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The antibacterial activities of quercetin to bacteria,such as Escherichia coli,Staphylococcus aureus were preliminarily tested by Neo-Sensitab disk-diffusion method.The antibacterial activity to Staphylococcus aureas was the most remarkably,minimal bactericidal concentration(MBC) was less than 0.0061 μmol·mL-1.The antibacterial activity to Bacillus mucilaginosus was the secondly remarkably,minimal inhibitory concentration(MIC) was less than 0.0061 μmol·mL-1.Quercetin had obviously antibacterial activities to Escherichia coli,Bacillus thuringiensis,Bacillus subtilis,Pseudomonas aeruginosa,too.MIC was respectively 0.0242 μmol·mL-1,0.0061 μmol·mL-1,0.0242 μmol·mL-1,0.0121 μmol·mL-1.MBC was respectively 1.5522 μmol·mL-1,6.2086 μmol·mL-1,3.1043 μmol·mL-1,1.5522 μmol·mL-1.However,quercetin had no antibacterial activity to Ochrobactrum anthropi.Quercetin showed extensive antibacterial activity against Gram-negative bacteria and even more strongly than against Gram-positive bacteria.
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Basic Information:
China Classification Code:Q946
Citation Information:
[1]QIN Xiao-rong1,ZHANG Ming-jin1,2,GAO Xu-na1,LIN Yi1,MA Li1,HE Si-yi1 (1.College of Chemical Engineering and Technology,Wuhan University of Science and Technology,Wuhan 430081,China,2.Wuhan Institute of Physics and Mathematics,The Chinese Academy of Sciences,Wuhan 430071,China).Study on the Antibacterial Activity of Quercetin[J].Chemistry ＆ Bioengineering,2009,26(04):55-57+78.
2009-04-25
2009-04-25