$\require{mediawiki-texvc}$

연합인증

연합인증 가입 기관의 연구자들은 소속기관의 인증정보(ID와 암호)를 이용해 다른 대학, 연구기관, 서비스 공급자의 다양한 온라인 자원과 연구 데이터를 이용할 수 있습니다.

이는 여행자가 자국에서 발행 받은 여권으로 세계 각국을 자유롭게 여행할 수 있는 것과 같습니다.

연합인증으로 이용이 가능한 서비스는 NTIS, DataON, Edison, Kafe, Webinar 등이 있습니다.

한번의 인증절차만으로 연합인증 가입 서비스에 추가 로그인 없이 이용이 가능합니다.

다만, 연합인증을 위해서는 최초 1회만 인증 절차가 필요합니다. (회원이 아닐 경우 회원 가입이 필요합니다.)

연합인증 절차는 다음과 같습니다.

최초이용시에는
ScienceON에 로그인 → 연합인증 서비스 접속 → 로그인 (본인 확인 또는 회원가입) → 서비스 이용

그 이후에는
ScienceON 로그인 → 연합인증 서비스 접속 → 서비스 이용

연합인증을 활용하시면 KISTI가 제공하는 다양한 서비스를 편리하게 이용하실 수 있습니다.

Abstract AI-Helper 아이콘AI-Helper

Crude extract of young dangyuja (Citrus grandis Osbeck) fruit was investigated for its antioxidant activity as measured by 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging activity. Among the samples, including 4 Citrus species and various solvent-extracted-fractions of young dangyuja fr...

Keyword

AI 본문요약
AI-Helper 아이콘 AI-Helper

* AI 자동 식별 결과로 적합하지 않은 문장이 있을 수 있으니, 이용에 유의하시기 바랍니다.

제안 방법

  • sinensis, mature dangytga, and young dangyuja. Young dangyuja whole fruit extracts and residues were prepared for examination using successive solvents of varying polarity and by partitioning the methanol fraction with hexane, chloroform, ethyl acetate, and n-butanol. Furthermore, the effect of water- and butanol-extracted fractions (WF and BF, respectively) of young dangyuja fruit on antioxidant defense at the cellular level was investigated by a human hepatoma HepG2 cell line, for the first time.

대상 데이터

  • Dangyuja fruits were obtained from the National Institute of Subtropical Agriculture Jeju Province, Korea. Young fruits were collected on June 28, 2005 from dangyuja trees about 30 days after flowering and the mature fruits were collected in January 2005.
  • The human hepatoma HepG2 (KCLB No. 58065) cells were purchased from the Korea Cell Line Bank (Seoul, Korea). They were grown in Dulbecco's Modified Eble's Medium (DMEM) supplemented with 10%(v/v) heat-inactivated fetal bovine serum (FBS), 100 units/mL of penicillin, and 100 |ig/mL of streptomycin.

데이터처리

  • Experimental data were analyzed by Studenfs /-test and expressed as mean ± SD. A probability value oft?<0.

이론/모형

  • The free radical scavenging activity of the fruit extracts was measured by the DPPH radical assay described by Blois (21). Total extracts of citrus fruit at a final concentration of 0.
  • The cell viability was estimated by the conventional 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) reduction assay, which is based on cleavage of a tetrazolium salt by mitochondria dehydrogenases in viable cells (22). HepG2 cells were cultured at a density of IxlO5 cells/mL on 96-well microplates for 16 hr, washed twice using PBS, and pretreated with different concentrations of dangyuja fruit extracts.
  • Lipid peroxidation was assayed by measuring malondialdehyde (MDA) according to the method of Ohkawa et al. (24). Lipid peroxides react with thiobarbituric acid (TBA) and develop a pink color due to the formation of TBARS (TBA reactive substances).
본문요약 정보가 도움이 되었나요?

참고문헌 (25)

  1. Kehrer JP. Free radicals as mediators of tissue injury and disease. Crit. Rev. Toxicol. 23: 21-48 (1993) 

  2. Willcox JK, Ash SL, Catignani GL. Antioxidants and prevention of chronic disease. Crit. Rev. Food Sci. Nutr. 44: 275-295 (2004) 

  3. Ames BN, Shigenaga MK, Hagen TM. Oxidants, antioxidants, and the degenerative diseases of aging. P. Natl. Acad. Sci. USA 90: 7915-7922 (1993) 

  4. Fiers W, Beyaert R, Declercq W, Vandenabeele P. More than one way to die: apoptosis and necrosis and reactive oxygen damage. Oncogene 18: 7719-7730 (1999) 

  5. Deng G, Su JH, Ivins KJ, Houten BY, Cotman CW. Bcl-2 facilitates recovery from DNA damage after oxidative stress. Exp. Neurol. 159: 309-318 (1999) 

  6. Satoh I, Sakai N, Enokido Y, Uchiyama Y, Hatanaka H. Free radical independent protection by nerve growth factor and Bcl-2 of PC12 cells from hydrogen peroxide triggered-apoptosis. J. Biochem. 120: 540-546 (1996) 

