Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
권호 표지

Biological Activities of Extracts from Omija(Schizandra chinensis Baillon)

오미자 추출물의 생리활성

  • Kwon, Hoo-Ja (Faculty of Herbal Food Cuisine & Nutrition, Daegu Haany University) ;
  • Park, Chan-Sung (Faculty of Herbal Food Cuisine & Nutrition, Daegu Haany University)
  • 권후자 (대구한의대학교 한방식품조리영양학부) ;
  • 박찬성 (대구한의대학교 한방식품조리영양학부)
  • Published : 2008.08.30
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Abstract

We research the development of natural preservatives or functional foods. Here Omija(Schijandra chinensis Baillon) was extracted with distilled water and 70%(v/v) ethanol, and extracts were tested for biological(antibacterial, antioxidative, and fibrino lytic) activities. The polyphenol contents of water and ethanol extracts were 511.5 and 696.6 mg/100 g of Omija, respectively. The water and ethanol extracts from Omija demonstrated antibacterial activity against Listeria monocytogenes and Staphylococcus aureus. The electron-donating abilities(EDAs) of the water and ethanol extracts were 88.6% and 94.5% at 1,000 ppm. The superoxide dismutase(SOD)-like activities of the water and ethanol extracts were 51.2% and 53.6% at 1,000 ppm. The nitrite scavenging abilities(NSAs) of the water and ethanol extract were 70.2% and 76.2% at 1,000 ppm, and were the highest at pH 1.2. The higher antibacterial and antioxidative activities were seen in the ethanol extract, which also had a higher polyphenol content than did the water extract. However, fibrinolytic activities of the water extract were higher than those of the ethanol extract, at all dilutions in the range $1.25{\sim}50%$(v/v). We conclude that extracts of Omija can be used for health food development or natural preservatives in processed foods.

본 연구의 목적은 천연 보존료나 기능성 식품을 개발하기 위하여 오미자를 물과 70% 에탄올로 추출한 후, 추출물의 폴리페놀 함량, 생리활성(항균활성, 항산화능, 혈전용해능)을 측정하였다. 오미자의 물과 에탄올 추출물의 폴리페놀 함량은 각각 511.5, 696.6 mg/100 g이었다. 오미자의 물추출물과 에탄올추출물은 식중독세균인 L. monocytogenes와 S. aureus에 대하여 우수한 항균활성을 나타내었다. 물추출물과 에탄올추출물 1,000 ppm 농도에서, 전자공여능은 각각 88.6%, 94.5%였으며 SOD 유사활성은 51.2, 53.6%, 아질산염 소거능은 pH 1.2에서 70.2%, 76.2%였다. 폴리페놀함량이 높은 에탄올추출물이 물추출물에 비하여 항균, 항산화 활성이 우수하였다. 반면에 오미자 추출물 $1.25{\sim}5.0%$의 혈전용해능은 물추출물이 에탄올추출물에 비하여 우수한 활성을 나타내었다. 본 실험결과로 볼 때, 오미자 추출물은 건강식품 개발 소재 혹은 가공식품에서 천연 첨가물로 이용될 수 있을 것으로 생각된다.

Keywords

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