유근피 추출물의 생리활성
Physiological Activities of Ulmus pumila L. Extracts
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초록
본 연구는 느릅나무과(Ulmaceae)에 속하는 유근피( Ulmuspumila L.)추출물을 기능성식품에 활용하기 위하여 폴리페놀 함량, 항산화능 및 암세포 증식 억제능의 기능성에 대하여 조사하였다. 물 추출물 및 에탄올 추출물의 수율은 각각 12.7%와 12.0%였으며, polyphenol 화합물의 함량은 623.5 ± 2.4 mg/100g 및 710.4 ± 2.1 mg/100g이었고, 전자공여능은 농도에 비례하여 높아, 1,000 ppm에서 물추출물은 76%, 에탄올 추출물은 64%로 물 추출물이 에탄올 추출물 보다 높았다. SOD유사활성능은 전 농도에서 물 추출물이 에탄올 추출물보다 높아 1,000 ppm에서는 물 추출물이 53%, 에탄올 추출물이 38%이었고, 아질산염 소거능은 1,000 ppm에서 에탄올 추출물이 47%, 물 추출물이 43%로 에탄올 추출물이 물 추출물보다 다소 높았다. 항암성은 MDA cell에서 1,000 ppm의 경우 물 추출물은 62%, 에탄올 추출물은 42%이었으며, A549 cell에서 1,000 ppm의 경우 물 추출물은 60%, 에탄올 추출물은 45%로 물 추출물이 에탄올 추출물보다 암세포증식 억제력이 월등히 높았다.
Abstract
This study was carried out for the functional investigation of the Ulmus pumila L. extracts for use in functional-food processing. Extracts of Ulmus pumila L. were obtained using distilled water and 70% ethanol, and the extracts were tested for their electron-donating ability, SOD-like activity, nitrate-scavenging ability, and anticancer (MDA and A 549 cells) activity. The extraction yields of the water and ethanol extracts were 12.7 and 12.0%, respectively; the polyphenol contents were 623.5 ± 2.4 and 710.5 ± 2.1 mg/100 g; the electron-donating ability was high in proportion with the density; and the water extract was higher than the ethanol extract (76 and 64%, respectively) at 1,000 ppm. In all the 1,000 ppm densities, the SOD-like activity of the water extract was far higher than that of the ethanol extract (53 and 38%, respectively), and the nitrite-scavenging ability of the ethanol extract was higher than that of the water extract (47 and 43%, respectively). As for the anticancer ability at 1,000 ppm, it was 62% in the water extract and 42% in the ethanol extract in the MDA cell, and 60% in the water extract and 45% in the ethanol extract in the A 549 cell. Thus, the proliferation inhibition ability of the water extract against cancer cells was found to be far higher than that of the ethanol extract (60 and 45%, respectively).
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