Screening of Korean Medicinal and Food Plants with Antioxidant Activity

한국 약용 및 식용식물들의 항산화성 식물탐색

  • Chung, Il-Min (College of Agriculture and Life and Science, KunKuk University) ;
  • Kim, Kwang-Ho (College of Agriculture and Life and Science, KunKuk University) ;
  • Ahn, Joung-Kuk (College of Agriculture and Life and Science, KunKuk University)
  • 정일민 (건국대학교 농업생명과학대학) ;
  • 김광호 (건국대학교 농업생명과학대학) ;
  • 안종국 (건국대학교 농업생명과학대학)
  • Published : 1998.12.31

Abstract

Sixty medicinal and food plants native to Korea were mainly selected with old traditional habit and antioxidant activity was investigated. The 80% EtOH extracts of sixty medicinal and food plants were screened for antioxidant activity. Antioxidant activity was measured by the TBA (Thiobarbituric acid), DPPH (1, 1-Diphenyl-2-picrylhydrazyl), SOD (superoxide dismutase) which was evaluated by the nitro blue tetrazolium(NBT) reduction method. Among sixty plants, black Glycine max(87. 3%) and Solanum nigrum (80.6%) exhibited the highest antioxidant activity by TBA and DPPH methods, respectively. Also, 10 species extracts including black Glycine max showed the high activity value in these two methods. The SOD characteristics on black Glycine max seed extracts which showed the highest SOD activity (53.5%) exhibited four major SODs; two Cu/ZnSODs and two FeSODs. However, Adenophaora vertidllata which showed lowest SOD value (10.4%) had only Cu/Zn SOD. No varietal differences in the high SOD value were detected in the Cu/Zn SOD isozyme patterns.