体外抑菌活性。结果表明:荞麦七水提物对枯草芽孢杆菌及铜绿假单胞菌抑制作用较强;荞麦七蒽醌对金黄色葡萄球菌及铜绿假单胞菌抑制作用较强;荞麦七鞣质对大肠杆菌、金黄色葡萄球菌、枯草芽孢杆菌抑制作用较强;荞麦七黄酮对大肠杆菌抑制作用最强。Using Pseudomonas aeruginosa ,Escherichia coli ,Staphylococcus aureus and Bacillus subtilis as tested bacteria,the antibacterial activity of 4 kinds of extracts from Pteroxygonum giraldii in vitro were stud-ied by determining the minimal inhibitory concentration,judging bacteriostatic ring,drawing growth curve and determining the electric conductivity.Results show that,water extract from Pteroxygonum giraldii has strong inhibition on Bacillus subtilis and Pseudomonas aeruginosa .Anthraquinone extracted from Pteroxygonum gi-raldii can inhibit Staphylococcus aureus and Pseudomonas aeruginosa well.Tannin extracted Pteroxygonum giraldii can inhibit strongly on Escherichia coli ,Staphylococcus aureus ,Bacillus subtilis .Flavonoids extracted from Pteroxygonum giraldii has the strongest inhibition on Escherichia coli .

关 键 词：荞麦七提取物 细菌 抑菌活性 

分 类 号：TQ461[化学工程—制药化工]