Functional Investigation of Ogaza Extract

오가자 추출물의 기능성 검정

  • Jung, Sung-Keun (Major in Biomodulation, Department of Agricultural Biotechnology, Seoul National University) ;
  • Lee, Hyong-Joo (Major in Biomodulation, Department of Agricultural Biotechnology, Seoul National University)
  • 정성근 (서울대학교 농생명공학부 바이오모듈레이션 전공) ;
  • 이형주 (서울대학교 농생명공학부 바이오모듈레이션 전공)
  • Received : 2010.05.10
  • Accepted : 2010.05.24
  • Published : 2010.05.30

Abstract

Multiple lines of study have shown that Acanthopanax species have anti-oxidant and chemopreventive effect. However, the suitability of Acanthopanax sessilifloru fruit (Ogaza) as a functional food source remains to be investigated. Therefore, we have investigated the effect of Ogaza as an anti-oxidant and anti-inflammatory substance. The phenolic content of Ogaza is 56.1${\pm}$5.2 mg gallic acid equivalents (GAE) per 1 g of Ogaza. The 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid (ABTS) radical scavenging effects of Ogaza extract at 0.25, 0.5, 1, or 2 mg/mL were 34.0, 73.0, 194.3, or 339.7 $\mu g$/mL vitamin C equivalent antioxidnat capacity (VCEAC), respectively. Ogaza extract (1 or 2 mg/mL) inhibited LPS-induced TNF-$\alpha$ production (decrease of 22${\pm}$2% or 19${\pm}$6%, respectively). It also inhibited LPS-induced IL-6 production (decrease of 18${\pm}$2% or 24${\pm}$3%, respectively). In addition, Ogaza extract (0.25, 0.5, 1, or 2 mg/mL) inhibited COX-2 luciferase activity (decrease of 80${\pm}$1%, 83.${\pm}$7%, 96${\pm}$4%, or 98${\pm}$2%, respectively). Overall, these results indicated that Ogaza is promising as a functional food source due to its antioxidant and anti-inflammatory effects.

본 연구에서는 강원도에 자생하는 오가피(Acanthopanax sessilifloru) 열매(Ogaza)를 80% MeOH 추출하고, 기능성 식품소재로써의 기능성을 규명하였다. 오가자 추출물의 페놀성 화합물은 오가자 1 g 당 56.1${\pm}$5.2 mg의 gallic acid로 나타났다. 오가자 추출물 0.25, 0.5, 1, 2 mg/mL은 각각 vitamin C 34.0, 73.0, 194.3, 339.7 $\mu g$/mL에 해당하는 항산화 효과를 보였다. 오가자 추출물 1 과 2 mg/mL의 농도에서 LPS로 유도한 TNF-$\alpha$와 IL-6의 생성량을 각각 22${\pm}$2, 19${\pm}$6% 그리고 18${\pm}$2, 24${\pm}$3% 억제하였다. 또한, 자외선 조사에 의해 증가한 COX-2 luciferase 활성이 오가자 추출물 (0.25, 0.5, 1, 2 mg/mL)에 의해 각각 80${\pm}$1, 83.${\pm}$7, 96${\pm}$4, 98${\pm}$2% 억제됨을 확인하였다. 본 연구를 통해 잎 이나 뿌리에 비해 연구 및 활용도가 낮았던 오가피 열매의 항산화활성 및 항염증 효능을 규명함으로써, 오가자가 고부가가치 기능성 식품소재로 활용 될 수 있는 가능성을 제시하였다.

Keywords

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