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    題名: Free Radical- Scavenging Activity of Taiwanese native plants
    作者: 鄭可大
    Hou WC;Lin RD;Cheng KT;Hung YT;Cho CH;Chen CH.
    貢獻者: 醫學系生化學科
    日期: 2003
    上傳時間: 2009-10-28 13:55:29 (UTC+8)
    摘要: The 70% aqueous acetone extracts of ten Taiwanese native plants were evaluated by various antioxidant assays, including 1, 1-diphenyl-2-picrylhydrazyl (DPPH), hydroxyl (.OH) radicals, and reducing power assay. In the present study, extracts of Acer buerferianum var. formosanum, Cleyera japonica var. morii, Cyclobalanopsis stenophylla var. stenophylloides, and Machilus zuihoensis exhibited stronger activity against DPPH radicals, and their IC50 values ranged from 5.4 to 8.3 microg/ml. The ten selected extracts effectively inhibited the formation of .OH generated in the Fenton reaction system. Among the extracts whose reducing power activities were determined, A. buerferianum var. formosanum, C. japonica var. morii, C. stenophylla var. stenophylloides, Eriobotrya deflex, and M. zuihoensis showed high activity. The results indicate the 70% aqueous acetone extracts of A. buerferianum var. formosanum, C. japonica var. morii, C. stenophylla var. stenophylloides, and M. zuihoensis with great potency in these assay systems and may be candidates for the development of natural antioxidants.
    關聯: Phytomedicine.(10):170-175.
    顯示於類別:[生物化學暨細胞分子生物學科] 期刊論文

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