유근피(Ulmus pumila)로부터 분리한 phenol성 물질의 건강기능식품 활성
Healthy Functional Food Properties of Phenolic Compounds Isolated from Ulmus pumila
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초록
유근피에 함유된 페놀성 물질은 70% ethanol을 용매로 하여 12시간 추출하였을 때 17.9±1.0 mg/g으로 가장 많이 용출되었다. 유근피 추출물의 항산화력을 측정한 결과 전자공여능은 50 μg/mL 이상의 phenolic 농도에서 물추출물과 70% ethanol 추출물 모두에서 80% 이상의 높은 전자공여능이 확인되었다. ABTS radical cation decolorization을 측정한 결과 유근피는 물과 70% ethanol 추출물에서 96.8±2.9%의 높은 항산화활성이 측정되었으며, antioxidant protection factor 측정에서는 물추출물과 에탄올 추출물 모두 200 μg/mL의 phenolic 농도에서 BHA 보다 높은 2.5 PF의 높은 항산화력이 확인되었다. 유근피 추출물의 thiobarbituric acid reactive substance를 측정한 결과 물 추출물과 에탄올 추출물 전 농도에서 약 80%의 높은 항산화 효과를 나타내었다. 유근피 추출물의 항고혈압 효과를 살펴보기 위하여 angiotensin converting enzyme 저해활성을 측정한 결과 물 추출물에서 약 50%, 70% ethanol 추출물에서 58.5%의 저해활성을 나타내었으며, 200 μg/mL phenolics의 처리농도에서 물 추출물이 77.4%, 70% ethanol 추출물에서 90.6%의 저해활성을 나타내었다. 유근피 추출물의 항관절염 효과를 살펴보기 위하여 xanthin oxidase 저해 활성을 측정한 결과 물 추출물에서는 억제 효과를 관찰할 수 없었고, 70%ethanol 추출물에서 30%의 억제효과를 나타내었으며, 200 μg/mL phenolics의 처리 농도에서 48.1%의 억제력을 나타내었다. 유근피 추출물의 염증 억제효과를 측정하기 위하여 hyaluronidase 저해활성을 확인한 결과 물 추출물과 ethanol 추출물에서 70% 이상의 높은 저해 양상을 나타내었으며, 50 μg/mL phenolics의 낮은 농도로 처리하였을 경우에도 80%의 항염증효과를 나타내었고, 처리한 phenolic compound의 농도가 높아질수록 억제효과가 높아져 농도 의존적인 양상을 나타내었다. 기능성 식품으로의 활용을 위한 방안으로 유근피 추출물을 함유한 tablet(정제)를 개발하고, 개발된 제품의 관능평가를 실시한 결과 색깔의 관능평점이 8.3으로 평가되었고, 맛과 향은 8.8과 8.6의 높은 관능평가 점수를 획득하였으며, 전체적인 기호도 역시 8.7점으로 높은 평가를 받았다.
Abstract
The phenolic compounds which were extracted with 70% ethanol from Ulmus pumila for 12 hr were the highest as 17.9±1.0 mg/g. DPPH scavenging activity of 70% ethanol extracts was also the highest as 89.5±1.9% and it was confirmed to be high as 80% over in both of water and 70% ethanol extracts containing 50 μg/mL over phenolic concentration. ABTS radical cation decolorization activities of water and 70% ethanol extracts were higher as 96.8±2.9%, antioxidant protection factor (PF) was 2.0 PF in 70% ethanol and showed higher activities in both of water and 70% ethanol extracts containing 200 μg/mL phenolic concentration as 2.5 PF than BHA. TBARs of 70% ethanol extracts was 86.5±4.6%, it showed high anti-oxidative activity in 50∼200 μg/mL phenolic concentrations of water and 70% ethanol extracts as 80% over. The angiotensin converting enzyme (ACE) inhibitory activity of Ulmus pumila extracts against hypertension was 77.4% and 90.6% in water and 70% ethanol extracts of 200 μg/mL phenolic concentration. Xanthine oxidase inhibitory activity of Ulmus pumila extracts for anti-gout effect was not observed in water extracts, but it showed 30% inhibitory activity in 70% ethanol extracts, and 48.1% at 200 μg/mL phenolics concentration.
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