Antioxidant and Nitrite Scavening Activity and α-Glucosidase Inhibitory Effect of Water Extract from Schizandra chinensis Baillon

오미자 열수 추출물의 항산화 활성과 아질산 소거능 및 α-Glucosidase 저해 효과

  • 조혜은 (신라대학교 식품영양학과) ;
  • 최영주 (신라대학교 식품영양학과) ;
  • 조은경 (신라대학교 바이오식품소재학과)
  • Published : 2010.04.30


The nutraceutical role of omija (Schizandra chinensis Baillon) water extract (OWE) was determined through the analysis of antioxidant activity, nitrite scavening activity, and xanthine oxdiase and $\alpha$-glucosidase inhibitory effects. Antioxidant activity of OWE was measured by using 2,2-diphenyl-1-picryl-hydrazyl (DPPH) free radical scavenging activity and superoxide dismutase-like activity (SODA). DPPH radical scavenging activity and SODA increased in a dose-dependent manner, and was about 49.0% at 2.5 mg/mL and 69.2% at 5 mg/mL, respectively. The xanthine oxidase and $\alpha$-glucosidase inhibitory activities of OWE were about 88.8% and 86.2% at 1 mg/mL, respectively. Nitrite scavenging activity of OWE was about 54.9%, 42.4%, and 34.2% on pH 1.2, 3.0, and 6.0 at 1 mg/mL, respectively. These results suggest that OWE has a strong antioxidant activity, and xanthine oxidase and $\alpha$-glucosidase inhibitory effects.


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