  7. Oliva MR, Iradi A, Garrido F, Ramos M, Oltra AM, Muniz P, Saez GT. Oxidative stress induces the expression of the major histocompatibility complex in murine tumor cells. Free Radical Res. 35: 119-128 (2001) 

  8. Ng TB, Liu F, Wang ZT. Antioxidative activity of natural products from plants. Life Sci. 66: 709-723 (2000) 

  9. Park YK, Lee WY, Park SY, Ahn JK, Han MS. Antioxidant activity and total phenolic content of Callistemon citrinus extracts. Food Sci. Biotechnol. 14: 212-215 (2005) 

  10. Choi YM, Ku JB, Chang HB, Lee JS. Antioxidant activities and total phenolics of ethanol extracts from several edible mushrooms produced in Korea. Food Sci. Biotechnol. 14: 700-703 (2005) 

  11. Heo SJ, Park PJ, Park EJ, Cho SM, Kim SK, Jeon, YJ. Antioxidative effect of proteolytic hydrolysates from Ecldonia cava on radical scavenging using ESR and HzOz-induced DNA damage. Food Sci. Biotechnol. 14: 614-620 (2005) 

  12. Ross JA, Kasum CM. Dietary flavonoids; bioavailability, metabolic effects, and safety. Annu. Rev. Nutr. 22: 19-34 (2002) 

  13. Huang HY, Alberg AJ, Norkus EP, Hoffinan SC, Comstock GW, Helzlsouer KJ. Prospective study of antioxidant micronutrients in the blood and the risk of developing prostate cancer. Am. J. Epidemiol. 157: 335-344 (2003) 

  14. Knekt P, Jarvinen R, Seppanen R, Hellovaara M, Teppo L, Pukkala E, Aromaa A. Dietary flavonoids and the risk of lung cancer and other malignant neoplasms. Am. J. Epidemiol. 146: 223-230 (1997) 

  15. Miller NJ, Rice-Evans CA. The relative contributions of ascorbic acid and phenolic antioxidants to the total antioxidant activity of orange and apple fruit juices and blackcurrant drink. Food Chem. 60: 331-337 (1997) 

  16. Rapisarda P, Tomaino A, Lo Cascio R, Bonina F, De Pasquale A, Saija A. Antioxidant effectiveness as influenced by phenolic content of fresh orange juices. J. Agric. Food Chem. 47: 4718-4723 (1999) 

  17. Roberts, QG, Gordon, MH. Determination of the total antioxidant activity of fruits and vegetables by a liposome assay. J. Agric. Food Chem. 51: 1486-1493. (2003) 

  18. Mokbel MS, Hashinaga F. Evaluation of the antioxidant activity of extracts from butan (Citrus grandis Osbeck) fruit tissues. Food Chem. 94: 529-534 (2006) 

  19. Sun, CD, Chen, KS, Chen, Y, Chen. QJ. Contents and antioxidant capacity of limonin and nomilin in different tissues of citrus fruit of four cultivars during fruit growth and maturation. Food Chem. 93: 599-605 (2005) 

  20. Alia M, Ramos S, Mateos R, Bravo L, Goya L. Response of the antioxidant defense system to t-Butyl hydroperoxide and hydrogen peroxide in a human hepatoma cell line (HepG2). J. Biochem. Mol. Toxic. 19: 119-128 (2005) 

  21. Blois MS. Antioxidant determinations by the use of a stable free radical. Nature 181: 1199-1200 (1958) 

  22. Hansen MB, Nielsen SE, Berg K. Re-examination and further development of a precise and rapid dye method for measuring cell growth! cell kill. J. Immunol. Method 119: 203-210 (1989) 

  23. Wang H, Joseph JA. Quantifying cellular oxidative stress by dichlorofluorescein assay using microplate reader. Free Radical. Bio. Med. 27: 612-616 (1999) 

  24. Ohkawa H, Ohishi N, Yagi K. Assay for lipid peroxides in animal tissues by thiobarbituric acid reaction. Anal. Biochem. 95: 351-358 (1979) 

  25. Heim KE, Tagliaferro AR, Bobilya, DJ. Flavonoid antioxidants: chemistry and structure-activity relationships. J. Nutr. Biochem. 13: 572-584 (2002) 

저자의 다른 논문 :

활용도 분석정보

상세보기
다운로드
내보내기

활용도 Top5 논문

해당 논문의 주제분야에서 활용도가 높은 상위 5개 콘텐츠를 보여줍니다.
더보기 버튼을 클릭하시면 더 많은 관련자료를 살펴볼 수 있습니다.

관련 콘텐츠

오픈액세스(OA) 유형

FREE

Free Access. 출판사/학술단체 등이 허락한 무료 공개 사이트를 통해 자유로운 이용이 가능한 논문

이 논문과 함께 이용한 콘텐츠

저작권 관리 안내
섹션별 컨텐츠 바로가기

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

AI-Helper 아이콘
AI-Helper
안녕하세요, AI-Helper입니다. 좌측 "선택된 텍스트"에서 텍스트를 선택하여 요약, 번역, 용어설명을 실행하세요.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.

선택된 텍스트

맨위로