The essential oil obtained by steam distillation from medicinal plants of Cinnamomum cassia and Prunellae Herba. Analysis of essential oils were performed on GC/MS selective detector. Separations were performed fused silica capillary column. The carrier gas was ultra pure helium with a flow of 1 ㎖/min and the splitless injector temperature was set as 280 °C. The column temperature program was as follows: initial temperature of 70 °C for 4 min, and increased by 2 °C /min 70 to 100 °C (held 2 min), After that the temperature was varied from 100 to 200 °C at 5 °C/min (held 20 min), increase to 280 °C (held 5 min) at 10 °C /min, in a total run time of 73 min. Ten volatile flavor components were identified from C. cassia and ten volatile flavor components were identified from Prunellae Herba. Strong inhibition of growth of Vibrio parahaemolyticus was obtained with all doses of C. cassia tested. Moreover, antimicrobial activity of C. cassia occurred in a dose dependant manner.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 식물체 재료 및 정유 성분 추출
  2.2. 사용균주 및 배지
  2.3. 정유 성분 추출
  2.4. GC-MS를 이용한 정유 성분분석
  2.5. 정유 성분동정
  2.6. 정유 성분의 항균활성 검색
 3. 결과 및 고찰
  3.1. 육계의 정유 성분
  3.2. 하고초의 정유 성분
  3.3. 비브리오 패혈증균(V. parahaemolyticus)에 대한항균효과
 4. 결 론
 참 고 문 헌

• 이종록(대구한의대학교 제약공학과, 대구한의대학교 국가지정 한약자원 향장소재은행) | Jong-Rok Lee (Department of pharmaceutical Engineering, Daegu Haany University, Korea Herbal Cosmeceutical Material Bank, Daegu Haany University)
• 박문기(대구한의대학교 제약공학과, 대구한의대학교 국가지정 한약자원 향장소재은행) | Moon-Ki Park (Department of pharmaceutical Engineering, Daegu Haany University, Korea Herbal Cosmeceutical Material Bank, Daegu Haany University) Corresponding author
• 박숙자(대구한의대학교 한의과대학) | Sook-Jahr Park (College of Oriental Medicine, Daegu Haany University)
• 정대화(대구한의대학교 한방생명자원연구센터) | Dae-Hwa Jung (Research Center for Biomedical Resources of Oriental Medicine, Daegu Haany University)