원문정보
초록
영어
This study examined the physiological activities as well as the total polyphenol and flavonoid content of water extract (WE), ethanol extract (EE) and hot water extract of Calystegia japonica leaves under high pressure (HWE). The xanthine oxidase inhibitory rate of EE was the highest with a value of 98.89% at a concentration of 1.0 mg/mL, whereas the rate of WE and HWE was over 90% at a concentration of 0.3 mg/mL. The superoxide dismutase (SOD)-like activity of HWE was the highest at 18.88%. The nitrite scavenging abilities were 64.59-66.46% at conditions of pH 1.2 and 1.0 mg/mL, and 52.78-55.89% at pH 3.0. The electron donating ability of EE was the highest with a value of 84.80% at a concentration of 0.1 mg/mL. All extracts showed the highest degree of electron donating at the concentration of 0.1 mg/ mL, and this effect decreased as the extract concentration increased. The EE had the highest content of total polyphenol compound (173.89 mg/g) and flavonoid compounds (40.68 mg/g).
목차
서론
재료 및 방법
실험 재료
추출물 제조
Xanthine oxidase 저해 활성
SOD 유사활성능(Superoxide dismutase-like activity) 측정
아질산염 소거능(Nitrite-scavenging ability) 측정
전자공여능(Electron donating ability) 측정
총 폴리페놀 함량
총 플라보노이드 함량
통계처리
결과 및 고찰
추출 수율
Xanthine oxidase 저해활성
SOD 유사활성능
아질산염 소거능
전자공여능
폴리페놀 함량과 플라보노이드 함량
요약
문헌