Antioxidant properties of solvent extracts from Terminalia catappa leaves

被引:55
作者
Chyau, CC
Tsai, SY
Ko, PT
Mau, JL [1 ]
机构
[1] Natl Chung Hsing Univ, Dept Food Sci, Taichung 402, Taiwan
[2] Hung Kuang Inst Technol, Dept Food & Nutr, Shalu 433, Taiwan
关键词
Terminalia catappa; antioxidant activity; reducing power; scavenging effect; chelating effect;
D O I
10.1016/S0308-8146(02)00162-0
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Solvent extracts were prepared from green, yellow fallen and red fallen leaves of Terminalia catappa L. and their antioxidant activities were evaluated. Other antioxidant properties of methanolic extracts, including reducing power, scavenging and chelating effects, were also determined. The yields were consistently in the order of yellow fallen (6.34-10.50%)>red fallen (5.12-9.98%)>green leaf extracts (2.36-6.08%) for four solvents used. Higher yields were obtained from extraction with ethyl acetate or methanol than with dichloromethane or pentane. For three different leaves, the antioxidant activities were in the order methanol>ethyl acetate>dichloromethane>pentane extracts and all showed a parabolic-like curve with the maximum at 0.1-0.5 mg ml(-1) of solvent extract. Reducing powers of three methanolic extracts and their scavenging effects on 1,1-diphenyl-2-picrylhydrazyl radicals were excellent at 0.5 and 0.1 mg ml(-1), respectively. At 30 mg ml(-1), chelating effects of methanolic extracts from green, yellow fallen and red fallen leaves on ferrous ions were 77.3, 48.6 and 48.3%, respectively. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:483 / 488
页数:6
相关论文
共 21 条
  • [1] [Anonymous], FREE RADICALS BIOL M
  • [2] Folk medicine Terminalia catappa and its major tannin component, punicalagin, are effective against bleomycin-induced genotoxicity in Chinese hamster ovary cells
    Chen, PS
    Li, JH
    Liu, TY
    Lin, TC
    [J]. CANCER LETTERS, 2000, 152 (02) : 115 - 122
  • [3] Fluorometric assay for screening antioxidative activity of vegetables
    Furuta, S
    Nishiba, Y
    Suda, I
    [J]. JOURNAL OF FOOD SCIENCE, 1997, 62 (03) : 526 - 528
  • [4] IMAIDA K, 1983, CARCINOGENESIS, V4, P885
  • [5] ANTITUMOR AGENTS .129. TANNINS AND RELATED-COMPOUNDS AS SELECTIVE CYTOTOXIC AGENTS
    KASHIWADA, Y
    NONAKA, G
    NISHIOKA, I
    CHANG, JJ
    LEE, KH
    [J]. JOURNAL OF NATURAL PRODUCTS, 1992, 55 (08): : 1033 - 1043
  • [6] KO PT, 1998, THESIS NATL CHUNG HS
  • [7] MEDICINAL-PLANTS USED FOR THE TREATMENT OF HEPATITIS IN TAIWAN
    LIN, CC
    KAN, WS
    [J]. AMERICAN JOURNAL OF CHINESE MEDICINE, 1990, 18 (1-2): : 35 - 43
  • [8] Modification of mitomycin C-induced clastogenicity by Terminalia catappa L in vitro and in vivo
    Liu, TY
    Ho, LK
    Tsai, YC
    Chiang, SH
    Chao, TW
    Li, JH
    Chi, CW
    [J]. CANCER LETTERS, 1996, 105 (01) : 113 - 118
  • [9] ANTI-AIDS AGENTS .2. INHIBITORY EFFECTS OF TANNINS ON HIV REVERSE-TRANSCRIPTASE AND HIV REPLICATION IN H9 LYMPHOCYTE-CELLS
    NONAKA, G
    NISHIOKA, I
    NISHIZAWA, M
    YAMAGISHI, T
    KASHIWADA, Y
    DUTSCHMAN, GE
    BODNER, AJ
    KILKUSKIE, RE
    CHENG, YC
    LEE, KH
    [J]. JOURNAL OF NATURAL PRODUCTS, 1990, 53 (03): : 587 - 595
  • [10] Antioxidant activity of magnolol, honokiol, and related phenolic compounds
    Ogata, M
    Hoshi, M
    Shimotohno, K
    Urano, S
    Endo, T
    [J]. JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, 1997, 74 (05) : 557 - 562