Antioxidant properties and antioxidant activities were analyzed for water extracts and 50% and 70% ethanol extracts of the leaf of Angelica gigas Nakai. The polyphenol and flavonoid contents in water, 50%, and 70% ethanol extract of the leaf of Angelica gigas Nakai, it was found that the polyphenol contents were 18.75 mg GAE/g, 28.95 mg GAE/g, and 34.73 mg GAE/g, respectively, and flavonoid contents were respectively. The DPPH IC50 scavenging activity was 45.84 mg/mL, 36.44 mg/mL, 19.11 mg/mL, respectively, and theABTS+radical scavenging ability (1 mg/mL) was 28.73%, 22.79%, and 12.70%, respectively. Tyrosinase inhibitory activity, 70% ethanol extract, 50% ethanol extract, and water extract 33.14%, and 4.53%, respectively. Nitrite scavenging activity, 70% ethanol extract, 50% ethanol extract, and water extract were in the order of 1 mg/mL scavenging activity, 36.43%, 34.80%, and 18.85%, respectively.

Abstract
서 론
재료 및 방법
    1. 실험재료
    2. 시료추출물제조
    3. 총 폴리페놀 및 플라보노이드 함량 측정
    4. DPPH(1,1-diphenyl-2-picrylhydrazyl) 라디칼 소거능
    5. ABTS+라디칼 소거능
    6. Tyrosinase 저해 활성 측정
    7. 아질산염소거능
    8. 통계처리
결과 및 고찰
    1. 참당귀잎 추출물의 폴리페놀 및 플라보노이드 함량
    2. 참당귀잎 추출물의 DPPH 및 ABTS+ 라디칼 소거 활성
    3. 참당귀잎 추출물의 tyrosinase 저해 활성측정
    4. 참당귀잎 추출물의 아질산염 소거능 측정
요약 및 결론
References

• 이연리(대전보건대학교 식품영양과) | Youn Ri Lee (Dept. of Food and Nutrition, Daejeon Health Institude of Technology) Corresponding author