Evaluation of free radical scavenging and pancreatic lipase inhibitory effects of Aquilaria agallocha extracts

침향 추출물의 라디칼 및 췌장 지방분해 효소저해 활성 평가

  • Lee, Ha Yeong (Institute for Korea Traditional Medical Industry) ;
  • Lee, In-Chul (Department of Cosmetic Science and Technology, Seowon University) ;
  • Kwak, Jae Hoon (Faculty of Biotechnology Convergence, Daegu Haany University) ;
  • Kim, Tae Hoon (Department of Food Science and Biotechnology, Daegu University)
  • 이하영 (한국한방산업진흥원) ;
  • 이인철 (서원대학교 화장품과학과) ;
  • 곽재훈 (대구한의대학교 바이오산업융합학부) ;
  • 김태훈 (대구대학교 식품공학과)
  • Received : 2015.04.23
  • Accepted : 2015.05.28
  • Published : 2015.06.30


In a continuing screening of selected medicinal plants native to South Korea, the antioxidant and pancreatic lipase inhibitory activities of an aqueous methanolic extract from the heartwood of Aquilaria agallocha were investigated. Eighty percent of the methanolic extract of A. agallocha was further divided into $CH_2Cl_2$, EtOAc and n-BuOH in order to yield four solvent-soluble portions, namely $CH_2Cl_2$-soluble, EtOAc-soluble, n-BuOH-soluble and $H_2O$ residue. The antioxidant properties were evaluated by employing radical scavenging assays using 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) ($ABTS^+$) radicals, while the anti-obesity efficacy of A. agallocha extracts and solvent-soluble portions were tested by porcine pancreatic lipase assay. All tested samples showed dose-dependent radical scavenging and pancreatic lipase inhibitory activities. Among the tested extracts and solvent-soluble portions, the $CH_2Cl_2$-soluble portion showed much higher radical scavenging activity and pancreatic lipase inhibitory properties when compared with other solvent-soluble portions. This result suggested that there was a significant relationship between the total phenolic content and biological efficacies, and A. agallocha extract might be considered as a new potential source of natural antioxidants and as a pancreatic lipase inhibitory source. A more systematic investigation of this biomass will be performed for further investigation of activity against antioxidative and anti-obesity effects.


Supported by : 한국연구재단


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