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麻叶荨麻籽抑菌成分和抑菌特性的研究
引用本文:程珍,李冠,齐丽杰.麻叶荨麻籽抑菌成分和抑菌特性的研究[J].生物技术,2005,15(5):30-32.
作者姓名:程珍  李冠  齐丽杰
作者单位:新疆大学生命科学及技术学院,新疆,乌鲁木齐,830046
摘    要:目的:为了确定麻叶荨麻籽的抑菌成分和其抑菌特性。方法:以麻叶荨麻籽的不同提取物为抑菌剂进行抑菌。结果:麻叶荨麻籽的抑菌活性部位是石油醚和乙酸乙脂提取物,其中石油醚提取物的抑菌作用最强,对大肠杆菌和枯草芽孢杆菌的最低抑菌浓度是1.25mg/mL,金黄色葡萄球菌是2.5mg/mL。麻叶荨麻籽抗菌活性成分是:酚类、鞣质、有机酸等化合物。石油醚提取物对三种细菌脲酶活性均有不同程度的抑制作用。结论:麻叶荨麻籽提取物是较为有效的抑菌物。

关 键 词:麻叶荨麻籽  提取物  抑菌
文章编号:1004-311X(2005)05-0030-03
收稿时间:2005-05-19
修稿时间:2005-07-04

Studies on Anti Microbial Component and Activity of Seeds of Urtica cannabina
CHENG Zhen,LI Guan,QI Li-jie.Studies on Anti Microbial Component and Activity of Seeds of Urtica cannabina[J].Biotechnology,2005,15(5):30-32.
Authors:CHENG Zhen  LI Guan  QI Li-jie
Institution:College of Life Science and Technology of Xinjiang University, Urumqi 830046, China
Abstract:Objective:To study the antibacterial activity of extracts from seeds of Urtica cannabina.Methods:The different extracts from seeds of Urtica cannabina were used as antimicrobial agents.Results:petroleum aether and ethyl acetate-soluble fraction have inhibition activity.The activity of petroleum aether fraction is the most significant.The MIC of extraction from Urtica cannabina against Escherichia coli and Bacillus subtillis was 1.25mg/mL,and the MIC against Staphalococcusau reus was 2.5mg/mL.The main antibacterial constituents are focused on hydroxybenzene,tannins,organic acid.The results show petroleum aether agents restrained urease activity of germ.Conclusion:The extracts from seeds of Urtica cannabina was a sort of effective antimicrobial angent.
Keywords:seeds of Urtica cannabina  extracts  antibacterium
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