Antibacterial Activity of Scutellaria baicalensis Extract against Antibiotic Resistant Bacteria

This study was focused on the determination of antibacterial activity of $Scutellaria$ $baicalensis$ extract against antibiotic resistant bacteria( $Salmonella$ Enteritidis, $Staphylococcus$ $aureus$ and enteroaggregative $E.$ $coli$ ). Extract of $Scutellaria$ $baicalensis$ were tested for antibacterial activity by paper disc methods. The $Scutellaria$ $baicalensis$ extract in 0.1 g/ $m{\ell}$ and 0.2 g/ $m{\ell}$ showed a significant antibacterial activity against antibiotic resistant bacteria. Minimum inhibitory concentration (MIC) of $Scutellaria$ $baicalensis$ extract were appeared to 2,048 ${\mu}g/m{\ell}$ at $S.$ Enteritidis, $S.$ $aureus$ and enteroaggregative $E.$ $coli$ . Finally, the growth incubation curve was determined using $Scutellaria$ $baicalensis$ extract against $S.$ Enteritidis, $S.$ $aureus$ and enteroaggregative $E.$ $coli$ . The growth of $S.$ Enteritidis was significantly inhibited within 10 hours by the addition of at least 10,000 ppm of $Scutellaria$ $baicalensis$ extract. The 10,000 ppm of $Scutellaria$ $baicalensis$ extract retarded the growth of $S.$ $aureus$ and enteroaggregative $E.$ $coli$ more than 10 hours. In conclusion, $Scutellaria$ $baicalensis$ extract might be useful to control antibiotic resistant bacteria $in$ $vitro$ .