In- vitro Antibacterial Activity of Ethanol- Extract of Galla Chinensis against Staphycoccus Aureus / 中药新药与临床药理

ABSTRACT

Objective To evaluate the in- vitro antibacterial activity of e thanol- extract of Galla Chinensis against Staphycoccus aureus (S. aureus).Meth ods The minimum inhibitory concentration (MIC50) of ethanol- extract of Galla Chinensis against 112 strains of S. aureus was detected by using agar dilution method.Results The MIC50 and MIC90 of ethanol- extract of Galla Chinensis aga inst 84 strains of MRSA (methicillin- resistant staphylococcus aureus) were 0. 315, 0.315 mg/mL, and those against 28 strains MSSA (methicillin- sensitive sta phylococcus aureus) were 0.63 and 0.315 mg/mL respectively.Conclusion Ethanol - extract of Galla Chinensis has a strong antibacterial activity against S.aure us.