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Antitumor and Free Radical-Scavenging Activities of Various Extract Fractions of Fruits and Leaves from Prunus mume

금매와 매화 잎 추출물의 프리라디칼 억제 활성 및 항암 효과

  • Rho, Kyu-A (Division of Food Bioscience, Konkuk University) ;
  • Kim, Gyeong-Ji (Division of Food Bioscience, Konkuk University) ;
  • Ji, Hyun-A (Division of Food Bioscience, Konkuk University) ;
  • Lim, Han-Sol (Department of Food Science and Technology, Seoul National University of Science & Technology) ;
  • Chung, Kang-Hyun (Department of Food Science and Technology, Seoul National University of Science & Technology) ;
  • Lee, Kwon-Jai (Department of Advanced Materials Engineering, Daejeon University) ;
  • Song, Byeong Chun (Division of Food Bioscience, Konkuk University) ;
  • An, Jeung Hee (Division of Food Bioscience, Konkuk University)
  • 노규아 (건국대학교 식품생명과학부) ;
  • 김경지 (건국대학교 식품생명과학부) ;
  • 지현아 (건국대학교 식품생명과학부) ;
  • 임한솔 (서울과학기술대학교 식품공학과) ;
  • 정강현 (서울과학기술대학교 식품공학과) ;
  • 이권재 (대전대학교 신소재공학) ;
  • 송병춘 (건국대학교 식품생명과학부) ;
  • 안정희 (건국대학교 식품생명과학부)
  • Received : 2015.04.09
  • Accepted : 2015.06.25
  • Published : 2015.08.31

Abstract

This study investigated the free radical-scavenging and antitumor activities of hot water, water, acetone, ethanol, ethyl acetate, chloroform, and hexane extracts of fruits and leaves from Prunus mume. The various extracts were evaluated for their total polyphenol, flavonoid, and tannin contents, scavenging activities by DPPH and ABTS analyses, reducing power, protective effects against oxidative stress in L-132 cells, and antitumor activities against A549, HeLa, and U87 cancer cells. Ethanol extracts of fruits and leaves showed the highest total polyphenol content (336.41 and 523 mg GAE/100 g, respectively). DPPH and ABTS radical-scavenging activities increased according to concentration of fruit. DPPH radical-scavenging activity of ethanol extracts from leaves was 65.48% at $200{\mu}g/mL$. All extract fractions of leaves showed high ABTS radical-scavenging activities. The reducing power activities increased according to increasing concentration of fruits and leaves. All extracts of leaves performed better than extracts of fruits in terms of protective effects against oxidative stress in L-132 cells. Ethyl acetate, chloroform, hexane, ethanol extracts of fruits and leaves showed anticancer activities against A549, HeLa, and U87 cancer cells. However, ethanol extracts of fruits and leaves showed no toxicity in normal cells (BNLCL2). This study suggests that antioxidant activities of fruits and leaves from P. mume depend on polyphenol contents. Thus, fruits and leaves from P. mume can be useful as natural antioxidant compounds.

본 연구는 금매와 매화 잎의 열수, 냉수, 아세톤, 에탄올, 에틸아세테이트, 클로르포름, 헥산 추출물의 총 폴리페놀, 플라보노이드, 탄닌 함량을 측정하고 DPPH와 ABTS 라디칼 소거활성, 환원력을 측정하였으며 세포보호 효과 및 항암활성을 분석하였다. 총 폴리페놀 함량은 금매와 매화 잎의 에탄올추출물에서 각각 336.41과 523 mg GAE/100 g의 가장 높은 함량을 보였다. 총 플라보노이드와 탄닌 함량은 금매보다 매화 잎이 전체적으로 높은 함량을 나타냈다. DPPH 라디칼과 ABTS 소거능에서는 금매의 농도가 증가함에 따라 활성이 증가하였다. 매화 잎 에탄올추출물은 $200{\mu}g/mL$ 농도에서 DPPH 라디칼 소거능이 65.48%로 가장 높았고 ABTS 라디칼 소거능에서는 매화 잎의 전 추출물에서 높은 활성을 보여주었다. 환원력에서는 금매와 매화 잎의 농도가 증가함에 따라 활성이 증가하였다. $H_3O_2$ 에 의해 유도된 산화적 손상에 대한 세포의 보호 효과에서 금매는 보호 효과가 나타나지 않았으나 매화 잎의 전 추출물에서 보호 효과를 보였다. 금매와 매화 잎은 에틸아세테이트, 클로르포름, 헥산, 에탄올 추출물에서 A549, HeLa, U87 세포의 높은 종양 억제능을 보였으나 에틸아세테이트, 클로르포름, 헥산 추출물은 간 정상세포(BNLCL2)에서 세포 독성을 보였으나 에탄올추출물만 간 정상세포에서 안정한 세포 생존율을 보였다. 본 연구의 결과, 금매와 매화 잎의 추출물에서 높은 항산화력은 폴리페놀 함량이 밀접하게 관여한 것으로 보인다. 본 연구에서는 금매와 매화 잎의 추출물은 항산화와 항암 기능성식품 소재로서의 개발 가능성이 있다고 보인다.

Keywords

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