원문정보
Effect of Hot Water Extract of Undaria pinnatifida on the Activities of Antioxidant and Nitrite Scavenging
초록
영어
1)For the development of functional food and cosmetics using the hot water extract of Undaria pinnatifida, the concentrations of vitamin, amino acid and element and activities of antioxidant and nitrite scavenging were investigated. The results are shown as follows: Vitamin C and E concentrations were 0.301 and 0.11 mg/100 g, respectively. Mineral concentrations were an order of Ca > Mg > K > Fe. The concentrations of total amino acids were an order of Glu > Ala > Val > Leu > Gly > Pro. Total phenol concentration and DPPH radical scavenging activity were increased with the increase of the concentration of extract. Especially, when the extract concentrationwas increased from 1.0 to 10.0 mg/mL, the total phenol concentration was increased from 0.043 to 0.125 OD 725 nm. DPPH radical scavenging activity at 50 mg/mL was 70.1%. The antioxidant activity of extract was stable in range of 80 to 140℃ and pH 3-9. The nitrite scavenging activity was increased with the decreaseof pH and the increase of it’s extract concentration. Especially, it was 83.4% at 50 mg/mL (pH 1.2). These results showed that the hot water extract of U. pinnatifida can be applied to functional food and cosmetics.
목차
1. 서론
2. 재료 및 방법
2.1. 시약
2.2. 재료
2.3. 열수 추출방법
2.4. 무기물
2.5. 비타민
2.6. 총 페놀
2.7. DPPH radical 소거능
2.8. 환원력
2.9. Superoxide dismutase (SOD) 유사활성
2.10. pH 및 열 안정성
2.11. 아질산 소거능
3. 결과 및 고찰
3.1. 비타민, 무기물, 및 아미노산 함량
3.2. 총 페놀 함량
3.3. DPPH radical 소거능
3.4. 추출물의 안정성
3.5. 환원력
3.6. SOD 유사활성
3.7. 아질산염 제거 효과
4. 결론
References