earticle

영어

To develop the natural antibacterial agents which don't have any toxicity against man, collected several speciesof medicinal plants were tested for their antibacterial activity from dental caries bacteria Streptococcus sanguis.The result of using paper disc method and the result of viable cell counting method, Phellodendri Cortex wasselected as antibacterial agent. The high antibacterial activity was acquired at high extraction temperature and longextraction temperature. The antibacterial of Phellodendri Cortex was not effected by the concentration of ethanol.