감마선 조사한 오미자 추출물의 아질산염 소거능, Tyrosinase와 Xanthine Oxidase 저해 효과

Inhibitory Effect on Tyrosinase and Xanthine Oxidase, and Nitrite Scavenging Activities of Schizandrae Fructus Extract by Gamma Irradiation

  • 전태욱 (한국원자력연구소 방사선식품생명공학기술개발팀) ;
  • 조철훈 (한국원자력연구소 방사선식품생명공학기술개발팀) ;
  • 김기혁 (우송대학교 식품생명과학부) ;
  • 변명우 (한국원자력연구소 방사선식품생명공학기술개발팀)
  • 발행 : 2002.12.01

초록

오미자 추출물에 감마선을 조사하여 tyrosinase 저해, xanthine oxidase 저해 및 아질산염 소거능에 대하여 검토하였다. 오미자 추출물은 열수, ethanol, methanol 그리고 acetone등을 이용하여 추출하였으며, 감마선은 10, 20과 30 kGy로 조사하였다. 오미자 추출물은 모두 tyrosinase 저해 효과를 가지고 있는 것으로 나타났다. 감마선 조사 후 오미자 추출물에 대한 tyrosinase는 열수 추출물보다 용매 추출물이 저해 효과가 높게 나타내었다. Xanthine oxidase 저해 효과실험 결과, 오미자 추출물은 열수 및 용매 추출물 모두 저해력을 나타내었으며, 감마선 조사는 xanthine oxidase 저해력에 영향을 미치지 않았다. 아질산염 소거능은 pH 1.2, 3.0 그리고 6.0으로 측정하였다. 오미자 추출물은 pH 1.2와 3.0 에서 높은 소거력을 나타내었고, 열수 추출물은 methanol, ethanol 그리고 acetone 추출물보다 아질산염 소거능이 훨씬 높게 나타내었다. 감마선을 30 kGy까지 조사하였을 때, 오미자 추출물의 생리 활성에는 크게 영향을 미치지 않았다.

This study was performed to investigate the effects of tyrosinase inhibition, xanthine oxidase inhibition and nitrite-scavenging effects of gamma-irradiated Schizandrae Fructus extracts from different solvents. Schizandrae Fructus was extracted by hot water, ethanol, acetone and methanol, and the extracts were irradiated 10, 20 and 30 kGy with gamma rays. All extracts from Schizandrae Fructus showed inhibition effect against tyrosinase. Tyrosinase inhibition effect of Schizandrae Fructus were higher in solvent extracts than hot water extracts by irradiation. The Schizandrae Fructus extracts had a higher inhibitory effect against xanthine oxidase, and the effect was not changed by irradiation. Nitrite scavenging activity, which was measured at various pH conditions (1.2, 3.0, 6.0), was the highest in Schizandrae Fructus extracts at pH 1.2 and 3.0. Hot water extracts provided higher nitrite scavenging effect than those of the methanol, ethanol and acetone extracts. Gamma-Irradiation may not influence on biological activites of the extracts when irradiated up to 30 kGy.

키워드

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