The Composition of Useful Medium Chain Fatty Acids in Eight Plant Species

특이지방산의 탐색과 붓꽃류에서 중쇄지방산(myristic acid)의 확인

  • Kim, Jong-Bum (Department of Biochemistry, National Institute of Agricultural Science & Technology) ;
  • Kim, Kyung-Hwan (Department of Biochemistry, National Institute of Agricultural Science & Technology) ;
  • Hwang, Sun-Kap (Department of Biochemistry, National Institute of Agricultural Science & Technology) ;
  • Kim, Yong-Hwan (Department of Biochemistry, National Institute of Agricultural Science & Technology) ;
  • Cho, Kang-Jin (Department of Biochemistry, National Institute of Agricultural Science & Technology) ;
  • Hwang, Young-Soo (Department of Biochemistry, National Institute of Agricultural Science & Technology) ;
  • Park, Ro-Dong (Department of Agricultural Chemistry, Chonnam National University) ;
  • Kim, Jung-Bong (Department of Biochemistry, National Institute of Agricultural Science & Technology)
  • 김종범 (농업과학기술원 생화학과) ;
  • 김경환 (농업과학기술원 생화학과) ;
  • 황선갑 (농업과학기술원 생화학과) ;
  • 김용환 (농업과학기술원 생화학과) ;
  • 조강진 (농업과학기술원 생화학과) ;
  • 황영수 (농업과학기술원 생화학과) ;
  • 박노동 (전남대학교 농화학과) ;
  • 김정봉 (농업과학기술원 생화학과)
  • Published : 2001.02.28

Abstract

Several unusual fatty acids including myristic acid (14 : 0) and lauric acid (12 : 0) were investigated in the Iris family and other related plants. Especially the roots of Iris tecorum contained 75.9% myristic acid in total fatty acid contents and that of Iris germanica contained 57% myristic and 15.5% lauric acid (12 : 0) whereas 10.7% lauric acid and 9.5% capric acid (10 : 0) were detected in the roots of iris ensata as compared to the total fatty acid contents. The total fatty acid contents in the seeds of Foeniculi fructus and Torilis japonica was relatively higher 193.3 mg/g dry wt and 128.2 mg/g dry wt, respectively. 64.5% linoleic acid (18 : 2) and 48.9% ${\alpha}-linolenic$ acid (18 : 3) were observed in the seeds and leaves of iris tectorum whereas its lateral roots contained 9.5% caprylic acid (8 : 0) and 8.6% capric acid. The percentage of myristic acid of the total fatty acid in the immature seeds of iris tectorum and Iris germanica was 10.8% and 15.6%, respectively.

산업적으로 활용성이 높은 특이 지방산을 탐색하기 위하여 8종의 국내 자원식물을 재료로 하여 지방산 조성을 조사한 결과 붓꽃(Iris tectorum) 등 3가지 식물에서 myristic acid(14 : 0)와 lauric acid(12 : 0)등의 중쇄지방산이 함유되어 있음을 확인하였다. 특히 붓꽃에는 myristic acid가 전체 지방산의 75.9%를 차지하였다. 독일붓꽃(Iris germanica)에는 myristic acid와 lauric acid가 전체 지방산의 57%와 15.5% 씩 함유되어 있었다. 꽃창포(Iris ensata) 뿌리에는 lauric acid와 capric acid(10 : 0)가 각각 10.7%와 9.5% 함유되어있었으나 회향(Foeniculum vulgare)과 사상자(Torilis Japonica)의 종실에는 전체 지방산(mg/g dry wt)이 각각 193.3 mg/g과 128.2 mg/g의 높은 함량을 나타내었다. 붓꽃의 부위별 지방산 조성에서는 종실에 linoleic acid(18 : 2)가 64.5%, 잎에 ${\alpha}-linolenic$ acid(18 : 3)가 48.9% 그리고 곁뿌리(lateral root)에는 caprylic acid(8 : 0)와 capric acid가 각각 9.5%와 8.6%씩 함유되어 있었으며 붓꽃과 독일붓꽃의 미숙종자에는 myristic acid가 각각 10.8%와 15.6% 함유되었다.

Keywords