| 摘要 |
PURPOSE: An antibacterial flavaspidic acid compound and an antibacterial composition containing thereof are provided to secure the antibacterial effect for methicillin resistant Staphylococcus aureus. CONSTITUTION: An antibacterial flavaspidic acid compound is marked with chemical formula 1. In the chemical formula 1, R is either a methyl group or an ethyl group. The flavaspidic acid compound is separated from an ethanol extract of Crassirhizomae Rhizoma. The flavaspidic acid compound has the antibacterial activation for more than one strain selected from the group consisting of Staphylococcus sp., Bacillus sp., Streptococcus sp., and E.coli.
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