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Analysis of Terpenoids as Volatile Compound Released During the Drying Process of Cryptomeria japonica

삼나무 건조 중 발생하는 휘발성 유기화합물 Terpenoids의 분석

  • Lee, Su-Yeon (Dept. of Forest Sciences, College of Agriculture & Life Sciences, Seoul National University) ;
  • Gwak, Ki-Seob (Dept. of Forest Sciences, College of Agriculture & Life Sciences, Seoul National University) ;
  • Kim, Seon-Hong (Dept. of Forest Sciences, College of Agriculture & Life Sciences, Seoul National University) ;
  • Lee, Jun-Jae (Dept. of Forest Sciences, College of Agriculture & Life Sciences, Seoul National University) ;
  • Yeo, Hwan-Myeong (Dept. of Forest Sciences, College of Agriculture & Life Sciences, Seoul National University) ;
  • Choi, In-Gyu (Dept. of Forest Sciences, College of Agriculture & Life Sciences, Seoul National University)
  • 이수연 (서울대학교 농업생명과학대학 산림과학부) ;
  • 곽기섭 (서울대학교 농업생명과학대학 산림과학부) ;
  • 김선홍 (서울대학교 농업생명과학대학 산림과학부) ;
  • 이전제 (서울대학교 농업생명과학대학 산림과학부) ;
  • 여환명 (서울대학교 농업생명과학대학 산림과학부) ;
  • 최인규 (서울대학교 농업생명과학대학 산림과학부)
  • Received : 2010.01.15
  • Accepted : 2010.04.07
  • Published : 2010.05.25

Abstract

The aim of this study was to investigate the terpenoids of Total Volatile Organic Compounds (VOCs) released during drying of Cryptomeria japonica using the thermal extractor (TE). Considering the drying process of C. japonica, temperatures of TE were set at $27^{\circ}C$, $60^{\circ}C$, $80^{\circ}C$, $100^{\circ}C$, and $120^{\circ}C$, respectively. As the result, the emission factors of VOCs and terpenoids were increased as temperature increased. The amount of terpenoids included in VOCs emission factors were 87.5%, 81.6%, 83.6%, 90.1%, and 97.3% depending on above temperatures, respectively. Especially at$100^{\circ}C$ and $120^{\circ}C$, the amount of terpenoids were measured more than 90%. ${\delta}$-cadinene was the highest yield at each temperature and 32 types of terpenoids were collected. Emitted terpenoids were classified into the sesquiterpene group which consists of 15 carbon sources. These 32 sesquiterpenes were used for determining the useful bioactivity such as antifungal activity by the agar dilution. As the result, they showed the antifungal activity against Trichophyton rubrum, Trichophyton mentagrophytes, Microsporum gypseum. The 5,000 ppm concentration of terpenoids showed a strong activity with 100% against the 3 fungi. At the 1,000 ppm concentration of terpenoids, the antifungal activities against three fungi were 95.2%, 98.7%, and 97.3%, and their activities were a little inhibited at 100 ppm concentration.

본 연구는 삼나무의 건조 중 발생하는 Volatile Organic Compounds (VOCs) 중 terpenoids 성분을 분석하기 위해 thermal extractor를 이용하였다. 기존의 건조 조건을 고려하여 $27^{\circ}C$,$60^{\circ}C$, $80^{\circ}C$, $100^{\circ}C$, $120^{\circ}C$에서 실험을 실시한 결과 온도 조건이 높아질수록 VOCs와 terpenoids의 방산량이 증가하였다. 방산된 VOCs 중 terpenoids 화합물이 차지하는 비율은 각각의 온도에 대해 87.5%, 81.6%, 83.6%, 90.1%, 97.3%로 특히$100^{\circ}C$$120^{\circ}C$에서는 90% 이상의 높은 비율을 차지하였다. 상대적으로 가장 높은 비율을 차지하고 있는 성분은 ${\delta}$-cadinene이었으며 이 외에도 총 32종류의 다양한 terpenoids 성분이 검출되었다. 특히 방산된 성분들은 모두 탄소 15개로 이루어진 sesquiterpene 류에 속하는 성분으로서 삼나무를 이루는 주요 성분임을 확인하였다. 방산 된 sesquiterpenes 화합물의 이용을 모색하고자 피부사상균에 대한 항진균 활성을 한천희석법을 이용하여 평가 해 보았다. 그 결과 공시 균주 Trichophyton rubrum, Trichophyton mentagrophytes, Microsporum gypseum 에 대해 모두 활성을 나타냈다. 시료의 농도가 5000 ppm일 때에는 3 균주에 대해 모두 100%의 활성을 나타냈으며 1000 ppm일 때에는 95.2%, 98.7%, 97.3%의 활성을, 100 ppm일 때에는 90.5%, 43.6%, 85.9%의 활성을 각각 보였다.

Keywords

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