文化大學機構典藏 CCUR:Item 987654321/2840
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    题名: Antioxidant and antiproliferative activities of sweet potato (Ipomoea batatas [L.] Lam 'Tainong 57) constituents
    作者: Huang DJ
    Lin CD
    Chen HJ
    Lin YH
    贡献者: 園生系
    关键词: antioxidant
    antiproliferative
    free radical
    sweet potato
    日期: 2004
    上传时间: 2009-11-23 11:18:23 (UTC+8)
    摘要: The aim of this study is to examine possible antioxidant and antiproliferative activities of the different extracts from sweet potato (Ipomoea batatas [L.] Lam 'Tainong 57') organs. DPPH staining, total phenolic compounds and flavonoid content, DPPH radical, reducing power method, FTC method, and cell proliferation were all employed. In the DPPH staining, ethanol extract of vein had the highest radical - scavenging activity when it was diluted to 6.25 mg dry matter/mL. Among all the extracts, the highest amount of total phenolic and flavonoid compounds was found in the ethanol extract of vein. In the DPPH colorimetric method, it was found that ethanol extract of leaf had the highest radical -scavenging activity, followed by water extract of vein. In the reducing power activity assay, it was found that the water extract of leaf had the highest reducing power activity, followed by ethanol extract of vein. Like phenolic compounds, the highest FTC activity was found in the ethanol extract of vein. The antiproliferative activities aof sweet potato were studied in vitro using human lymphoma N134 cells, and the following results were found: water extract of vein had the highest antiproliferative activity with an EC50 of 449.6 +/- 27.73 mug/mL, followed by water extract of storage root, water extract of leaf, ethanol extract of storage root, and ethanol extract of leaf. Although the ethanol extract of vein showed strong antioxidant activity, it had no antiproliferative activity under the experimental conditions tested.
    關聯: BOTANICAL BULLETIN OF ACADEMIA SINICA Volume: 45 Issue: 3 Pages: 179-186
    显示于类别:[園藝暨生物技術學系] 期刊論文

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