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인지질막 liposome에 미치는 쑥갓 분획물의 항산화 효과

Antioxidant Activities of Chrysanthemum coronarium L. Fractions on the Liposomal Phospholipid Membrane

  • Bae, Song-Ja (Department of Food and Nutrition, Silla University) ;
  • Noh, Ok-Jeong (Department of Food and Nutrition, Silla University)
  • 발행 : 2002.04.01

초록

쑥갓(Chrsanthemum coronarium L., CC)은 국화과(Compositae)에 속하는 일년생 초본식물로 독특한 향기를 가진 지중해 원산 식물이다. 우리 나라에는 중국을 거쳐 조선초기에 전해졌으며 시기용으로 널리 애용되고 있다. 본 연구는 쑥갓의 메타놀 분획물(CCMM), 헥산분획물(CCMH), 에틸아세테이트 분획물(CCMEA), 부타놀분획물 (CCMB) 및 수층인 CCMA 분획물을 얻고 각각 일정량을 불포화인지질인 L-$\alpha$-dilinoleoylphosphatidylcholine(DLPC) liposome에 가하고 benzoyl peroxide를 가하여 산화시켜 분광광도법에 의하여 산화지수 ( $A_{234nm}$/ $A_{202nm}$)를 측정 비교하였다. 그 결과 쑥갓의 각 분획물 일정량을 가한 경우의 DLPC liposome의 산화지수는 시료를 가하지 않은 경우보다 낮아 높은 항산화력을 나타내었으나 강한 항산화제인 BHT를 가한 경우 보다는 항산화 정도가 낮았다. 그러나 특히 본 연구에서 알려진 결과로는 쑥갓 분획물들의 항산화력이 널리 알려진 항산화제인 $\alpha$-tocopherol을 가한 경우와 그 효과가 비슷하여 식용으로 애용되고 있는 쑥갓의 항산화적 생리활성이 본 연구에서 입증되었으며 이 효과를 기초로하여 식물 속의 항산화성을 이용한 식품의 개발이 기대 된다.

This experiment was designed to investigate the antioxidant effects of Chrysanthemum coronarium L. (CC) fractions on the liposomal phospholipid membranes. The sample CC was extracted and fractionated into five different types, methanol (CCMM), hexane (CCMH), ethylacetate (CCMEA), butanol (CCMB), and aqueous (CCMA) fractions. The antioxidant activities of CC fractions in oxidized dilinoleoylphosphatidylcholine (DLPC) liposomes were examined by spectrophotometry measuring conjugated dienes. The oxidation indices of five CC fractions exhibited weaker antioxidant activities than that of BHT in oxidized DLPC liposomes, however, showing much similar antioxidant activities of $\alpha$-tocopherol in the oxidized DLPC liposomes, which is known as a potent antioxidant. Among CC fractions, CCMM and CCMA in oxidized DLPC liposomes showed rather effective than $\alpha$-tocopherol after 2 h. These results strongly indicate that bioactive substances in CC fractions have a kind of function as potent antioxidants against biomembrane oxidation.

키워드

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피인용 문헌

  1. Evaluation of the antioxidant activities and nutritional properties of ten edible plant extracts and their application to fresh ground beef vol.93, pp.3, 2013, https://doi.org/10.1016/j.meatsci.2012.11.029