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/㎖ and 0.2 g/㎖ showed a significant antibacterial activity against antibiotic resistant bacteria. Minimum inhibitory concentration (MIC) of Scutellaria baicalensis extract were appeared to 2, 048 ㎍/㎖ 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.

• 채수규 | Soo Kyu Chae