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pp.765-771
본 연구는 생식으로만 이용하고 있는 어수리 잎을 이용한 기능성 제품을 개발하는데 기초자료를 제공하기 위하여 물과 에탄올을 사용하여( 50% 에탄올/ 50% 에탄올/ water/ water) 어수리를 추출하여 항산화 활성을 살펴보았다. 항산화성 물질 중 총 폴리페놀 함량은 에서 50% 에탄올 추출물이 64.73 mg GAE/g으로 가장 높은 함량을 나타내었다. 항산화활성을 측정한 결과 에서 50% 에탄올로 추출하였을 때 DPPH radica
Anti-oxidative activities of Heracleum moellendorffii Hance extracts were measured after extraction with 50% (v/v) ethanol or water (at or ). The total polyphenol content was highest (64.73 mg GAE/g) in extract from 50% ethanol extraction at . In extracts obtained by water extraction at and , the total polyphenol contents were 39.78 mg GAE/g and 23.17 mg GAE/g, respectively. The antioxidant activities of the ethanol extract at were highest, as assessed by DPPH radical scavenging activity (69.14% at 50 ppm), reducing power (OD 0.93), and radical-scavenging activity (85.62% at 1,000 ppm). At , the antioxidant activity of the 50% (v/v) ethanol extract was 8-20% higher than that of the water extract. Also, the chemical composition of extract from ethanol extraction at was analyzed. The levels of moisture, crude protein, crude fat, and crude ash were 6.38%, 4.35%, 0.67%, and 1.96%, (all w/w), respectively. The Na, K, Mg, Zn, Fe, Ca, and P contents of the extract were 53.41, 398.26, 5.80, 0.40, 5.27, 3.56, and 47.17 mg/100 g, respectively. The total levels of polyphenolic compounds and flavonoids in the ethanol extract were 64.73 mg GAE/g and 49.54 mg RE/g.
